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HomeMy WebLinkAbout2010 CONC ST PROGRAM_12-49000002March 23, 2012 Mr. Carl Ahrendt, P.E. Cobb Fendley, Inc. 2925 Briarpark Drive Houston, TX 77042 RE: Project No. 2016353 Drainage Study - 2010 Concrete Street Program for the City of La Porte HCFCD Units F216-00-00, F216-04-00; Key Map 58013; Pct 2 Dear Mr. Ahrendt: Harris founN flood fonfrol Districf 9900 Northwest Freeway Houston, Tuas 77092 713-684-4" www.hcfcd.org The Flood Control District has reviewed the submitted report pursuant to the HCFCD Policy. Criteria. and Procedure Manual. This review addresses issues regarding hydraulic and hydrologic drainage design criteria only. Design criteria regarding the site layout of the proposed development and drainage facilities will be reviewed upon submittal of site plans. Our understanding of the report is described below. Submitted Report Drainage Study 2010 Concrete Street Program for the City of La Porte May 2011 Consulting Engineer The Report was prepared by: Cobb Fendley, Inc. 13430 Northwest Freeway, Suite 1100 Houston, TX 77040 Cart E. Ahrendt, P.E. TX P.E. # 93576 Project Type This study presents the results of a drainage study for the La Porte Concrete Street Program which provides a basis for the future storm sewer design of the existing neighborhood bounded by Main Street, South Broadway, Fairmont Parkway and SH 146 in the City of La Porte, Harris County, Texas. The La Porte Concrete Street Program envisions replacement of existing asphalt and concrete streets with the phased construction of concrete curb and gutter streets combined with a proposed storm sewer trunk capable of conveying a 5-year design storm event. A Division of Hams County Public Infrastructure Department March 23, 2012 Mr. Carl E. Ahrendt, P.E. Cobb Fendley, Inc. Page 2 HCFCD Jurisdiction The proposed development outfalls directly into HCFCD right-of-way. Therefore, HCFCD criteria will apply. Report's Findings The report states, "Through this analysis we have determined that the proposed storm sewer plan will result in no impacts to Little Cedar Bayou upstream of SH 146 for the future developed condition since all flows in the proposed condition are less than the calculated existing condition flows." HCFCD Planning The Planning Department offers the following: Department Technical Review The report includes statements that the project will cause no adverse impact to the receiving waterways in storm events up to and including the 100-year event. The documentation within the report generally supports the conclusions stated by the engineer. Based on the stated conclusions, HCFCD interposes no objection to the referenced report. Please note, this acceptance does not necessarily mean that the entire report, including all supporting data and calculations, has been completely checked and verified. However, the report is signed, dated, and sealed by a Professional Engineer licensed to practice in the State of Texas, which therefore conveys the licensed engineer's responsibility and accountability. Additional HCFCD Site plans must be submitted to HCFCD for review and signature. Criteria All work proposed within existing and future HCFCD right-of-way must be designed and constructed in accordance with the HCFCD Policy. Criteria, and Procedure Manual. Environmental The Harris County Flood Control District's Environmental Department Review & Permitting requires that the U.S. Army Corps of Engineers be contacted to determine if a permit is required for any portions of this project located within any existing or proposed HCFCD right-of-way. The type of permit required (if any) must be stated on the site plans. Actual copies of approved Corps of Engineers permits necessary for work within HCFCD rights -of -way must be submitted with the HCFCD permit application and be given to the HCFCD Property Management Department at least 48 hours prior to construction. March 23, 2012 Mr. Carl E. Ahrendt, P.E. Cobb Fendley, Inc. Page 3 Please also note that the City of La Porte is the Floodplain Administrator for the receiving waterways. All issues regarding' local floodplain regulations must be coordinated through the City of La Porte. Thank you for coordinating this project with the Flood Control District. If you have any questions, please contact the Flood Control District's Galveston Bay watershed coordinator, Mr. Terry. Woodfin, P.E.; telephone number 713-316-4872. Sincerely, Mark L. Sherley, P.E., RPLS Watershed Coordination Department MLS:HEH:dj cc: Mr. Julian Garza, Jr., P.E., City of La Porte Mr. Terry Woodfin, P.E., HCFCD Ur 03-23-12 P#2016353 2010 Concrete St Program City of LaPorte HH INO.doc Alk Harris County flood Control District 9900 Northwest Frrewuy I1ou.Gon. Trxus 77092 Mr. Julian Garza, Jr., P.E. City of La Porte 604 W. Fairmont Parkway La Porte, TX 77571 U.S. POSTAGE)) wTNEY BowES —���._ `! ZIP 77092 $ 00 0.450 oz 1n 0001373618MAR 30 2012 CCobbFendle Y LETTER OF TRANSMITTAL To: Julian Garza, P. E City Engineer 604 W. Fairmont Parkway La Porte, TX 77571 ATTENTION: WE ARE SENDING YOU THE FOLLOWING VIA: Delivery ® Prints, .\ ❑ Originals Date: 7/25/11 CobbFendley Job: 1012-056-00 Re: Concrete Street Program Study Final Report Submittal ❑ Other QUANTITY DESCRIPTION 12 Reports 5 Full-size Exhibits 1 CD of relevant files PURPOSE OF TRANSMITTAL: REMARKS: Copy To ❑ For Approval ❑ For Your Use ® As Requested ❑ For Review & Comment Julian - I've revised everything per our discussions. File SIGNED qi-AL a Heath Lyle P.E. 13430 Northwest Freeway, Sufte 1100 1 Houston, Texas 77040 1 713.462.3242 1 fax 713.462.3262 1 www.cobfen.com February 8, 2011 Mr. Tim Tietjens Director of Planning Department City of La Porte 604 West Fairmont Parkway La Porte, Texas 77571 Re: La Porte Concrete Street Program Standards Review Dear Tim: CobbFendley VIA E-MAIL -ORIGINAL BY MAIL Upon review of the city's standards and discussions with city staff, I would recommend that the city consider removing Figure 1 —'Intensity vs. Time of Concentration vs. Rainfall Frequency (IDF Curves) which requires a time of concentration calculation from Figure 2 and removing Figure 2 —'Time of Concentration for Surface Flow' so that they can be replaced by Figure 9.1 - *Intensity vs. Time of Concentration vs. Rainfall Frequency. In replacing Figure 1 and 2 with Figure 9.1, the same IDF Curves would be used to generate the flows for the Pity but the approach used to calculate the time of concentration, which is critical in determining the design flows, would be significantly simplified and more likely to produce consistent engineering designs for storm sewer pipes that meet the city's minimum design requirements. Currently, the standards on Figure 2 used to calculate the time of concentration rely on (3) subjective variables to include: flow distance along furthest point in the drainage area; the roughness coefficient of the surface along that flow distance, and the slope along that flow distance. Therefore, the current standard is likely to produce different designs from different engineers whereas the approach used in Figure 9.1 uses only the drainage area to calculate_the time of concentration which is a non -subjective variable and is easily verified. In summary, the proposed approach of using Figure 9.1 to generate the City of La Porte's stone sewer pipe flow requirements would be similar to the City of Houston except that it would be more conservative because La Porte would be using 5 year design flows Instead of 2 year design flows. 'Furthermore, it may be considered an opportune time to incorporate this revision to the city standards to ensure that the city's design standards are consistently met or exceeded throughout the large and multi -phased storm sewerconstruction that is to take place as part of the'La Porte Concrete Street Program' which is currently under development. Sincerely, CobbFendley Heath Lyle, P.E. Project Manager Enclosures cc: Don Pennell, Public Works Director Julian Garza, Senior Engineer D:rla2Ol(hl2o56.w.yw%conaeisVNMTtnwr. swaaw Review.aoc City of La Porte d 0 Intensity vs. Time of Concentration vs. Rainfall Frequency (IDF'Curves) Sou=: Hydro 35/rR40 MEN Infensity,i= b FIGURE 1 (d+TC)e Rainfall Frequency b d e 2-year 75.01 16.2 0.8315 3-Year 77.27 17.1 0.8075 5-year 84.14 17.8 0.7881 10-Year 93.53 18.9 0.7742 25-year 115.9 21.2 0.7808 100-year 125.4 21.8 0.7500 } V Ov _ ICOO 4jy1—.O.0 . SCO VI EOO C �JL 600_ i `mC .0 500 G aoC14 400 S L1 300 O" \ AOI=PM P = ,rEO SOIL' ) N�O200 la- ISD C N04 OFO (]�J,0F.S5) 0 100 u CLOG0$O.fO -SE =ASS; tL - gD J LM . w e0 ? OJO 70 �t 20 1 C wa 2` 0 0 ss 0 C w0 aQ. LJ VN 40 4 • 1 F- 1 2 W O e cid W f'(_ �r2 I a 1 d op 4 _jCL L1.00 0 C 50 Z � O N �ti.n F EXAMAtc' OVEr LAND FL=r GUTTER FLOW L = 200' ' L z 400' . a s 0.40 (, J. G.?.'155; n a O.: 5 t a 284.C:. 1 = 2.0 MIX. TOTAL -inE Or CO,X'CEN RATIOP. = 20.D L 2.0a 22.0 aw. FIGURE 2 TIME OF•CONCENTRATION FOR SURFACE FLOW LO 09 • • CITY OF HOUSTON DESIGN MANUAL Department of Public Works & Engineering Stormwater Design Reouirements END OF CHAPTER FIGURE 9.1 City of Houston IDF Curves Intensity vs. Time of Concentration vs Rainfall Frequency Source: Hydro 3SM 40 ���■■n. mmmmmw� „ b TC=10AQ1 i.,, is i� (dt)J r A —errs in stirs R=WlFmq= cy b d e 2-yeu 75.01 16.2 0.8315 3-yeu 7727 17.1 0.9075 5-yeu 94.14 17.8 0.7881 10-year 93.53 18.9 0.7742 25-year 1159 212 0.7808 100-ye2r 125.4 21.8 0.7500 9-23 7-01-2009 REQUEST FOR CITY COUNCIL AGENDA ITEM Agenda Date Requested: July 11, 2011 Requested By:.lulian Gana Department: Planning Report: X Resolution: _Ordinance: Appropriation Source of Funds: N/A Account Number: N/A Amount Budgeted: N/A Amount Requested: N/A Budgeted Item: _YES _NO SUMMARY City Council authorized Cobb, Fendley & Associates, Inc. to prepare a report to determine the engineering, planning, and construction cost associated with phased construction of concrete streets, curb and gutter, and associated storm sewers in the area bound by Main Street, South Broadway, Fairmont Parkway and SH 146. Mapping of current watersheds, survey, hydraulic and hydrologic modeling, preliminary planning and cost estimates have been completed and a draft report prepared and reviewed by Planning and Public Works staff. Representatives of Cobb, Fendley & Associates will be present to provide Council with an update on the current status of the project. A final report will be provided prior to the August 8, 2011, City Council Meeting. Action Required by Council: Receive report from Cobb, Fendley & Associates. Approved for City Council Agenda Ron Bottoms, City Manager Date ��9.�/�✓�rYlol��/•-'Oh�,.�af �C✓J��M+--/�24�R�- . laGtQs'� a+2vSF (I 4-1) /1,11, plv -Zo f 1217 !I mill -I 'r � 1- HOan COL `3Fendley Heath Lyle, P.E. Project Manager hlyleCcobbfendley.com Cobb, Fentlley a Aseecletea, Ino. 1 713.462.3242 1 fax 713.4e2.3262 13430 r'OMWIest FWY, State 1100 1 Heueton, Texan 77M OF AO its 9 1 rt V %EXAS December 21, 2010 Mr. Dale Conger, P.E. Cobb, Fendley and Associates, Inc. 13430 Northwest Freeway, Ste 1100 City of La Porte Established 1892 Houston, Tx. 77040 -213 5'GZ 3Z yz ��r3 �i2 �3s�2 Re: La Porte Concrete Street Program Dear Mr. Conger, 4le lP�. You are hereby notified to proceed with the Concrete Street Program project for the City of La Porte per the award of City Council at their meeting of December 13, 2010. Mr. Julian Garza, Senior Engineer, will be the lead project representative on behalf of La Porte and can be reached at 281 470-5063. 1 will be the supervising representative and can be reached at 281470-5056. Any changes in the scope of work or additions to the project must be approved by the City's representative prior to commencement. Mrs. Peggy Lee, Planning Department Coordinator, will process all payment transactions and submittal information. Please do not hesitate to contact me if there are any questions or other information necessary in the course of the contract. Thank you in advance for your cooperation. We look forward to working with you and to the results of this important program. incerrely, 6S— ` Tim Tietjens Dire for 1 Planning Department C: LJulia� n.Garza, Senior Engineef _ --Y Steve Gillett, Director of Public Works File 604 W. Fairmont Pkwy. • La Porte, Texas 77571 • (281) 471-5020 November 10, 2010 i Mr. Steve Gillett Director of Public Works City of La Porte 604 West Fairmont Parkway La Porte, Texas 77571 Re: Concrete Street Program Study Contract for Professional Engineering Services Dear Steve: CobbFendley VIA EMAIL Cobb, Fendley & Associates, Inc. ("CobbFendley") is pleased to propose professional surveying and engineering services to the City of La Porte (City) in connection with the Concrete Street Program Study. PROJECT The Concrete Street Program envisions replacement of existing asphalt and concrete streets in an area bounded by Main Street, South Broadway, Fairmont Parkway and SH 146. The neighborhood is well established, has a grid -pattern layout, and is drained by a system of open and closed storm sewers. There are currently several concrete curb and gutter streets with storm sewers that were constructed in the 1960's. The project goal is to determine the engineering, planning and construction costs associated with phased construction of concrete streets, curb and gutter, and associated storm sewers. It is anticipated that the Program will develop a strategy to install a "backbone" drainage system, with streets and associated storm sewers to be constructed in phases. AGREEMENT. When accepted by the signature of City's authorized representative, this Authorization and the documents referenced herein shall constitute the entire agreement between the City and CobbFendley with respect to this project. The specific tasks to be performed by CobbFendley in conjunction with this project are described in Attachment A, Scope of Services. Compensation for our services is also specified in Attachment A. Further provisions of this agreement are contained in the Provisions of the Authorization for Professional Services which is attached and constitutes a part of this agreement. 13430 Northwest Freeway, Suite 1100 1 Houston, Texas 77040 1 713.462.3242 1 fax 713.462.3262 1 w .00bfen.com Mr. Steve Gillett November 4, 2010 Page 2 of 7 PROPOSAL ACCEPTANCE If this proposal is agreeable to you, please provided below and return one copy to us within sixty days of the date hereon. The engineering services to the City of La Porte on this project. Sincerely, COBB, FENDLEY & ASSOCIATES, INC. OaleConger, Vice President Attachments ° CobbFendley. indicate your acceptance by signing in the space for our file. This proposal is void if not accepted opportunity to propose professional surveying and is appreciated and we look forward to serving you Print -Name Title 7— Date of Authorization DADocs\Proposa1sl.Sma11 Proposats\2010Ua Porte\Concrete Street Program.doc 2. 4. 5. 6. 8. S. 10. PROVISIONS OF THE AUTHORIZATION FOR PROFESSIONAL SERVICES AUTHORIZATION TO PROCEED Signing this Agreement shall be construed as authorization by CITY for Cobb, Fendley & Associates, Inc. (CobbFendley) to proceed with the services, unless otherwise provided for in this agreement. INTERPRETATION OF FEES Unless specified as houdy, the fees shown herein are considered lump sum amounts. DIRECT PERSONNEL EXPENSE Direct Labor Costs means salaries and wages paid to CobbFendley's employees plus payroll related costs and benefits such as payroll taxes, workers compensation, health and retirement benefits, bonuses, sick leave, vacation, and holiday pay applicable hereto. DIRECT EXPENSES CobbFendley's direct expenses shall be those costs incurred on or directory for the CITY'S project, including but not limited to necessary transportation, costs including mileage at the current IRS rate, meals and lodging, laboratory tests and analyses, and printing and binding charges. These direct _ expenses shall be billed. in accordance with the attached rate schedule, or at actual cost plus a 10% administrative fee. OUTSIDE SERIVICES When technical or professional services are furnished, with approval by the CITY, by an outside source; an additional 10% administrative fee shall be added to the cost of these services by CobbFendley to. cover CobbFendley's administrative costs. COST PROJECTIONS Any cost projections by CobbFendley will be on a basis of experience and judgment, but since, it has no control over market conditions or bidding procedures, CobbFendley cannot warrant that bids or ultimate construction costs will not vary from these cost projections. PROFESSIONAL STANDARDS CobbFendley will be responsible, to the level of competency presently maintained by other practicing professionals providing the same type of services in CITY'S community, for the professional and technical soundness, accuracy, and adequacy of all design, drawings, specifications, and other services and materials furnished under this Agreement. CobbFendley makes - no other warrant, expressed or implied. TERMINATION Either CITY or CobbFendley may terminate this Agreement by giving 30 days written notice to the other party. In such event, CITY shall forthwith pay CobbFendley in full for all services previously authorized and performed prior to effective date of termination. If no notice of termination is given, relationships and obligations created by this Agreement shall be terminated upon completion of all applicable requirements of this Agreement. OWNERSHIP OF DOCUMENTS CobbFendley retains the ownership of all drawings, documents, specifications, exhibits and reports produced by CobbFendley. Copies of these documents will be made available to the CITY upon request. INDEMNIFICATION To the fullest extent permitted by law, CobbFendley shall .indemnify and hold harmless the CITY and OWNER and their respective officers and employees from and against all claims, actions, proceedings, liabilities, losses, damages, costs and expenses, including reasonable legal fees, which the CITY and OWNER and their respective officers and employees may sustain to the extent or degree on a comparative basis of fault arising from the negligent acts, errors or omissions of CobbFendley, its officers, employees or subconsultants, arising from the services provided herein. To the fullest extent permitted by law, the CITY shall indemnify and hold harmless CobbFendley and its respective officers, employees and subconsultants from and against all claims, actions, proceedings, liabilities, losses, damages, costs and expenses, including reasonable legal fees, which CobbFendley and its respective officers, employees or subconsultants may sustain to the extent or degree on a comparative basis of fault arising from the negligent acts, errors or omissions of the CITY. 11. LIMITATION OF LIABILITY THE LIABILITY OF COBBFENDLEY TO THE CITY SHALL BE LIMITED TO SERVICES PERFORMED SOLEY BY COBBFENDLEY. THE LIABILITY OF COBBFENDLEY TO THE CITY FOR ANY CAUSE OR COMBINATION OF CAUSES IS, IN THE AGGREGATE, LIMITED TO AN AMOUNT NO GREATER THAN THE FEE EARNED UNDER THIS' AGREEMENT. COBBFENDLEY IS NOT RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES THAT MAY BE SUSTAINED BY THE CITY OR THE CITY'S AGENTS. 12. MEDIATION If all claims, counterclaims, disputes and other matters in questions between the CITY and CobbFendley arising out of or relating to this Agreement or the breach thereof cannot be settled through direct discussion, the parties hereto agree to first endeavor to settle the dispute in an amicable manner by nonbinding mediation under the Construction Industry Mediation Rules of American Arbitration Association, before having recourse to arbitration or any other judicial forum. 13. LEGAL EXPENSES In the event that legal action is brought by CITY or AbFendley against the other party to enforce any of the obligations hereunder or arising out of any dispute conceming the terms and conditions hereby created, the losing party shall pay the prevailing party such reasonable amounts for fees, costs and expenses as may be set by the court. 14. PAYMENT TO COBBFENDLEY Monthly invoices will be Issued by CobbFendley for all services performed under the terms of this agreement. Invoices are due and payable upon receipt. Interest at the rate of 1.5% per month may be charged on all past -due amounts, unless not permitted by law, in which case, interest will be charged at the highest amount permitted by law. If CITY is not the OWNER, CITY agrees to pay CobbFendley within 10 working days of receipt of payment from OWNER. 15. ADDITIONAL SERVICES Any services not included in the Scope of Services in this proposal shall be provided by. CobbFendley, when specifically authorized in writing by the CITY, on a per diem and expense basis in accordance with the attached Rate Schedule. A copy of our 'Supplement to Original Agreement' is attached. Mr. Steve Gillett November 4, 2010 Page 4 of 7 Attachment A Scope of Services THE PROJECT Eiiiiiiii CobbFendley The Concrete Street Program envisions replacement of existing asphalt and concrete streets in an area bounded by Main Street, South Broadway, Fairmont Parkway and SH 146. The neighborhood is well established, has a grid -pattern layout, and is drained by a system of open and closed storm sewers. There are currently several concrete curb and gutter streets with storm sewers that were constructed in the 1960's. The project goal is to determine the engineering, planning, and construction costs associated with phased construction of curbed concrete streets and associated storm sewers. It is anticipated that the Program will develop a strategy to install a "backbone" drainage system, with streets and associated storm sewers to be constructed in phases. The Project shall consist of preparation of a Study that will examine and recommend changes to the existing drainage infrastructure, including a "backbone" storm sewer outfall that will accommodate a five (5) year storm event for full development of the area, examine and recommended changes to the existing grid pattern, and provide for a cost estimate to construct recommended improvements to be phased over a number of years. SCOPE OF SERVICES Upon receiving the City's authorization, CobbFendley will proceed with the project as described below. The City reserves the right to modify the scope as needed to accomplish the project goals, with an equitabldadjustment of the compensation to CobbFendley. Map current watershed using ESRI format and identify supplemental surveying. We will gather available data and compile it in .Shp format (ESRI or GIS) to form a working base �o map for the project. The available LIDAR ground mapping compiled for the'last FIRM we tl�7 remapping, called the TSARP project, contains elevation data. Also readily available are aerial photography, floodplain data, city utility mapping, an earlier city drainage master plan, and other utility mapping. 2. Supplemental survey. There may be critical areas where having the flowline elevations CGS or sizes of existing culverts, the bottom of the bayou, the upper end of the study area, sanitary sewers, etc may be required. The City's older Drainage Master Plan will be relatto of field survey. current Fu I cconstru ton elevations project level topographic survey should minimize uld be done t near the point in time that a portion of the work would be constructed. 3�Review existing engineering standards and recommend changes. The City's published engineering standards are similar to those used by the City of Houston and other �. surrounding entities. We will suggest any improvements, primarily in storm sewer Ul Pop1 design criteria, that may be in the City's interest. D:OocsTroposaMSmall Proposals\2010Ua Porte\Concrete Street Prograndoc !i Mr. Steve Gillett April 20, 2010 Page 5 of 7 nag CobbFendley 4. Perform assessment of current drainage and flood control conditions and issues. The project will outfall into Little Cedar Bayou, which is under the management of the Hams County Flood Control District (HCFCD). There is some existing flood plain in the area caused by either an inadequate channel or storm surge from the Bay. This will be examined and explained in the report. The City is currently engaged in the development of a detention basin on this channel upstream of SH146. The study which supported that work will be incorporated into this effort. HCFCD will want to be assured that the project will cause no objectionable downstream impacts. There will be from one to four outfalls, but it is likely that the final system will use Little Cedar Bayou and its -tributary for most or all outfall. Specific tasks include: a. Compute design runoff values using the city's engineering standards (and any suggested revisions), for storm sewer sizing. System design criteria will at a minimum provide for no structural flooding in a 100yr return interval rainfall event. b. Examine impacts to receiving stream water levels caused by improving the efficiency of the watershed by providing faster runoff with the storm sewer system. Harris County Flood Control has developed a set procedure for analyzing such impacts and mitigating them through the use of detention ponds, inline storage, or other such detention techniques. This examination will be presented as an impact analysis as required for future plan approval by HCFCD. c. Examine the use of storm water detention in some of the existing rights of way within the project area. d. Examine the effect of the City's new detention basin west of SH146 on the water levels in the bayou when combined with the proposed storm sewers. e. Examine the possibility of mitigating the project via changes in Little Cedar Bayou. The mapped floodplains in the bay area are often the result of projected tropical storm flooding, not riverine flooding from storm runoff. An investigation of the impact of increased runoff on the bayou's peak water level may reveal that the actual area of impact is small enough that dNannel improvements may be sufficient to mitigate the change in runoff. Or, the new detention basin may retard the peak flow in the bayou to allow the peak from the stone -sewer -served area to exit to the bay ahead of the main peak. There is a channel in the 3rd St right of way that may benefit from improvement. Also, the portion of the bayou from SH 146 to the City's wastewater plant is an improved channel, and might benefit from some further work. The section below that point is natural, and may be adequate to accommodate the change in flow. The offsetting considerations here would be the cost of providing detention storage vs. the cost of any channel improvements and permitting as administered by the US Army Corps of Engineers. 5. Propose recommenoeo Improvements to provlae wi unG ur 111— nuirn OLU,,,, Q�VV�I� and outfalls for initial construction. Develop an outline storm sewer plan. Lay out a proposed plan that minimizes interferences with other existing utilities. Provide for coverage of entire study area and strive to arrange lines to minimize sewer cost. 6. Propose recommended improvements to provide for the construction of concrete curb and gutter streets with associated storm sewer Improvements to be connected to the trunk storm sewer(s). Examine existing grid pattern of streets and recommend changes that will reduce the paving footprint for future maintenance. Eliminating any street paving would entail clearing that block of any need for property access, or providing an D:\Docs\Proposals\SmaII Proposals\2010\1-a Porte\Concrete Street Prograndoc Mr. Steve Gillett ■. CobbFendley April 20, 2010 ®°e� Page 6 of 7 alternative low -traffic solution. Identify all such lightly used blocks and discuss the options with the City. Future reuse of the land (if not part of the drainage solution) can be undertaken as a separate public improvement. 7. Identify collectors to provide for efficient traffic flow. Some of the streets may carry more traffic than others, may provide direct through routes (such as "A", "B", and "G" Streets), or may have adjacent commercial uses. Consideration will be given to the need for on - street parking in commercial or multifamily areas. In such areas, wider collector street paving needs to be employed. Q will be coordinated with the City's funding ability. The size of each phase 9. Prepare a schematic plan of the proposed storm sewers paving and sidewalks showing phase limits. Show the phased implementation of the program, coordinated with the cost estimate. Incremental construction of storm sewers will begin at the outfall (or lower end) and progress upstream. The paving can be added at the same time as storm sewer construction or in a later phase, depending on available funding. The plan will not be to the level of detail of construction plans, but will show enough that city planning personnel can have a record of the proposed system so that the needed routes are preserved. 10. Prepare and publish a report summarizing the work completed, to be titled "2010 Concrete Street Program for the City of La Porte". This would conclude the Basic Services of the Study. Any required work beyond the Basic A Services would be considered as Additional Services as described in the sections describing compensation. COMPENSATION: The compensation to be paid to CobbFendley for providing the described engineering services will be as follows: 1. GIS Mapping.......................................................................................................... $6,500 2. Supplemental Survey...........................................................................................$10,000 3. Standards Review..................................................................................................$4,000 4. Outfall Impact considerations............................................................................... $49,000 5. Storm Sewer Plan.................................................................................................. $8,000 6. Street Paving Plan................................................................................................. $5,000 7. Phasing Plan and Estimate.................................................................................... $7,000 8. Report................................................................................................................... $8,000 D:Oocs\ProposaW,Sma11 Proposalst201011-a Porte\Concrete Street Program.doc Mr. Steve Gillett - CobbFendley April 20, 2010 o■aas Page 7 of 7 Reimbursable Expenses, Reproduction, mileage, delivery charges, etc. (estimated budget, charges at cost plus 10% administration charge) $1,500 TOTALBUDGET...................................................................................................$99,000 SCHEDULE OF SERVICES CobbFendley is authorized to begin work on this project immediately upon receipt of City's signature on this Authorization. CobbFendley will use reasonable efforts to complete the plan and report within 180-days-of=the notice to proceed. ADDITIONAL SERVICES Additional elements of engineering service may become desirable or necessary during the course of the project. These items, when specifically agreed to in writing by the City and CobbFendley, will be invoiced at direct personnel expense times a multiplier of 2.4 as defined in the "Provisions of the Authorization for Professional Services". Additional Services may include such things as: • Providing the services of a landscape designer or land planning function. • Design level project documents. • Construction Surveying or Staking. • Construction period inspection or site visitation services. • Materials testing services • Services rendered in resolution of extensive claims by Contractor or Cito • Comprehensive review of Bidder Qualifications DADocs\Proposals\Small Proposals\2010\1a Porte\Concrete Street Program.doc City of La Porte, Texas Report for: Concrete Street Program Study CobbFendley Project No. 1012-056-00 JULY 2011 Submitted By: CobbFendley Texas Registration No. 274 Civil Engineering • Construction Management • GIS/CADD • Land Development • Land Surveying Municipal • Right -of -Way • Site Development • Subsurface Utility Engineering Hydraulics/Hydrology • Telecommunications • Transportation • Utility Coordination 13430 Northwest Freeway, Suits 1100 1 Houston, Texas 77040 1. Voice (713) 462-3242 I. Fax (713) 462-3262 1 www.colowendiey.com City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 Table of Contents Pe. # ExecutiveSummary ..........................................................................................3 Authorization.....................................................................................................4 ProjectOverview...............................................................................................4 DrainageDesign..............................................................................................4 Description...........................................................................................................5 ExistingCondition................................................................................................5 ProposedCondition................................................................................................................6 Pavement Improvements/Pavement Area Reduction.................................................8 ExistingRights-of-Way...................................................................................................................8 ExistingRoadway Sections.....................................................................................8 ExistingOn -street Parking.....................................................................................8 Existing Pavement Area.........................................................................................................9 Findings and Recommendations...........................................................................9 ProposedRights-of-Way......................................................................................9 Proposed Roadway Sections..................................................................................9 PotentialSavings.....................................................................................................10 Proposed On -Street Parking..................................................................................10 Proposed Pavement Area Reduction.......................................................................I 1 Overland Flow Conveyance....................................................................................12 ConstructionCost..........................................................................................12 ConstructionPhasing......................................................................................1 4 Approach...........................................................................................................14 PhaseI.........................................................................................................14 Phase2........................................................................................................................15 Phase3......................................................................................................................15 Phase4.........................................................................................................15 Phase5........................................................................................................15 Phase6.........................................................................................................16 City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 Phase7........................................................................................................16 Phase8......................................................................................................................16 Phase9........................................................................................................16 Phase10.................................................................................................................17 Phase 11 and Greater........................................................................................17 Conclusion.....................................................................................................18 Exhibits VicinityMap..........................................................................................Exhibit 1 Project Area Map....................................................................................Exhibit 2 Flood Insurance Rate Map..........................................................................Exhibit 3 Existing Condition Drainage Area Map .......................................................... Exhibit 4 --' Proposed Condition Drainage Area Map........................................................Exhibit 5 Existing Concrete Street Plan...................................................................... Exhibit 6 Land Use Map and Parking Provisions...........................................................Exhibit 7 Proposed Concrete Street Paving Plan............................................................Exhibit 8 Pavement Reduction Plan, Option "A", One-way...............................................Exhibit 9 Pavement Reduction Plan, Option "B", Mid -Block Bollards.................................Exhibit 10 Proposed Overland Relief Directional Flow Map ..............................................Exhibit Phasing Plan, Phases I to 10..........................................................................Exhibit 12 Phasing Plan, Phases I I to End...................................................................Exhibit 13 Proposed Yd Street Trunk Sewer and Potential Conflicts......................................Exhibit 14 Appendix A — Project Cost Estimates Cost Estimate I — Overall Construction, Engineering, Surveying, and Contingencies .... Pg. I of I Cost Estimate 2 — Overall Construction and Phases I to 4.....................................Pg. I of 2 Cost Estimate 2 — Overall Construction and Phases 5 to 10....................................Pg. 2 of 2 Cost Estimate 3 — Overall Construction and Pavement Reduction Options..................Pg. I of Appendix B — Drivable Grass Brochure -2- City of La Porte CobbFendley Concrete Street Proeram Study July 21 2011 EXECUTIVE SUMMARY The City of La Porte (City) awarded Cobb Fendley Associates, Inc. (CobbFendley) the contract to perform this Concrete Street Proeram Study (Study) on December 13, 2010. Its purpose was to determine the engineering and construction costs associated with the phased construction of concrete streets with curb and gutter, and their associated storm sewers for all streets within the area bounded by West Main Street to the north, South Broadway to the east, Fairmont Parkway to the south, and State Highway 146 to the west. It would identify streets that are candidate collectors to improve access, traffic flow and pedestrian movement. It would also identify existing low -volume streets or street segments that are candidates for abandonment or re - purposing as future public improvements. A comprehensive drainage study entitled 2010 Concrete Street Program for the City of La Porte Drainage Study and dated May 2011 was prepared by CobbFendley under separate cover for this Study. The proposed drainage plan satisfies City requirements and will serve as the storm water master plan for the project area. It will use the four existing outfalls while replacing roadside ditches and driveway culverts with inlets, underground storm sewer networks, and concrete streets with curb and gutter. Also, to the extent possible, it will use existing available storm sewer systems. CobbFendley recommends widening the pavement of South 3rd Street and South 8th Street (a Harris County road) to serve as the two north -south collectors and West A Street and West G Street to serve as the two east -west collectors, all with 8 ft. to 10 ft. wide sidewalks on both sides; widening the streets narrower than 28 ft. to 28 ft. with 5 ft. wide sidewalks on both sides; and widening streets wider than 28 ft. to 36 ft. with oversized sidewalks on both sides. Based on available information, no additional rights -of -way are necessary at this time. Four east -west streets that do not serve as significant transportation connectors between South 8" Street and South Broadway were identified for pavement area reduction: West C Street, West D Street, West E Street and West F Street. Two options to reduce their pavement area are identified in this Study. The first ten construction phases identified in this Study place a priority on the construction of the storm sewer outfall structures, trunk storm sewer systems and the two north -south and two east -west collector roadway sections. Subsequent phases (15 to 20) complete the storm sewer system networks and street pavement improvements throughout the project area. For planning purposes, the budget for each construction phase defined herein has been held to approximately $1.5M: an amount which the City agreed is feasible on an annual basis. The composition and sequence of the construction phases are for planning purposes only. The City may reorder, sub- divide, combine or eliminate a phase or phases, or exclude or supplement the improvements within a phase or phases as available funding permits. The total estimated engineering and construction cost for the all of the phases associated with this Study is $42.3M. -3- City of La Porte CobbFendley Concrete Street Program Study July 21, 2011 AUTHORIZATION The City of La Porte (City) awarded Cobb Fendley Associates, Inc. (CobbFendley) the contract to perform the Concrete Street Program Study (Study) on December 13, 2010. The City authorized CobbFendley to proceed with the work by letter dated December 21, 2010. PROJECT OVERVIEW The Study was identified during a City Council retreat held in the summer of 2010. Its purpose would be to determine the engineering and construction costs associated with the phased construction of concrete streets with curb and gutter, and their associated storm sewers for all streets within the area bounded by West Main Street to the north, South Broadway to the east, Fairmont Parkway to the south, and State Highway 146 to the west (see Exhibit 1). The Study would develop and present a Phased Construction Plan (Plan) for storm sewer systems to replace the existing combination drainage systems comprising roadside ditches, driveway culverts and storm sewers. Construction of the "backbone" or trunk storm sewer systems would be accomplished in the Plan's early phases. Subsequent phases would include construction of the storm sewer systems' networks. Existing roadways, which would be demolished to facilitate construction of the storm sewer systems, would be replaced with concrete streets with curb and gutter. The final phases of the Plan would include replacement of the remainder of the project area's existing roadways with concrete streets with curb and gutter. The Study would identify streets that are candidate collectors to improve access, traffic Flow and pedestrian movement. Throughout the project area consideration would be given to the need to preserve or provide on -street parking to serve existing residents and businesses. The Study would identify existing low -volume streets or street segments that are candidates for abandonment or re -purposing as future public improvements. DRAINAGE DESIGN The complete drainage study associated with this project was prepared by CobbFendley. It is presented under separate cover in a report entitled: 2010 Concrete Street Program for the City o[ La Porte - Drainage Study Dated May 2011, the Drainage Study is currently under review by the Harris County Flood Control District (HCFCD). Pertinent findings, analyses and recommendations from the Drainage Study are included herein for the reader's convenience. The Drainage Study investigates, analyzes and recommends changes to the project area's existing drainage infrastructure; including a trunk storm sewer network. This proposed trunk storm sewer network is designed to accommodate a 5-year storm event for full development of the project area. Drainage objectives included: -4- City of La Porte CobbFendley Concrete Street Program Study July 21, 2011 Analyzing the existing hydrologic and hydraulic conditions within project area to quantify the amount of flow in the existing condition; Creating a proposed overall storm sewer plan for the project area which provides conveyance capacity for the 5-year design storm event; and Addressing any impacts associated with the proposed improvements. Description The project area is located entirely within the City of La Porte, Harris County, Texas (see Exhibit 2). The total land area represented is approximately 282 acres (0.44 square miles). The land generally slopes southward at an average of 0.2% slope. Elevations range from 20 feet in the northern region to 14 feet in the southern region. South 5 s Street serves as the drainage divide in the east -west direction. Land use along the project area's perimeter, including West Main Street, South Broadway Street, Fairmont Parkway and South 8's Street, is general commercial (GC); whereas the majority of the remainder of the project area is low density residential (R-1), with the most lots less than acre in area. The project area is served by HCFCD Unit No. F216-00-00 (Little Cedar Bayou), and its tributary F216-04-00. Little Cedar Bayou has been studied by the Federal Emergency Management Agency (FEMA) and has been issued a Flood Insurance Rate Map (FIRM) depicting base flood elevations and the limits of the 100-year floodplain (see Exhibit 3). Existing Condition The existing drainage area boundaries were determined based on overland sheet flow patterns, parcel boundaries, and existing storm sewers. Overland flow patterns were based on available LiDAR data and known channel configurations. Drainage lines and catchment boundaries were delineated using ArcHydro (an extension application of ArcGIS by ESRI). Based on this information, the project area in the existing condition was divided into four separate drainage systems. The existing condition drainage area map can be seen in Exhibit 4. System A serves the northern one-third portion of the project area from West A Street to West D Street and South 8 s Street to South I" Street; draining approximately 107 acres. The storm system comprises roadside ditches and driveway culverts, with storm sewer trunk lines running south along South 4th Street and west along West D Street. This system discharges into a grass -lined ditch to the west of South 8th Street, flowing off -site into a 6-11. x 6-ft. box culvert beneath SH 146. The system is currently less than a 2-year design capacity. 5- City of La CobbFendley System B serves the central-westem portion of the project area from West E Street to West H Street and from South 8t° Street to South 5"Street; draining approximately 50 acres. The storm system comprises roadside ditches and driveway culverts which flow to the south and west. This system converges along West H Street and discharges west of South 8th Street into Little Cedar Bayou through both a 36-in. corrugated metal pipe and an 8-ft. overflow weir. The system is currently less than a 2-year design capacity. System C serves the southwestem portion of the project area from West H Street to Fairmont Parkway and from South 8" Street to South 5's Street; draining approximately 38 acres. The storm system comprises roadside ditches and driveway culverts, with storm sewers at some locations along West I Street, South 6th Street and Fairmont Parkway. The system flows into the Fairmont Parkway storm sewer which discharges to the west of South 8a' Street directly into Little Cedar Bayou through a 48-in. reinforced concrete pipe. The system is currently less than a 2-year design capacity. System D serves the southeastern one-third portion of the project area from West E Street to Fairmont Parkway and from South 4`s Street to South I" Street; draining approximately 81 acres. The storm system comprises roadside ditches and driveway culverts, with storm sewer trunk lines running south along South 2nd Street and South 4th Street. This system flows into the Fairmont Parkway storm sewer which converges at South 3`d Street and discharges into F216-04-00 through a 72-in. reinforced concrete pipe. The system is currently less than a 2- year design capacity. Proposed Condition The proposed drainage calculations were based on a 5-year design storm event as required by City drainage criteria. Flows were calculated using the rational formula. The runoff coefficient was determined by using values defined by the City drainage criteria. In areas where multiple land use types were present, weighted C-values were calculated. Rainfall intensities were based on the City's IDF curves. Times of Concentration for each drainage area were calculated from the hydraulic flow path in each drainage area using 0.5 fps for overland, 1.5 fps for drainage ditches and 3 fps for storm sewers. The proposed drainage area boundaries were designed to decrease the runoff volume from Systems A, B, and C to a volume less than or equal to the existing condition. This was accomplished by reducing the areas of these three drainage areas and re-routing the now from the orphaned areas into System D. In the proposed hydrologic model, there is an increase in imperviousness throughout the project area due to sidewalk and roadway City of La Porte CobbFendley Concrete Street Proeram Study July 21 2011 improvements. The total additional imperviousness was calculated for each drainage area, which translated into an increase of the runoff coefficient in the proposed model. The proposed drainage plan will serve as the storm water master plan for the project area. It will use the four existing outfalls while replacing roadside ditches and driveway culverts with inlets, underground storm sewer networks, and concrete streets with curb and gutter. Also; to the extent possible, the proposed drainage plan will use existing available storm sewer systems (see Exhibit 5). During future design phases of this program, alternate pipe shapes and slopes can be utilized to address cover issues or utility -related conflicts once a full topographic and utility survey is completed. However, based on a limited survey, some potential utility conflicts were identified along the South 3`a Street trunk sewer (see Exhibit 14). System A serves the northwestern portion of the project area from West A Street to West F Street and South 8" Street to South 6u' Street; draining approximately 68 acres. The storm system comprises pipes ranging from 24-in. to 60-in. The existing storm sewer (54-in. to 72-in.) in West D Street was retained since it can convey the design flow. This system will continue to discharge into a grass -lined ditch to the west of South 8th Street and flow off -site into a 6-fit. x 6-11. box culvert beneath SH 146. System B serves the central-westem portion of the project area from West F Street to West H Street and from South 8'h Street to South 5 " Street; draining approximately 28 acres. The storm system comprises pipes ranging from 30-in. to. 78-in. This system converges along West H Street and will discharge west of South 8th Street into Little Cedar Bayou. System C serves the southwestern portion of the project area from West H Street to Fairmont Parkway and from South 8 s Street to South 5`h Street; draining approximately 27 acres. The storm system comprises 30-in. pipes. The existing storm sewers (24-in. to 48-in.) in West I Street, South 6a' Street, South 7 h Street, and Fairmont Parkway were retained since each can convey the design flow. This system converges along Fairmont Parkway and will continue to discharge to the west of South 8 s Street directly into Little Cedar Bayou through an existing 48-in. reinforced concrete pipe. System D serves the eastern half of the project area from West A Street to Fairmont Parkway and from South 5 s Street to South I" Street; draining approximately 165 acres. The storm system comprises pipes ranging from 24-in. to 120-in. This system flows into a proposed trunk sewer (48-in. to 114-in.) in South 3'u Street. The existing storm sewer (42-in. to 66-in.) in Fairmont Parkway was retained since it can convey the design flow. This system converges in Fairmont Parkway at South 3`d Street and will continue to discharge into 1`216-04- 00 through a proposed 120-in. reinforced concrete pipe. -7- City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 Although the proposed System D has a significant increase in flow from the existing condition, this increase is allowable per the City's design criteria because the outfall is downstream of SH 146, in close proximity to Galveston Bay: there are no homes or businesses downstream to impact. Also, it is important to note that the increased flow from the proposed improvements will not result in a change to the FEMA effective 100-year floodplain. The 100-year floodplain for this area is based upon a coastal flooding elevation of 12.5 feet and is not directly related to riverine flooding. PAVEMENT IMPROVEMENTS/PAVEMENT AREA REDUCTION Existing Rights -of -Way All of the streets within the project area have 60-11. wide rights -of -way except South 3'd Street, South 8s Street, West B Street, West D Street, West F Street and West H Street which have 80-ft. wide rights -of -way. Note that South 8 h Street is a Harris County road. Infrastructure improvements within this right-of-way must be coordinated with the Harris County Public Infrastructure Department —Architecture and Engineering Division and Harris County Precinct Two. Existing Roadway Sections The majority of the existing roadway sections within the project area comprise 20-11. wide, two-lane, two-way asphalt -paved roads with roadside, open -ditch drainage systems. Several have roadway sections comprising 36-ft. wide, two-lane, two-way asphalt -paved roads with roadside, open -ditch drainage systems. These include: • South I5' Street from West Main Street to West B Street; • South 2`d Street from West Main to South D Street; • West A Street from South 3'd Street to South Broadway Street; and • West G Street from South 4's Street to South Broadway Street. There are also several roadway sections comprising concrete streets with curb and gutter and closed -conduit storm sewer systems (see Exhibit 6). These include: South 4`" Street from West A Street to West H Street; West D Street from South 6 s Street to South Broadway Street; and West G Street from South 4 s Street to South Broadway Street. Existing On -Street Parking As mentioned above, land use along the project area's perimeter is general commercial, and its interior is primarily low density residential. Many of the businesses in the commercial areas have insufficient off-street parking capacity. This shortfall is supplemented by existing City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 on -street parking] along West Main Street, South Broadway Street, Fairmont Parkway and South 8 s Street and the streets or alleys behind and parallel to these streets. Within the project area's low density residential interior there are both institutional and multi -family uses including, but not limited to churches at both the South I' Street - West B Street intersection and South 7 h Street - West C Street intersection, and apartments near the South Is' Street - West G Street intersection and South 6a' Street - Fairmont Parkway intersection. As in the commercial areas, insufficient off-street parking for these facilities is supplemented by existing on -street parking capacity (see Exhibit 7). Existing Pavement Area There are several existing streets and street segments within the interior of the project area that appear to have low traffic volumes. These can be reconstructed using narrower width pavement, restriped, resigned, realigned, partially or wholly abandoned, or any feasible combination thereof to reduce pavement area, reduce traffic volume, reduce future pavement maintenance costs, be re -purposed as a public improvement, or combination. FINDINGS AND RECOMMENDATIONS Proposed Rights -of -Way Based on available information and given the schematic nature of this Study, no additional rights -of -way are foreseen as necessary at this time. Proposed Roadway Sections This Study was commissioned for the purpose of determining the feasibility and cost to reconstruct all of the roadway sections within the project area from asphalt with open ditch drainage to concrete (6 in. and 7 in. thick with curb and gutter) with storm sewer drainage. The recommended roadway sections fall into one of three categories as follows: Streets narrower than 28 ft. shall be widened to 28 ft. with 5 ft. wide sidewalks on both sides; Streets wider than 28 ft. shall be widened to 36 ft. with oversized sidewalks on both sides; and Two east -west streets and two north -south streets shall be widened to 36 ft. to serve as traffic collectors between the four perimeter streets, provide more traffic connectivity, and provide more on -street parking capacity. Oversized sidewalks are recommended on both sides of these streets to better facilitate pedestrian Flow. ' An area designated for or where parallel (or head -in) vehicle parking is permitted usually along the curb lane(s) of a curbed street, or along the edge of pavement or unpaved shoulder (or combination) of an un-curbed street. In all cases the parking occurs within the limits of the street's right-of-way. NOR City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 These sidewalks can be provided in place of what was previously the unusable area for the roadside drainage ditches. CobbFendley recommends widening the pavement of South 3'u Street and South 8ei Street to serve as the project area's two north -south collectors. Additional reasons include: The rights -of -way of both streets are 80 ft.; South Yd Street is the location for the System D trunk storm sewer system; South 8 s Street is a Harris County roadway and cost sharing opportunities may be available to the City. In coordinating with Harris County, the City should note that the total construction cost (in three separate phases) is estimated at $3.2M per this Study. CobbFendley recommends widening the pavement of West A Street and West G Street to serve as the project area's two east -west collectors. Additional reasons include: • Additional on -street parking capacity one block south of and parallel to West Main Street will benefit the West Main Street businesses; • A portion of West G Street is already 36 ft. wide concrete pavement with curb and gutter; • West G Street extends the full width of the project area from the northbound frontage road of SH 146 to South Broadway; and • There is an existing traffic signal at the West G Street — South Broadway intersection to contribute to the street's role as a collector. See Exhibit 8 Potential Savings The city could potentially realize some cost savings by preserving some of the existing concrete streets (See Exhibit 6) which have a total area of about 13,500 square yards. Although the existing concrete streets would likely require the intersections to be reconstructed with adequate drainage inlets, the City could potentially save up to $300,000 if at least 50% of the streets could be salvaged as determined on a phase -by -phase basis (not included in current cost estimate). Proposed On -Street Parking Any plan to reconstruct the existing streets in the project area, especially where reduced pavement area is a criterion, must address the preservation of existing on -street parking capacity. Using existing land use and available on -street parking, the following ratios were derived as a planning tool to assure that existing parking capacity is maintained. These are for reference only; actual ratios should be determined during final design: City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 • Low density residential (R-1): 20 sq. yd./acre • General commercial (GC): 55 sq. yd./acre - • (MS, MSO) Main Street (MS): 80 sq. yd./acre • Main Street Overlay (MSO): 80 sq. yd./acre Proposed Pavement Area Reduction The grid pattern of the existing interior streets facilitates opportunities to reduce the paving footprint that other layouts cannot. Four east -west streets that do not serve as significant transportation connectors between South 8 h Street and South Broadway were identified: West C Street, West D Street, West E Street and West F Street. Two options to reduce their pavement area were identified as follows: Option A This option consists of reconstructing the four streets' roadway sections to 12 ft. wide by 6 in. thick concrete pavement without curbs, with open ditch drainage systems, and rough -graded shoulders which allow ample width for on -street parking. This pavement area footprint will be less than the proposed 28 ft. wide pavement recommended in this Study. It will also be less than the existing width of approximately 20 ft. (see Exhibit 9). This option will save the City nearly $600,000 in capital costs (see Appendix A - Cost Estimate 3) and it could save the City up to 50% in maintenance costs because the paving area will be over 50% less than that proposed for the surrounding streets. Option B This option consists of erecting bollards at mid -block in the four streets to prohibit the Flow of east -west through traffic. Local residents would have access for parking, or other use. Each street would be signed "No Outlet" along South 3'u Street, South 41" Street, South 5u' Street, South 6's Street, South 7t' Street (with the exception of West D Street and West E Street), and South 8w Street (with the exception of West D Street and West E Street). These latter two bocks must remain open to provide residents access to the alley that connects West D Street and West E Street between South 7u' Street and South 81s Street. This option would allow seven, one-half blocks of pavement to be demolished leaving grass -covered rights -of -way for public use: there are no driveways on these half - blocks (see Exhibit 10). In considering the cost for this option, two pavement types were considered: concrete and "Drivable Grass", which is open -celled concrete pavers that allow grass to grow within the open cell (see Appendix B). Both pavement widths would be 20 ft. wide; however the concrete would be 6 in. thick and the pavers would be their manufactured height. The City of La Porte CobbFendley Concrete Street Pro -cram Study July 21, 2011 roadway section comprises the pavement without curbs, with open ditch drainage system, and rough -graded shoulders which allow ample width for on -street parking. The 20 ft. by 6 in. concrete pavement may save the city up to $280,000 in capital costs (see Appendix A — Cost Estimate 3) and it could save the City up to 50% in maintenance costs because the paving area will be less than that proposed for the surrounding streets and the mid -block bollards will eliminate thru traffic thus extending the life of the pavement. However, the "Drivable Grass" (see Appendix B) pavement type would be the most beneficial alternative for Option B because the City would essentially have grass -covered rights -of -way throughout the subject area that would be functional enough to accommodate parking needs, serve as an aesthetically pleasing park - type recreational area, and save the City approximately $440,000 in capital costs (see Appendix A — Cost Estimate 3). In any scenario which prevents or significantly reduces the volume of through -traffic on a roadway, whether by reduced pavement width, signing, striping, barriers, or other traffic calming measure(s), the City must consider the potential negative impacts to such services as public transportation, and police, fire, and emergency medical access. The City must also consider potential impacts to pedestrian safety and handicap accessibility. Overland Flow Conveyance Although the proposed plan transforms all the storm sewer systems from less than a 2-year design to a 5-year design, the proposed street elevations as constructed from one phase to another will also play an important role in the overall plan effectiveness. As the streets are constructed they will act as conveyance channels for overland Flow during large storm events, therefore it will be important for city staff to closely review the phased designs to make sure that they generally move storm water toward West D Street, West H Street, and South 3rd Street and their respective outfalls (see Exhibit 11). CONSTRUCTION COST The construction cost of the improvements associated with this Study (see Appendix A) are based on current bids from Harris County's Capital Projects' bid tabulations, Texas Department of Transportation's average low bid prices, and other construction bid information that CobbFendley has accumulated from the City of La Porte and other municipalities in the greater Houston area. The cost estimates included herein are as follows: • Cost Estimate I - Overall Construction, Engineering, Surveying, and Contingencies • Cost Estimate 2 - Overall Construction and Phases I-10 • Cost Estimate 3 - Overall Construction and Pavement Reduction Options The various categories in the estimates include: -12- City of La Porte CobbFendley Concrete Street Program Study July 21, 2011 • General (mobilization, traffic control etc.); • Paving; • Demolition; • Storm sewer system; • Miscellaneous utility (minimal sanitary sewer and water line adjustments); • Engineering and surveying; and • Contingency (20%). The contingency used in the overall cost estimate is considered reasonable and conservative for the schematic level design proposed in this Study. It increases the budget to account for known and unknown items that may be identified during preliminary and final design. Cost estimate items of additional interest: Improvements to existing channels may cost more than expected or additional channel improvements may be required. The impacts for the storm sewer outfalls near Fairmont Parkway, West H Street, West D Street, and the storm sewer upstream of the Arizona Ditch are considered to be mitigated by reducing the drainage areas to their respective outfalls. However, the drainage area for the South Yd Street outfall at Fairmont Parkway has been increased to relieve the impacts to the other outfalls. Therefore, an item for Channel Improvements Downstream ($250,000) has been included to make provision for channel improvements to the South Yd Street ditch downstream of the outfall adjacent to the wastewater treatment plant. Although the Drainage Study recommends improvements to the South 3rd Street ditch, it will alleviate the need for major improvements to the other outfall ditches. The channel improvements to the South 3rd Street ditch will most likely be in the form of an earthen or concrete -paved trapezoidal weir structure on top of the existing culvert adjacent to the wastewater treatment plant. However, the improvements could take the form of an additional culvert or the complete re -opening of the channel. The provision in the estimate for the channel improvements is based on the weir approach. The existing waterlines, especially the water services to the residences and businesses, could be shallow and require lowering to be compatible with the proposed street construction. This could create a major cost that exceeds the $400,000 in the Misc. Utility item. CobbFendley has a comprehensive list of bid items and unit costs based on a familiarity with construction project contracts in the City of La Porte; however construction prices can vary significantly over time. - 13 - City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 CONSTRUCTION PHASING For planning purposes, the budget for each construction phase defined herein has been held to approximately $1.5M: an amount which the City agreed is feasible on an annual basis. The composition and sequence of the construction phases are for planning purposes only. The City may reorder, sub -divide, combine or eliminate a phase or phases, or exclude or supplement the improvements within a phase or phases as available funding permits. Approach The construction phasing approach for the Study places an early priority on the construction of the storm sewer outfalI structures for System D (South 3'd Street beneath and south of Fairmont Parkway), and System B (West H Street from South 81' Street to Little Cedar Bayou). The next two phases simultaneously complete the construction of the System D trunk sewer and the reconstruction of South 3`d Street from West Main Street to Fairmont Parkway to a 36-ft. wide collector. Similarly, Phases 5 and 6 simultaneously complete the construction of the storm sewer improvements in and reconstruction of South 8`" Street from West Main Street to Fairmont Parkway to a 36-11. wide collector. Phases 7 through 10 complete the majority or all of the storm sewer and paving improvements in West A Street, West G Street, West H Street and South 7 h Street (see descriptions following and Exhibit 12). Phase I I and greater complete all of the remaining storm sewer and roadway improvements within the project area. Including Phase 11, approximately 15 to 20 additional phases are estimated (see Exhibit 13). Phase 1 • Construct the downstream channel improvements to F 126-04-00 • Construct the 120-in. storm sewer and outfall structure in line with South Yd Street from Fairmont Parkway south to F 126-04-00 • Construct 114-in. through 108-in. storm sewer in South 3'a Street from Fairmont Parkway to West H Street • Construct the 36-ft. wide pavement and other improvements in South 3`d Street from Fairmont Parkway to West H Street • Potential conflict with existing 18 in. sanitary sewer is likely resolved with a conflict manhole (see Exhibit 14) • Benefits: Completion of South 3rd Street outfall structure and downstream channel improvements to F126-04-00; extension of pavement and System D trunk sewer system improvements in South 3`a Street. 14- City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 Phase 2 • Construct the 78-in. storm sewer and outfall structure at Little Cedar Bayou in line with West H Street from the bayou to South 8's Street • Construct the 30-in. storm sewer in South 8's Street from Fairmont Parkway to West I Street • Construct the 54-in. storm sewer in South 8 ° Street from West H Street to West G Street • Construct paving and other improvements in South 8 s Street from Fairmont Parkway to West G Street and in South H Street west to the pavement limit • Benefits: Completion of the System B outfall to Little Cedar Bayou. Phase 3 • Construct the 108-in. through 84-in. storm sewer in South 3'd Street from West H Street to West D Street • Construct the 36-ft. wide pavement and other improvements in South 3`' Street from West H Street to West D Street • Potential conflict with existing 8 in. sanitary sewer is likely avoided (see Exhibit 14) • Benefits: Extension of pavement and System D trunk sewer in South Yd Street. Phase 4 • Construct the 72-in. through 48-in. storm sewer in South 3`d Street from West D Street to West A Street • Construct the 36-ft. wide pavement and other improvements in South 3`d Street from West D Street to West Main Street • Potential conflict with existing 8 in. sanitary sewer is likely avoided (see Exhibit 14) • Benefits: Completion of pavement and System D trunk sewer system improvements in South 3rd Street from Fairmont Parkway to West Main Street. Phase 5 • Construct the 48-in. through 24-in. storm sewer in South 8t° Street from West E Street to West A Street • Construct 36-ft. wide pavement and other improvements in South 8a' Street from West E Street to West Main Street • Benefits: Extension of pavement and completion of System A storm sewer in South 8 s Street. 15- City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 Phase 6 • Construct the 42-in. storm sewer in West G Street from South 80' Street to South 7d' Street • Construct 36-ft. wide pavement and other improvements in South 8d' Street from West G Street to West E Street • Construct 36-11. wide pavement and other improvements in West G Street from the northbound frontage road of SH 146 to South to 7d' Street • Benefits: Completion of pavement and System B storm sewer in South 8d' Street from Fairmont Parkway to West Main Street. Extension of pavement and System B storm sewer in West G Street. Phase 7 • Construct the 60-in. through 30-in. storm sewer in South 7d' Street from West E Street to West A Street • Construct the paving and other improvements in South 7th Street from West Main Street to West E Street. • Benefits: Extension of pavement and System A storm sewer in South 7d' Street Phase 8 • Construct the 24-in. through 36-in. storm sewers in West A Street from South 7d' Street to South 2"d Street • Construct the paving and other improvements in West A Street the northbound frontage road of SH 146 to South 2"d Street • Benefits: Extension of pavement and System A and System D storm sewer in West A Street Phase 9 • Construct the 30-in. storm sewer in West A Street from South 2"d Street to South I" Street • Construct the 30-in. storm sewer in West G street from South 3'd Street to South I$' Street • Construct the 42-in. through 30-in. storm sewer in West H Street from South 3`d Street to South I51 Street • Construct the paving and other improvements in West A Street from South 2"d Street to Broadway • Construct the paving and other improvements in West G Street from South Yd Street to Broadway City of La Porte CobbFendley Concrete Street Program Study July 21, 2011 Construct the paving and other improvements in West H Street from South 3`u Street to Broadway Benefits: Flood mitigation in the Repetitive Flooding Area northeast of the South I" Street -West H Street intersection; Completion of West A Street within the project limits Phase 10 • Construct the 42-in. through 30-in. storm sewer in West G Street from South 7" Street to South 3 u Street • Construct the 48-in. through 36-in. storm sewer in West H Street from South 8 h Street to South 6th Street • Construct the 36-ft. wide pavement and other improvements in West G Street from South 7's Street to South 3'" Street • Construct the paving and other improvements in West H Street from South 8`h Street to South 5t' Street • Benefits: Completion of West G Street within the project limits Phases lland Greater For planning purposes, the budget for each construction phase defined herein has been held to approximately $1.5M: an amount which the City agreed is feasible on an annual basis. The composition and sequence of the construction phases are for planning purposes only. The City may reorder, sub -divide, combine or eliminate a phase or phases, or exclude or supplement the improvements within a phase or phases as available funding permits. Exhibit 13 shows the remaining portions of the project that can be planned in the future based on the methodology of using the north -south and east -west streets to determine the project scope from year to year. The phases can generally be described as full -width roadway construction within the rights -of -way that consist of either five to six blocks in the north -south direction, seven to eight blocks in the east -west direction, or some combination thereof. Additionally, the City will have ten phases of similar construction to compare and use to modify the phasing approach described herein. In addition, the total number of 100 ft. stations (639) has been provided on the cost estimate which, when divided by the overall cost, provides an average of approximately $660 per linear foot for all engineering and construction costs associated with the improvements. As each construction phase commences, the City can check the actual cost per linear foot against this average. The City can also continually improve upon this average cost metric as a tool to make informed planning decisions over time and with respect to the ultimate build -out of the entire project area. 17- City of La Porte CobbFendley Concrete Street Proeram Study July 21, 2011 CONCLUSION This Study satisfies the City's scope of work by having: • Prepared schematic designs for four storm drainage systems in accordance with City requirements to serve the project area; • Examined existing rights -of -way widths of all the streets within the project area; • Identified two east -west streets (West A Street and West G Street) to serve as collectors between the northbound frontage road of SH 146 and South Broadway; • Identified two north -south streets (South 3rd Street and South 81' Street) to serve as collectors between West Main Street and Fairmont Parkway; • Identified four east -west streets that do not serve as significant transportation connectors between South 8th Street and South Broadway Street (West C Street, West D Street, West E Street and West F Street) and presented two schematic level options to reduce their pavement areas; • Developed ten priority phases each with a construction budget of approximately $1.5M to construct the storm sewer outfall structures, trunk storm sewer systems and the two north -south and two east -west collector roadway sections, and fifteen to twenty subsequent phases to complete the remaining storm sewer system networks and street pavement improvements throughout the project area; and • Prepared preliminary estimates for the engineering, surveying and construction costs associated with overall construction (including 20% contingency for the construction). Prepared construction cost estimates for the first ten priority phases and the pavement reduction options. -18- City of La Porte CobbFendley Concrete Street No Study July 21, 2011 EXHIBITS 1 11 0PORTER / ST vD a� �I / O 0 • , � � • • a 1 I u l e �li F�IiO����� ��. �I Porte . 11 10 � e • ��a+ l ra � — � . III• � �� � � � i �� s • r�i �lr a e. a ee ® 1 Pasadenlh Q A� fN�' Cedar B y LEGEND — HCFCD CHANNELS \: B a Y W n n�O /. � PROJECT LOCATION PROJECT LOCATION Galveston Bay EXHIBIT 1 :.aCobbFendley Teaaa RegiW fion No. U4 �I 156�0 NOMw Y, Salle 1108 Houston,Temaeaaa T1810 ww.coEfencom 71 JA620142 I hJOB JOB N0. 1012066 NO.. 10M66 e CITY OF LAPORTE A404=1p 02 LAPORTE, TEXAS CONCRETE STREET F300 00 00"�� PROGRAM STUDY VICINITY MAP F301-01-00 '--;UBMITTED: DESIGNED BY CA l ;TT RO PARK OR SCHLE 1"=4000' DRAW BY CE DATE NW11 SHEET N. 1 OF I SURVEY BY'. DNG. B NO z LEGEND x m MPDISON HCFCD CHANNELS a z- F s {` p — PROJECT LIMITS no _ - a� 2-FT CONTOURS -- It, 1t1 l�L .1 N.. _. TYLER I 9 TYLER N x o "e - m 9P 9c1 '/OZ P 'f• 4< O t ADAMS AOAMS p 2 0 4 y Jt A _ �TT MAIN ZL e!q p�Q1 'MAIN S,� a _ rat ,�i .. •-;+ 1 - 0 T' 'S }•i a'C I y t At . b t ,•- B f F. � O O 4 CD L O 2 L 4 - � � • ,{ � I ar-.i x �'�. ! - .. �'� 4Rti-� F .ate O��x ¢ v N �--, Tam y1. x•'.1 H 61'r� p v I f IR �. K K .. .. Q .�. •� EXHIBIT 2 lK Q 6 o GR°� •• CobbFendley L Texas Registration No. 294 1~lfA'�e I. O ' E- m QW 13430 Northwest Freeway Suite 1100 - , � c O = Houston Texas 7>O40 i��y 713.4623242 I fax 7 13.46Z3262 I snm cobfen.com Ae^'?✓�' a, O JEF},Fq 0 JOB NO. 1012056 CITY OF LAPORTE 'ell M .� e o sr<vgN LAPORTE TEXAS CONCRETE STREET GARDEN wALK s•� 6 PROGRAM STUDY _ v 09 K � ;r►.1��� y �.. w m PROJECT AREA MAP Nq?e SUBMITTED. DESIGNED BYCA �1' y3• A`. �::. SCALE. 1"=I" DRAwN BY CE F 1'� DATE'. NiB`tt SHEET Ho. 1 OF t n"•> SURVEY BY EXPORT DNG. ND'. �BNO i MA SON m � 2 MADISON 1 TYLE t \! ( Deer Creek) ADA S ,1. 'T fi 2 2 S S 2 ❑ ❑ r f:. P ZONE�X�060030 Jfi m ro 24, FOI K )H;. ^ POLK f gP`'S rJJ b 1 2 Z � z z L __ s �,. r W MAIN ST cam\ ZONE X P z i ZONE ZONE X E F N AE j -_A W A ST SS {j ib 060© i --- W B ST �' N 2 K d y�'I2 --r 1 c sT RI ?< c C sT� T a vr- y L n ZONE X 9: f2 s' vJ D ST PC, 7 ib W D STy L 9 rr F Y 9 E STREET W E ST e b Sf S� y UrH J w EST 4r ZONE X t\ 4,9 L. T2 _KgHsq SC¢ w w (CJ/Slu� 'y mac` ti os ✓ yL G /ill\ 0 FZ � /�/IL�111jNfwlMlll([*)\L� �G1 x a �2 MAP SCALE 1" = 1000' �o p.33 500 0 1000 2000 "0 FEET NE AE G- !EL 12) —\ l ` HJ d ONE VE R (EL 17) ZONE 06002 i w T ZONE AE i H ST AE w sr ZONEL12) VE m (EL 17) i w I sr � 060020 l 1 i PARKWAY LIMITS w r (' 13 v , 010300 F -ZONE AE Z O �60015 f- ( = ��° (EL12) ' % ZONE AE O ZONE =A2t6-o0.o0 (c r �� o = q `_ (EL 131 U Q - o (Lhtle Cedar _...i <h LL X LI I TI I T o "Bayou) �`7 �� ZONE VE ' ¢ I O Cf )Ali :� f j � l �, tEL 15) 2 } Rnvou �� 0 ZONE VE Q _ ;f -t' rEHs �� (EL 17) ,r f 7•'2/fr02 011.' N I ('ARM !F �' Q VA coves , 410NE AE/ ZONE X ZONE AE ._`���(EL 131_�13) PANEL 8815L - FIRM FLOOD INSURANCE RATE MAP HARRIS COUNTY, TEXAS AND INCORPORATED AREAS PANEL %5 OF 1150 IEEE MAP IND" FOR FIRM PANE- rAYOlR1 J>01f!! L1YIm ff MlMatB PaB. 9FHi NaEoman.. xw.r�♦k.r�ar..I...r+w rra r�...aM r rs•+•c w.,. wa..w a m..el.. -sraser MAP NUMBER 48201CO945L �F MAP REVISED: JUNE 18,2007 Padmil Pmage-y Maoagaoeat Agency EXHIBIT 3 s is an ollcial copy M e Gorton Mthe abore referencetl tlootl map. It extractetl using F MIT On Gne. This map does not refleol changes amendments which may he"e peen made sudeeou rnt to the date on the e dock. For the latest product nlormation about Nei onal Flood Insurance Norm Aood maps check the FEMA Flood Mao Store at www. msc lama. gc LEGEND EXISTING DRAINAGE AREA .�r1a n \a ; jX. r a - - 'r" BROADWAY _ Irt..- dhv :.. ., < _=EXISTING STORM SEWER O g N pp\N 4 :�,Yl HCFCD CHANNELS gyp; BROAD AY _ _ - FLOW DIRECTION p� \ r., I. Rd - - i , a ' ^ a _ 1N0. `^..;.-- ;! ~ T r•l�t SYSTEM 'p''.f _87.8'ACRES-'n . 3R Ar a r, ir 1 }r - �' " SYSTEM 'A' _ - 106.8 ACRES. r - 17 ^� K P - I # 4 s e - 11is `. � _: SYSTEM 'C' I, i�' SY-STEM Bg = —:� I 38.0 ACRES*' 9.7 ACRESt 4 f� , - ' TTH IF to IT np i (' TK STH - ...r sk ' -Nit - - � t BTM.rt one CobbFendley EXHIBIT 4 .•. r R _....f Q • IS :.. Texas RegiWabon No. n4 1]400 Nort. tn, Texas r. Sate 1100 Houston, Texas 110r0 1 • ' Kr a„ (' � i $ sd ]i1A6232I311ra BNO. 10IM www.coDren.com JOB NO 101f088 �v _ iso 1s'� �� CITY OF LAPORTE _ _ —'_ LAPORTE. TEXAS 1a6 CONCRETE STREET - -- - _ _ _ _ _ -1as — --- - - --- --- - — PROGRAM STUDY 146, 146 - EXISTING CONDITION DRAINAGE AREA MAP �., G F r4 ` ri ql a .fE. U r,, .. tR1n. iu Brt rvT� . r �— •, - � oEsicrvEo5Y ca i� n `r,.0 "r I 1 �t x .R • n ', .�' " 3 ❑n,E alaitSHEET No 1 of 1 C T1 t e„ r# ! 4+x . F -:Ki F216-00-C � � .' - SURVEY BY .r.... -_ : e p ♦. : .. I FBNO'. UKO. NO. z rH 16 _ •pg� LL 2ND YSTEM 'D' 65.5 ACRES rt SYSTEM 'A'AW 67.6 ACRES ' u 9 �q� 6TH - ra r [eft f ; - \. BROADWAY M i ° r R e, I �. SYSTEM 'E 27.9 ACRES Lr• BTH °� P. _ 146* -° - _ SH 146-SH 146;MAIN - • - 146 -- _ _ 146 _ _ - - — _ - 146 SH 146;MAIN 146 r - -- -146� _. - - SH f .;. �':. Z •� m,.d,iePM 6mrtirI ` w; -iar6 '� z_ � �� ar.;➢ � .a�:.rn, x S��,yrr nr�bm: +4a - ors inmrrls to tr+�' ��z W � �' Q m'\ � r r1r rwtrert r � e ill`216-00-00- r liTH e••. N 4i` _ i weads N Lu V (Amu �� f e • ...rl _. �CI� LEGEND _ PROPOSED DRAINAGE AREA x =e —EXISTING STORM SEWER y PROPOSED STORM SEWER YI ' I ; — HCFCD CHANNELS -►FLOW DIRECTION F21 pTL7 IYI Vt1�. r,Y 27.2 ACRES 7TH till. 1 EXHIBIT 5 I Texas Registrahon No 2 4 . 13400 Northwest Freeway Su Re 1100 Houston Texas rW 713.46132421 fax 71146232621..c.bfen. JOB NO. 10IM56 CITY OF LAPORTE LAPORTE, TEXAS CONCRETE STREET PROGRAM STUDY PROPOSED CONDITION DRAINAGE AREA MAP SUBMITTEDDESIGNED Be GA SCALE 1-=4W DRAM BY CE DATE. M15111 SHEET No.. 1 OF 1 SURVEY By DAG NO FBNO N�1� Ft a 4 a t` CONCRETE PAVING LEGEND �Q�' '�* x �� �1 1 1 n cam! �' A �- EXISTING - 8 i .. �%1C /'�» F A• ���. jr �.Og' � CONC STREETS Al r Av�dt II _ 41 n V�00 fu IF R i 6 _ 1 Yy` �� .. it } �_'S'?,-�F.''`t��@p - yam$` -. f- s1�+" `e� -+1�`.� "�- �#•��:- .'�$ lJ _ll "'1Y s •*7'i .�I F' r _�r.�1'.��, T>'.�- r - V r� ram, 4 �8 �'` ta• �1 r a e - ass ��4`. y S. 1 y41yq a- Ze 61 ffil'--r ,a EXHIBIT6 1 Mae CobbFenClley Texas Registration No. 274 wa 5 it - 13430 Northwest Fr e 1100 1§ea Y o il r .- h -_i _ �1. f ..�•+l �--�^ "'I - - f i�. `y `I�'+ •'�''1'' 713,462.32421Hfax 7134622 277040 1www.cobfen.com _ al o�xtoo, Texas JOB NO 1012056 CITY OF LAPORTE -,'1_ # R-- 5 1 _.._4 ♦ i LAPORTE, TEXAS f' v I e et�`� F iCONCRETE STREET Y J11PROGRAM STUDY EXISTING CONCRETE STREET PLAN ;•.i c.- r - -- -- _ - - - - -} - SUBNBiED: OESRtNED BY:HL SCALE 1-=400' ORARRI BY:HL �, ltlllMF\NIiNVF{ �t W'r', t Y` 1vr •• _ J✓ - - - _ a" f ,,, '. DAM 7/11/t t SHFFf No.: t a t ... R.. rJ.rya•, w wn -1 e 1 caaG-eh r i,, mx — _ - _ SURJEY BY W. NO: F 8 NO- ZONING LEGEND LOW DENSITY REST RESIDENTIAL (183.10 ACRES( t COMMERCIAL t w »� � I e_ ■ I c�c ' T' (114 B6 ACRES) - - - Ma STREET •- c At (MS MSO) N 8 MAIN STREET OVERLAY a (35.60 ACRES) ` ZONED USE PARKING PROVISIONS rt � Max (R-1) LOW DENSITY RESIDENTIAL 3,700 SY (20 SYIAC) (GC)GENERAL COMMERCIAL 6�SY a (55 SY/AC) (MS,MSO) MAIN STREET _ B MAIN STREET OVERLAY 2,900S1 - (00SWAC) NOTE. THE OUANTIFTES PROVIDED ARE BASED SOLELY ON THE EXISTING _ CONDITIONS ROUNDED TO NEAREST 100 - SY AND HAVE BEEN USED IN THE COST ESTIMATE FOR BUDGET PLANNING PURPOSES. EXHIBIT 7 CobbFendley Texas Regis"b. No. 274 13430 Northwest Freeway, Suite 1100 Houston, Taxes 77040 - 1462.3242 1 tax 713.462.3262 1 w .wbten mm JOB NO. 1012055 CITY OF LAPORTE leLAPORTEJEXAS CONCRETE STREET PROGRAM STUDY LAND USE MAP & PARKING PROVISIONS - SUBMI17M DESIGNED mm00 -' - SUIE:1"-4• DWM B'.HL DAM7/11/11 BMW 1a_ 1 a 1 tIBO W. SUREY SY: - FBNO:IIIIIIIIIIIIIF h grg � V ` � 1 I wi ' 7�1 g= =-=- T -� F tat r 4\ r a , Now mow•' = 1 CONCRETE PAVING LEGEND 36 FT. WIDE WITH (2) 8SIDEWALKS 36 FT. WIDE WITH (1) 8' SIDEWALK (1) 10' SIDEWALK 28 FT. WIDE WITH (2) S SIDEWALKS NOTES: 7-PAVEMENT THICKNESS SHALL BE T INCH MIN. FOR 36 FT. WIDE PAVEMENT AND 61NCH MIN. FOR 28 FT. WIDE PAVEMENT. 2. ALL ROADSIDE PARKING AREA FOR MULTIFAMILY AND COMMERCIAL USES SHALL SE ACCOMMODATED FOR AS EACH PHASE IS PREPARED FOR CONSTRUCTION. 3. THE ROW WIDTH IB N FT. FOR T-, 9^.'F','H'. '3RD'. AND ^STH^ STREET. THE ROW WIDTH FOR ALL OTHER STREETS IS W FT. EXHIBIT 8 a: CobbFendley Texas Reglst2tion No. 274 13430 Nodhwest Freeway, Suite 1100 Houston, Texas 72040 713462 32421 fax 713,462,32621 www.CoWenoom JOB NO. 10120W CITY OF LAPORTE LAPORTE, TEXAS CONCRETE STREET PROGRAM STUDY PROPOSED CONCRETE STREET PAVING PLAN SUBMITTEI: DESIOtED ln:M SOME I'— ' DIUW W-.K DATE 7/11/11 SHEEf Re, 1 OF 1 SDR+EY BY: M NO: ,x ... (� , sue+--'• � — — C Nw LNSC HIM VT -r A 444 R ., i tler R pp ��II • R a A a� _ �• I I U�r-"t� Two - 4 I ONE a P - PAVEMENT REDUCTION AREA WAY ' P •� _- -� • tii , - Y`T-t+: e yt\• `-,.,fi. • �qI - 1i P Q4\' ' J `_ l - _. a e,. -� c .ey=yxy lnnx • P n .e.'"' mm uH T � � .._.. LEGEND 12 FT. WIDE STREET WITH (2)5 SIDEWALK PROPOSED DIRECTION FOR STREET TRAFFIC NOTES 7-PAVEMENT REDUCTION 01 -Al CONSISTS OF CONSTRUCTING (•) ONE-WAY STREETS TO INCLUDE'. STREETS'C' V F AND ill BETNEEN MD AND 8TH STREET, THE PROPOSED STREETS FOR THIS OPTION ARE TO BE 12 FT. WIDE. 8INCH THICK CURELESS. AND RWGH-GRADED BErONc THE EDGE OF PAVEMENT IN A MANNER SMILAR TO THE EXISTING CONDTTICNS TO ALLOW AMPLE SHOULDER PARKING EXHIBIT 9 1 Texas Registratlon No. 274 13430 Northwest Freewery. Suite 1100 Houstoo, Texas 77040 713.462.3242 1 tax 713.462.3262 1 wvw.wbfen.com JOB No iD120% CITY OF LAPORTE LAPORTE, TEXAS CONCRETE STREET PROGRAM STUDY PAVEMENT REDUCTION PLAN OPTION "A", ONE-WAY SU9RTIM 7DENG. M 6f:NL SCALE 1"-400' EnCHL DATE 7/11/11 No. 1 K 1 SURVEY IN: NO: F0NO. }-- LEGEND 4-> �! 28 FT WIDE STREET ",ft y . r Y t.! s _.. r - - , .... -u •'a �I i e��::_,.� WITH (2) S SIDEWALKS — 'E"'. �!'• A 1 i ' axRs ` -i �i T, _ _. �` 20R WIDE CONCRETE STREET OR DRIVABLE •"q �' �+ : I n ., r ' °4 ., f sue+ GRASS (see APPENDIX B) WITH(2)6 SIDEWALK GRASS STREETAREA y` �i�s- •� r ,. v. " —�_ f t:t -! _ (NO EXISTING RESIDENTIAL DRIVES) MID-BLOCKSOLLARDS - 'F rig TV All e■�.q -t s� y�a_� it •I 491� \s_-nt `� V") y - - NOTES f� Tr ! i �.11 ! t. PAVEMENT REDUCTION ofnloN'B•CONSISTS OF I GONaIRUCTMG MIp BLIX:N BOLLARDS TO r A _ PROHIBIT TXRU RUFFIL ON THE FOLLOWING �.., n- -T-A 1 i t. STREETS. •C• •D• •E' AND I BETWEEN 3RD AND BLO'A THEETREETBNSOFTHE AND ST ON SETS. THE SE TH FOR BTH STREETS. THE PROPOSED BTRE5 IN FOR THIS RIBLES ARE TO SE 211 FT IDE B INCH )A}. ` TXICK, CURBLESS,AND AOUGNGRAOED BEYOND 'L y a la �, ']'4 f;'„.. '• T• THE EDGE OF PAVEMENT IN A MANNER SIMILAR y ,.._- r' P. ♦♦ 'f "11�` - e M' ! �1• �1 ,.'T , �.. SHOULDER PARKING AND TWOWAKLFAFFIC E IrS I BOLLARDS (TYP.) i .I IE IF - - � lb ( --44 EXHIBIT 10 i77 n �� -� - _ IS CobbFendley Texas ast F a R No. D4 , T3630 Nortlston, Texas 77 Suite 1100 I� - F e>• _ ! �� - 3.462.32 cobten.co I Houston, Texas 7]040 I -.:_ I � � ^;._a'E( aM �gy� ��` ]t 42fax ]T3.462.32621 www m I a '� -,• _. 1 - _ �4 JOB NO T012058 R. PAVEMENT REDUCTION AREA I r CITY OF LAPORTE AMID —BLOCK BOLLARDS _ f T �•� � i , �`� LAPORTE, TEXAS I .� e.2 _ _,t t- - .�"FFRr`, '•ter /, Ix, e at :: CONCRETE STREET m. Z'pi, • 4 c , . �p�► l , / "F PROGRAM STUDY 10 e PAVEMENT REDUCTION PLAN - - _ - - - - OPTION -B', MID -BLOCK BOLLARDS . - - _- - - -- SUBIINFa Br:NL -� - - �, v. •- c. ' �� - - _ _ _ - __ _ _ - - SrA :'-400• slEcr Ile.: 1 OF 1 SURVEY O BY-. FDWG ND.. LEGEND , 1 pp y .+. • y $ . I Ak + _.. _ PVMT. CL. V = 4 a o'�' y `-rz ''�: � ��...-gyp t�-''i�� F•'. F PVM'T. CL. lL V. d. ,7 _ ems•_. _— — — -Ya%TF ww ry ji �° fff PVMT. CL. VMT. 9 0 Tt. --.. _del (( — PVMT. CL. P MT. .L. V. = 4. — LOWLINE ELEV. z Q7' 7A a e x: J' •f VMT. CL. V. = 1 EXISTING STORM SEWER — — — PROPOSED STORM SEWER — — — OVERLANDRELIEF FLOWDI FLOW DIRECTION CTION RELIEF FLOW NOTES: 1. DURING DESIGN OF INDIVIDUAL PHASES. THE DESIGN ELEVATIONS REQUIRED TO PROVIDE DIRECTIONAL OVERLAND RELIEF DURING LARGE STORM EVENTS SHOULD BE IN GENERAL CONFORMANCE WITH THE SCHEMATIC DESIGNS PER THIS MAP. 2. THE PROPOSED CENTERLINE ELEVATIONS SHOWN ARE BASED ON GIS INFORMATION AND ILLUSTRATE THE MINIMUM ELEVATION DIFFERENCES REQUIRED TO MAINTAIN THE SCHEMATIC DESIGN. d J _ EXHIBIT 11 ass mom now am CobbFendley Texas Registation No. 274 13430 Northwest freeway, SuHe 11 D0 Houston, Texas 77040 713.462 32421 fax 713.462.3262 1 ww'w'.cobfen.com JOB NO. 1012056 CITY OF LAPORTE LAPORTE, TEXAS CONCRETE STREET PROGRAM STUDY PROPOSED OVERLAND RELIEF DIRECTIONAL FLOW MAP SUBNRED: OEWTIED BY: HL SGIE---4ot- DRAWN BY:ILL F.,I,"11 SNFEf Iq: 1 OF 1 SUR1 BY W. NO: FBNO: mam rj 9 d a 6 \ A �---- i.�. • ' .: =� .1� 1 .�v,,.,n�, i-'•._�_.,t ' �, 9i*rr.ny_,,?Jf cif 7tlrZG9J E 1 T �`+""' I. wr.a.+�.:r. ae'.:a'.au. uv' 6. • Inm 1 r .n -e I.•. 4 Feecs'iJ�vrarva r'nv a: T,wv m I � n n. I* w nma..=' „ trim to°Ir�tavn U ..v1vv 'r �. .r a.�FT• `1I.VMA . +r-= R I B 17m J LEGEND PHASE 1 \\\\\\\\\\ ❑.M- Ci MI PHASE 4 PHASE 5 PHASE 6 PHASE 7 0 PHASE 8 0 PHASE 9 0 PHASE 10 PHASING NOTES: 3 1 THE PRIMARY OUTFALLS ON 3RD STREET AND H STREET SHOULD BE i CONSTRUCTED IN THE FIRST TWO A E PHASES. 2. THE PROPOSED PHASING GIVES '- CONSIDERATION TO THE NEED TO RELIEVE DRAINAGE ISSUES IN THE I) REPETETIVE FLOODING AREAS I RFA I AS IDENTIFIED VIA CITY OFFICIALS AND - T HEREFORE. PER THIS MAP. THE PAVING THE PAVING AND DRAINAGE IMPROVEMENTS FOR THESE AREAS ARE PLANNED FOR THE FIRSTPHASES AND SPECIFICALLY FOR PHASES 3,6.7. 5. _ AND 10 f - • . u P6 -. /a /11 � �l q%MWENW i .e. t _r EXHIBIT 12 CobbFendley .. Texas Registration No.274 �''I' ♦i• '� '1 � 13430 Northwest away, Salve 1100 Houston, TexTexan _ 713 462 3242 fax .32621 www.cobfen cam NO.10 306 rvo.lolzos6 CITY OF LAPORTE : ` p LAPORTE, TEXAS CONCRETE STREET PROGRAM STUDY PHASING PLAN �— PHASES 1 TO 10 SuBImED: I DEM41) FYKL SCALE' I IN. HE 017E 7/11/11 9EEf Z. 1 OF 7 O, SUR•EY lit: kc — yr A J �pi 4- s CONSTRUCTION PHASING LEGEND PHASE 11 TO END PHASING NOTES: 1. PHASES 11 - END IF PERFORMED IN PHASES THAT COST APPROXIMATELY St S MILLION PER PHASE WILL LIKELY REQUIRE 1b20 ADDITIONAL PHASES TO ACHIEVE PROJECT COMPLETION. 2. FOR PLANNING PURPOSES, THE PHASES CAN GENERALLY BE DESCRIBED AS FULL -WIDTH ROADWAY CONSTRUCTION WITHIN THE RIGHT-OF-WAY THAT CONSISTS OF 5 BLOCKS IN THE NORTHISOUTH DIRECTION OR )- BLOCKS IN THE EAST/WEST DIRECTION. ,k EXHIBIT 13 CobbFendley Texas Registmbon No 274 - ff 13430 Northwest Freeway. Sude 1100 Houston, Texas 77040 713,462.3242 11ax 713.462.32621 w .c ,com JOB NO.1012066 l CITY OF LAPORTE LAPORTE, TEXAS Its CONCRETE STREET 4n PROGRAM STUDY PHASING PLAN PHASES 11 TO END SUBYITTE1. DESWIED BY:HIL > SC4E 1'�400' DlIwI4 BY:1& LNTE )/11/t1 SHM fh: j OF j FB N0: STORM & UTILITY LEGEND ,'� � -'.i,� Pi >• mil' �. > gF � Y �. � ti �. A _� �—� .. 4� •k a� '�y .. Y^ .�. ' ., EXISTING SANITARY SEWER_ _ — _ -�t 11 e y n t - PROPOSED STORM SEWER - �. ei.:.:av — r. — ..:{- HARRIS COUNTY FLOOD — — I k +,• !•+ — _ �' �� ic't IPi c CONTROL CHANNEL maqy;Wt Ai ffi� tom" h t 3 •v 1 Ar— �yc.. A— 4 .,, � ; �. S+ ")� ,�fibre _ r ` ' �., HASE 1 `., MR, L i - xi_ - +1,�' 'y;��IOTENTIAL 'dF7gaV,, J ``,�!{#„I !9 i NFLI T! HA 4 .' • + OTENTIAL E F ;'' .r: !'F- H A.rE'3'mw-'1- — ---- I'_ +a OTENTIAL rr.l r` '= N F l T j� "art r � 4 sl 01, ' - . r t EXHIBIT 14 X At CobbFendley Texas Registration N. 274 �I z s'.g ee .:i 713662.32621W113A82.32621vvwcobfenco ..m ,: ._, 1 r �, ,-, r.,3m -• .�,r: a i �._.�-" i4x TMO .folnw CI F LAPORTE s t LAPORTE, TEXAS 1 � • A � .. �... ...• itA R7R�i _ QII ^ / ` i'r CONCRETE STREET t WO le PROGRAM STUDY tx��— _ _ _ _ ___ _ - --. - - - - - rvn'• _ ""� - PROPOSED 3RD STREET TRUNK SEWER &POTENTIAL CONFLICTS DESIGNM Vm r.� n 1r r _ ` �^ DaE jFtRi/tl SHM Ro 17 a 1 r (r' w um�,iarrr�T DMC. NO: City of La Porte CobbFendley Concrete Street Program Study July 21. 2011 APPENDIX "A" - PROJECT COST ESTIMATES Client: City of LaPorte Project Name: Concrete Street Program Study Dew WU2011 Cost Estimate 1 - Overall Construction, Engineering, Surveying, and Contingencies 00 on Mon CobbFendley am OVERALL PROJECT I.m 0.,n D..mPlun line QYnlOy Im, P1i. EmmM Prta BASE BB IrEMs: F9, an arA a RnOwY cEMERAL bn s 121e.000, ao1 S 22] 550.00t NS S 191 T00.001 S 12111(oW ao5o.o0 OF.TERAL ITEM SUBTOTAL S 7 r.90t1STA 631i S 1 .00 31 1 5 sY st,m $ .5.00 3 0,704.00).00 9 • '� SY 105,200 $ 35.00 S ..Tu.5o0.00 .. s 2.So s au soo.00 IF. ]. I s t50.00 3 .W I Yn I s QD0 f .ID 470PW.00 I +.I $ n.00 s 1 sm 2oo.ao 14 Bmb.MOr.d. IS I S 95.W.00 S 95,WW 15 • . s 4.50 s z..e 000,00 + s I.Sae.ao s sfo.aao.ro I] M I P4c. SF 85,000 $ 5A0 S .f5.=,W 1e '• cMe.we- sr 1].000 s .2.00 s S.e.000.00 PAVOB MEN SUBTOTAL S 1r,53T.9W.00 19 R. M1p 0*.91 P.wnrA $0M, DIk..," 1110.10, AS TNW1.ws 02221 SY In,= s 4.05 s e51,500.00 20 R. Ya 15-M104u LF 3,200 21 Yale' LF 9]00 22 � -0D' Ya x.- tF 15,e55 $ IzaO s IeT,xro.a0 2] ' -PP9 Ya w4r V 5,e05 S 1..00 S ]e,100.00 DEMOUnON REM SUBTOTAL s 1,0] =." 9T eEVA:R n i1° 1 59"ne EA 9eo $ 2.Soo.00 s 2.su,55o.00 I s ers a5 $ Stamm • s ss.90 s 1 ul 00000 s xo.5o $ ]oe 000.00 s low s aeoo9o.m tY 1. s .W lezmo.5o Slmn .1 S MW s 215505.05 $ KOM. +v s 21o.0o s 2w000.00 i s xWw- s x55o.eo s ]oo.00 s sao55o.m i s 325 W s u 500.00 3 425M s 212550.00 S 150.00 f 4W 000.00 1 f . 5W f .T OOO.IY 11.3 M.W 3]50000.00 a """ 511.Y CWUY aMaO .m.t. l5 I s xso.000,00 s 2w.55o.m STORY S R ITEM SUBTOTAL f 11,071.M.00 MISC. tnl� M SUBTOTAL 40 bbnb L.S I I S "(30,M 5 S .00000.00 MISC UTSITY nEM BUBTOTAL S .Ogo0e w S 3t,]]9,9M.00 BASE BID ITEM SUBTOTAL I 1 LS I 1 $ 515000.00 S 515000.00 1 D.o-1 IS 1 S 4,150,505.00 s 4,IW,50050 1 $ 8 9 .00 s e2e97not 9m Mn S l 1 10,9N,7x0.00 ESTIMATED TOTAL COST f 42,285,320.00 DYIa12010nt115e.4yMa ov1n.1.1ENGWEATN1Cwt E.lnMM_TSt l.m I M 1 Client: City of LaPorte Project Name: Concrete Street Program Study Date: 7/7/2011 Cost Estimate 2 - Overall Construction and Phases 1-10 ��� ::�' Co Fendley OVERALL PROJECT (Construction onty) PHASE i PHASE 2 PHASE 3 PHASE 4 Item Item Description Unil Ousnuy Unit Price Extended Price Oummty Extended Price Quan6y Extended! Price Oummry Extended Pries Ouanny Extended Price BASE 810 ITEMS: For 639 STA. of Roadway Overall Pro)act - GENERAL 1 Mobilization I LS I S 1.278.000.00 S 1,278000.00 1 It 200.000.00 1 $ 38000.00 1 S 38000.00 1 f 37OD0.00 2 Traffic Control and Regulations LS I S 639.000.00 f 639,000.00 1 f 75.OD0.00 1 $ 18,000.00 1 f 19.000.00 1 $ 18,500.00 3 Removs and Replace M sionage LS I S 223.650.00 f 223,650.00 1 S 3.500.00 1 $ 6.300.00 1 $ 6.650.00 1 S 6.475.00 4 Clearing and Gnubbing LS I S 191.700.00 S 191.700.00 1 f 3.OD0.00 1 $ 5,400.00 1 S 5.700.00 1 f 5.550.00 5 SWPPP Protection LS I S 127.800.00 S 127,800.00 1 S 2.000.00 1 1 $ 3.600.00 1 $ 3,800.00 I S 3700.00 6 Sodding I SY 224,000 S 3.50 S 784,000.00 3.500 S 12,250.00 6,300 $ 22050.00 8650 S 23,275.00 6475 1 S 22.882.50 GENERAL ITEM SUBTOTAL $ 3,244,150.00 f 295,760.00 S 91,350.00 f 96.425.00 f 93,687.50 PAVING 7 Fxevetlon STA 639 S 1800.00 $ 1150200.00 10 $ 18,000.00 18 $ 32400.00 19 S 34.200.00 19 f 33,300.00 8 7- einforce0 Concrete Pavement, camplyds-iry SY 84,000 $ 45.00 $ 3.780.000.00 4.000 $ 180,000.00 7.200 It324,000.00 7,800 S 342,0D0.00 7,/W S 333.000.00 9 6- Reinforced Co=ete Pavement completa-ln Mee SY 135.200 $ 35.00 $ 4,732.000.00 2,000 $ 70.000.00 3.600 $ 126.000.00 3,80D $ 133.000.00 3.7D0 S 129,500.00 9 8- me Stabilized Subtinwift SY 249.000 $ 2.50 f 622.500.00 4,500 S 11,250.00 8.100 S 20.250.00 8,550 f 21,375.00 8.325 S 20,812.50 10W Reinforced Conriete Cub LF 127.800 $ 3.00 S 353.400.00 1,667 S 5,OD0.00 3,000 S 9,000.00 3,167 $ 9,500.00 3.083 $ 9.250.00 11 Ume 8%I TON 5.400 $ 180.00 $ 864.000.00 100 S 16,000.00 180 f 28.800.00 190 S 30.400.00 185 $ 29.600.00 12 7 -Reinforced Concrete Ddyeways SY 10.000 $ 47.00 S 470.000.00 160 S 7.520.00 288 S 13.536.00 304 S 14.288.00 296 $ 13.912.00 13 6- Reinforced Calcrele Dnways SY 41,100 $ 37.00 S 1,520,700.00 650 f 24,050.00 1.170 $ 43,290.00 1.235 S 45,695.00 1.203 S M,492.50 14 Adjust Exisdrlp trials. Manholes. mid Valve lBoxes to Grade LS 1 S 95,850.D0 $ 95,85D.00 1 f 1.500.00 1 $ 2.700.00 1 f 2,850.00 1 S 2.775.00 15 4' Concrete Sidewalk, coon ete4 ace SF 544.000 S 4.50 S 2.448,000.00 8,500 f 38.250.00 15.300 S 68.850.00 16.150 S 72675.00 15.725 S 70.762.50 16 Cub Ram s, oxn el tau EA 340 $ 1,500.00 S 510,000.00 5 $ 7.500.00 9 $ 13.500.00 10 S 14 250.00 9 $ 13,875.00 17 Calcrete Trail (8 a 70 6 wide, Complete -in 5l Place P SF 85,000 S 5.00 $ 475.000.00 1,500 f 53.000.00 2.700 S 113,400.00 2,850 f 119.700.00 2,775 $ 116.550.00 ' 18 ParYJrq lMStreel. 8- Caicrele Pavement fr Cub, and 6- rode, can leleti ace SY 13.000 S 42.00 It 548,000.00 200 f 8.400.00 360 f 15.120.00 380 S 15.960.00 370 $ 15.540.00 PAVING ITEM SUBTOTAL f 17,597,650.00 S 450,470.00 f 810,646.00 f 6S5,693.00 f 833,369.50 DEMOLITION 19 Remove mid Dispose of Pavmnem. Street, Drives. and Sidewalk, Al Thicknesses 02221 SY 162.900 f 4.00 S 551.800.00 2.600 $ 10,400.00 4,680 S 18,720.00 4,940 f 19.760.00 4.810 f 19.240.00 20 Remove and Dispose of Storm Sewer - pipe size 15'and less LF 3.200 S 6.00 $ 25.500.00 20 S 160.00 20 S 160.00 20 S 160.00 20 S 150.00 21 Remove and Dispose of Storm Saner - pipe size 18' LF 9.300 S 10.00 S 93,OD0.00 60 f 600.00 80 S 600.00 60 S 600.00 60 $ 800.DO 22 Remove eM Dispose of Slonn Sewer- plpe size 24- LF ISAW S 12.00 f 137.200.00 120 f 1.440.00 120 $ 1,440.00 120 $ 1.440.00 120 S I,N0.00 23 Remove and Dispose of Storm Sewer- pipe size 30-J2- LF SAW It 14.00 i 78.400.00 40 $ 560.00 40 f 560.00 40 $ 550.00 40 3 550.00 DEMOLITION ITEM SUBTOTAL f 1,035,600.00 $ 13,160.00 f 21,480.00 If 22,520.00 f 22,000.1)0 STORM SEWER 23 Iriets and Manholes (Cons.) - A9 types and depths EA 980 S 2,600.00 $ 2.548.000.00 20 $ 52.D00.00 38 S 93.600.00 38 $ 98.800.00 37 S 96,200.00 23 12- Drain Baalru EA 980 S 675.00 S 648,D00.00 20 $ 13.500.00 36 S 24,300.00 38 S 25.850.00 37 S 24 975.00 24 8- PVC Slam Sewer LF 35.200 f 20.00 S 7D4,000.00 550 $ 11.DD0.00 990 $ 19,800.00 1.045 f 20900.00 1,018 S 20,350.00 25 24-Slorm Sewer LF 24.200 $ 55.00 'S 1,331,000.00 380 $ 20900.00 684 S 37.620.00 722 S 39,710.D0 703 S 38,665.00 26 30- Storm Senor LF 4,400 $ 70.00 S 306,000.00 0 S 800 f 55.000.00 0 f 0 S 27 36- Slmm Sewer LF 8.500 S 80.00 f 680.000.00 0 f 0 $ 0 f 0 f - 28 42' Slcrm Sewer LF 1,800 S 90.00 f 182.000.00 0 f 0 S 0 S 0 f 29 48- Storm Sewer LF 2.100 11 100.00 $ 210.000.00 0 $ 0 f 0 $ 475 S 47.500.00 30 54- Stonn Sewer LF 600 It 150.00 S 90.000.00 0 $ 0 S 0 $ 0 $ 31 6(r Slam Sewer LF 1,400 S 210.DD S 294.000.00 0 f 475 $ 26,125.00 0 $ - 0 It 32 88-Slam Serer LF IDD f 260.00 S 26.000.00 0 $ 0 f 0 $ 0 It 33 77 Slam Serer LF 1.000 f 300.00 f 300,000.00 0 f 0 $ 0 $ 950 f 295.000.00 34 78-Slam Serer LF 100 $ 325.001 f 32,500.00 0 f 700 $ 227.500.00 0 S 0 S 35 84' Storm Serer LF 500 $ 425.00 $ 212.500.00 0 $ 0 f 475 S 47,500.00 0 S 38 98-Stam Sewer LF 1,0D0 $ 450.00 S 450.000.00 0 $ 0 f 950 S 142.500.00 0 S 37 708' Storm Sewer LF 1,DD0 $ 475.00 $ 475,000.00 475 $ 47.500.00 0 $ 475 S 47.500.00 0 9 38 114- Storm Sewer LF 700 f 500.00 S 350.000.00 650 S 97.500.00 0 $ 0 S - 0 f 39 Channel Impmvemen13 Downstream of 3rd Susan Orman a r or cxA . and etc. LS 1 f 250,000.00 S 250.000.00 1 $ 250.000.00 0 0 0 STORM SEWER ITEM SUBTOTAL $ 9,071,000.00 S 492,400.00 It484,945.UD S 422,560.00 $ 512,590.00 MISC. UTILITY ITEMS 40 GeneralUdll Ad ustments I LS 1 1 $ 400.000.00 S 400000.00 I f 6,500.00 I 1 I $ 11,700.00 1 S 12.350.00 1 S 12.025.00 MISC UTILITY ITEM SUBTOTAL S 400,00dim $ 31,348,600.00 It 6,500.00 f 1,268,2111 f 11,700.00 3 1.420,321.00 S-12,350.00 S 1,409,748.00 S 12,025.00 f 1.473,972.00 BASE 810 ITEM TOTAL D:Wa12010112058.layone m me%ENGWEATH1Cost Esemns 7-S11.As I of 2 Client: City of LaPorte Project Name: Concrete Street Program Study Date: 7/7/2011 Cost Estimate 2 - Overall Construction and Phases 1-10 E• CobbiFendley HE PHASE 5 PNASE 6 PMASE 7 PNASE 8 PHASE 9 PHASE 10 Item Item Description Unit Ouamity No Quantity EdeMed Price OuardiN Extended Price Ouarsity Extended Price Ouanfity Extended Price Ouandty Extended Price Quantity Extended Price BASE BID ITEMS: For 639 STIL of Roadway Overall Project GENERAL 1 Mot,ilization LS 1 1 S 45.000.00 1 S 42.000.00 1 $ 18,000.00 1 f 50,0W.00 1 S 48,000.00 1 $ 48000.00 2 Traffic Coned and Regulations LS 1 1 $ 22.50D.00 1 S 21.000.00 1 $ 23.000.00 1 $ 25,000.00 1 $ 23,000.00 1 $ 24,000.00 3 Reove end R ace all signage m LS 1 1 $ 7,875.00 1 f 7.350.00 1 $ 8,050.00 1 S 8,750.00 1 $ 8.050.00 1 S 8,400.00 4 Clearing and Grubbinil I LS 1 1 $ 6,750.W 1 f 6.300.00 1 $ 6,900.00 1 $ 7500.00 1 f 6.900.00 1 S 7.200.00 5 SWPPP Protection I LS 1 1 It 4,500.00 1 f 4.200.00 1 f 4.600.00 1 S 5,000.00 1 f 4.500.00 1 S 4.800.00 6 Sodding SY 224,000 7.875 1 It 27582.50 7.350 1 S 25.725.00 8.050 f 28.175.00 8.750 f 30,625.00 8.050 1 f 28.175.00 8400 $ 29.400.00 GENERAL ITEM SUBTOTAL S 114,167.50 It106,575.00 S 116,725.00 It126,875.00 $ 116,725.00 f 121,800.00 PAVING ] Roadsy Excavation STA 839 24 $ 13,200.00 21 f 37,800.00 24 f 43,200.00 25 $ 45,000.00 23 $ 45.000.00 25 f 45,000.00 8 7- Reinforced Concrete PevcneM, Complete n- place SY S4.000 9.000 f 405,000.00 8.400 $ 378,DW.00 6.200 $ 414,0D0.00 10,000 S 450,ODO.00 9,200 f 414.000.00 SAW $ 432.000.00 B 6- Reinforced Concrete Pavemeru. rmiplate-in place SY 135,200 41500 f 157,SW.00 4.200 f 147.000.00 4.600 f 181,000.00 5,000 f 175.OD0.00 4.600 f 161.000.00 4.800 f 165.000.00 9 8'Urne Staeilized Subgrade SY 249,000 10.125 f 25.312.50 9.450 f 23.625.00 10,350 f 25,875.00 11.250 $ 28.125.00 10.350 f 25.875.00 10.800 $ 27,DDO.00 10 8' Reinforced Concrete Curt, LF 127,B00 3,750 f 11.250.00 3,5W f 10 500.00 3.833 f 11,500.00 4.167 S 12.500.00 3.833 S 11.500.00 4,ODO f 12.0D0.00 11 Ume 8% TON 5,400 225 f 36,000.00 210 $ 33,800.00 230 f 36,800.00 25D S 40.000.00 230 S 36.800.00 240 f 38.400.00 12 7' Reinforced Concrete Driveways SY 10,000 300 f 16.920.00 336 f 15.792.00 368 $ 17,296.00 40D $ 18,800.00 368 $ 17.296.00 384 $ 18,048.00 13 8' Reinforced Concrete Driveways SY 41.100 1.463 f 54.112.50 1,365 $ 50,505.00 1,495 It 55,315.00 1.625 S 60.125.00 1.495 1 $ 55.315.00 1,560 $ 57.720.00 14 Adjust EidsdN Inlets. MaMolea. end Valor Bows to Grade LS 1 1 f 3.375.00 1 S 3,150.00 1 f 3,450.00 1 1 $ 3.750.00 1 $ 3.450.00 1 f 3.800.00 15 4- Concrete Sidewalk,completein-law SF 544,000 19,125 $ 86,062.50 17.850 $ 80.325.00 19.550 f 87,975.DO 21.250 f 95.625.00 19.550 f 87.975.00 20400 S 91 aw.00 16 Cut, Rarnips, coon eto-i ace EA 340 11 S 16.875.00 11 $ 15.750.00 12 f 17.250.DO 13 f 18.750.00 12 f 17.250.00 12 f 18,0w.00 17 5' Concrete Trail IS or 10 0 wide. Complelain Place SF 95.000 7.375 S 141,750.00 3.150 f 132,300.00 0 $ - 0 f - 0 f - 0 S - 18 Park4p OR -Street, 8- Gamete Pawmerd. 6' Curti, and 8- Su rade, coon letei law SY 13.0D0 150 f 18.9w.D0 420 f 17,BIO.OD 480 $ 19,J20.00 500 f 21,000.00 48D f 19,320.00 480 f 20.180.00 PAVING ITEM SUBTOTAL S 1,016,257.60 S 945,967.00 f 892,981.00 f 968,675.00 f 1124,781.00 $ 931,728.00 DEMOUTION 19 Remove and Dispose, of Pavement. Street. Ddws, and Sidewalk, All Thicknesses 02221 SY 162.900 5,850 S 23.400.00 5.460 f 21.840.00 5,990 f 23.920.00 8,500 f 26.000.00 5.980 $ 23.920.00 6.240 $ 24.950.00 20 Remove and Dispose of Stnnn Sewer - pipe size 15' aM less LF 3.200 20 $ 180.00 20 $ 180.00 20 $ 1B0.00 i0 $ 1W.00 20 $ 160.00 20 S Iw.00 21 Remove and Dispose of Storm Sewer - pipe size Is, LF 9,300 80 S 800.00 80 i 800.00 80 $ 800.00 BO f 800.00 80 f 800.00 80 S 800.00 22 Remove end Dispose of Storm Sewn - pipe size 24' LF Mew 120 f 1,440.00 120 $ 1,440.00 120 S 1,440.00 120 f 1,440.00 120 S 1.440.00 120 $ 1,440.00 23 Remove and Dispose of Storm Sewer - pipe size 3(r 4r LF 5.600 10 $ 580.00 40 80 f 5.00 40 f 580.00 40 f 550.00 40 f 580.00 40 $ 580.00 DEMOLITION ITEM SUBTOTAL f 26,160.00 f 24,600.00 $ 26,680.00 $ 28,790.00 $ 26,680.00 f 27,720.00 STORM SEWER 23 Iriets and Manholes (Cons.) -All types and depths EA 980 45 S 117,0D0.00 42 f 109.200.00 48 f 'I19.6DO.00 s0 S 130,ODO.00 46 $ 119,600.00 48 $ 124.800.00 23 12' Drain Basins EA 960 45 $ 30.375.00 42 f 28.350.00 48 f 31.050.00 so S 33.750.00 46 S 31.050.00 48 S 32 400.00 24 S' PVC Storm Sewer LF 35.200 1,238 $ 24.750-00 1.155 f 23.100.00 1.265 f 25.3DO.00 1.375 $ 27 SW.00 1.265 S 25,300.00 1.320 S 28 400.00 25 24' Sloan Sewer LF 24.200 ass f 47.025.00 798 f 43,890.00 874 f 48,070.00 950 S 52.250.00 874 S 48,070.00 912 It 50160.00 26 ](-Sloan Sewer LF 4.400 0 f 0 $ 475 $ 33,250.00 0 f 475 It 33.250.OD 900 S 63,000.00 27 38' Storm Saver LF 8,500 475 f 38.000.00 0 f 0 S 950 $ 76.000.00 ow $ 76.000.00 450 f 36.000.00 28 42' Storm Sewer LF 1,800 0 f 475 S 42.750.00 0 $ 0 f 950 $ 85.500.00 0 f 29 48' Storm Sewer LF 2,100 475 S 47 5DO.00 0 1 $ 450 $ 45.000.00 0 f 0 $ 450 f 45.000.00 30 54' Stortn Sewer LF Soo 0 f 0 S 450 $ 67.500.00 0 f 0 f 0 f 31 W Stone Sewer LF 1,400 100 $ 5,5w.00 0 S 450 f 24.750.00 0 f 0 f 0 S 32 66'Ste. Sewer LF 100 0 S 0 $ 0 f 0 f 0 S 0 S 33 7r Storm Sewer LF 1.000 0 $ 0 $ 0 S 0 S 0 f 0 $ 34 78' Storm Sewer LF 100 0 f 0 S 0 $ 0 f 0 S 0 $ 35 84- Stonn Sewer LF 500 0 1 f 0 3 0 f 0 1 S 0 $ 0 f 36 96' Sloan Sewer LF 1,D00 0 f 0 $ 0 $ 0 1 f 0 S 0 $ 37 108' Stone Saucer LF 1,000 0 f 0 S 0 $ 0 f 0 f 0 $ 38 114' Storm Sewer LF 700 0 f 0 f 0 $ 0 It 0 f 0 S 79 Channel Improvements Dt nstream of 3rd Street Oudall(Weir or c~, and etc. LS 1 0 S - 0 S - 0 f - 0 f - 0 f - 0 f - STORM SEWER ITEM SUBTOTAL f 310,150.00 f 247,290.00 f 304,520.00 f 319,500.00 f 413,770.00 f 377,760.00 M15C. UTILITY ITEMS 10 General Utrli AO uslmenta LS 1 1 S 11,825.00 1 f 17,650.00 1 f 14,950.00 1 $ 16,250.00 1 S 14,1350.00 1 1 f 15,800.00 MISC UTILTY ITEM SUBTOTAL f 14.625.00 f 1,431.380.00 S 13,:W.w S 1.336,02.00 S 14,950.00 S 1,445,855.00 f 16,250.00 $ 1'"0.060.00 $ 14,950.00 $ 1,471,906.00 S 15,600.00 f 1,474,608.00 BASE BID ITEM TOTAL D:MJet201g12056.1a_p de ns ia%ENGIHEATMCost Esdmate 7-5-11.)ds 2 of Client: City of LaPorte Project Name: Concrete Street Program Study Date: 7/21/2011 Cost Estimate 3 - Overall Construction and Pavement Reduction Options ••■ CobbFendley ■■ OVERALL PROJECT (Construction only) CURRENTLY INCLUDED IN OVERALL BASE CASE 12r CONC. WI CURS) OPTION'A' ONE-WAY CASE (12 CONC. WIOUT CURB) CX ION BOLLARD MID -BLOCK BOLLARD CASE (W CONC-WIOUT CURB -TWO WAYST.) OPTILARD CASE ICI -BLOCK BOLLARD GSE (2r DRIVABLE GMSSW/OUT Item It. Description Unit Ouantity No Unit Price EAarded Prim Ouamlty Eiaerge6 Price Quantity Edanded Price Quantity EAanded Price Quantity EAerded Prim BASE BID REMS: For S3S STA of Roadway GENERAL 1 Mooluntlon LS 1 S 1.278.WO.W S 1278,OD0.W 0 S 0 S 0 S 0 3 2 TraBic Coned and R atiom LS 1 S 639.000.00 S f139.000.00 0 S 0 S 0 $ 0 S 3 Remove snd R am 0 witnage LS 1 S 223.650.00 S 223.5W.W 0 S 0 S 0 S 0 f - 4 Clearing en0 GnkNng LS 1 s 191]00.00 S 191JW.W 0 S 0 S 0 S 0 f 5 SWPPP Protection LS 1 S 127.800.00 S 127.6W.W 0 $ 0 S 0 s 0 $ 5 Sockfing 1 5Y 1 22A.000 3 3.50 3 764.000.00 0 S 0 3 0 s - 0 s GENERAL REM SUBTOTAL 3 3,244,160.00 S S -- PAANG 7 RoedwAy Ewavatbn STA 639 1 $ 1,BW.W S 1150.200.00 0 S 0 f - 0 S 0 f 8 T Reinlarced Concrete P"on anl, mnpletaim Place SY 84,W0 f 45.W S 3.780.000.00 0 $ - 0 $ - 0 s - 0 $ - 9 6•Reinlaced COrKfete Pmemenl. corrpetatin Plao, SY I35,Z(O $ 35.W f 4,7J2,WO.W 22.050 S 771,7W.W 9,450 It 3J0.750.00 15.750 f 551.2W.W 0 3 - 9 IF Lim Stabilizat! Subgrada, SY 249,OW f 2.50 3 822.5W.W 22.050 f 55.125.W 8.450 f 23.825.00 15.750 $ 39.375.W 15.750 S 39.375.W 10 6'Reinf�Canaate Culo LF 127.600 S 3.W f 383.400.00 14.ODO $ 42.WO.W 0 $ 0 S 0. f - 11 Lime 8% TON 5.400 3 1SOM S 864.000.W 460 f 73.600.00 0 S 375 S W.ODO.W 375 S W.000.W 12 7' ReinfateO Concrete Od s SY to." s 47.00 S 470,000.00 0 S 0 S 0 $ 0 f 13 6' ReIr401ted Concrete Ori s SY 41,1W $ 37.00 S 1520.7W.W 0 S 0 S 0 f 0 $ 14 Adjust Existing Inlets, Menln.. and Valve Boxes to Grade LS 1 f 95.BSO.W S 95,B50.W 0 S - 0 S - 0 f - 0 S - 15 4-CaraetA SidS.8k COMPNH8CS SF W.000 s 4.50 S 2.448,000.W 0 S 0 S 0 S 0 S 18 CMOR eteti ace EA w S 1.500.00 S 510,000.W 0 S 0 S 0 S 0 $ 1] S Oencrate Too (8 or 10 a vd". CarWetaJn- Place SF 95.W0 s 5.00 S 475.000. W 0 S - 0 S - 0 S - 0 is - 18 Perking unStreeL r Conmete Pavement,e' CaO, eon r S em SY 13,OW f 42.W $ SIB,WO.W 0 $ - 0 S - 0 $ - 0 f - PAVING REM SUBTOTAL $ 17,SS7,SM0,00 f 542,476.05 0 f 364,376.00 3 660,925.00 f 112,375.00 DEMOLMDN 19 Remove and Dispose of PAvetmnl, Street, Drives, Ant! Sidew k. NI TNcblesses 02221 SY 162.9W S 4.00 S 651,61)(). W 0 S - 0 S - 0 S - 0 S - 2O Rmrove mat Dispose of Slane Sew - pipe We IF and less LF 3,2W f B. W f 25,600.00 0 $ - 0 f - 0 S - 0 f - 21 Remove and Dispose of Slam Sewer - pipe size lr LF I)= f law S 93.000.00 0 S - 0 S - 0 S - 0 S - 22 Remove eN1 Dispose of Slam Saver - pipe tits 24' LF 15.80D f 12.W S 187,2W.W 0 S - 0 S - 0 S - 0 f - 23 Remove And Dispose at Storm Sever - pipe size 3r4r LF 5,800 S 14.(0 S 78.400.00 0 f - 0 $ - 0 S - 0 S - DEMOLITION REM SUBTOTAL S 1,036,SW.WSTORM SEWER 23 [Nam and McMolos (Cane) - Ao types and depft EA w f 2.5MI W S 2.548.000.00 0 S - 0 S - 0 f - 0 S - 23 tr Drain Basins EA 960 S 675.W f 848.WO.W 0 S 0 f 0 S 0 S 24 WPN Slam Sew LF 35.2W S M.W.S 701.000.00 0 S 0 $ 0 S 0 S 25 24-StonnSaw LF 24,2W S 55.00 f 1331.000.W 0 s 0 $ 0 S 0 f - 26 301 Storm Sew LF 4,400 S 70.W $ 308.000.00 0 S 0 $ 0 S 0 f 27 3r Stom1 Sew LF 8.500 $ SO. W f 880.000.00 0 $ 0 S 0 $ 0 S 28 4r Storm Saw LF 1.800 f BOW S 162.000.00 0 S 0 Is 0 S 0 3 29 48' Slam Saw LF 2.100 S 1W.00 S 210.".03 0 S 0 Is 0 S 0 f - W 54'Slam Sewer LF 800 3 i50.W S 90.000.00 0 3 0 Is 0 f - 0 $ 31 6r Storm Sewer LF 1,4W $ 210.W S 294.000.W 0 f 0 f - 0 S 0 S 32 6r Stonn SewerLF 1W f 260.00 S 26.WO.W 0 3 0 f 0 S 0 f 33 72-Storm Sew LF 1.000 f 3W.W f 30g.g00.00 0 $ 0 S 0 f 0 S - 34 7r Stem Sew LF 1 W f 325. W $ 32.500.00 0 3 0 f - 0 S 0 i 35 8A'SI.Saw LF 500 f 425.W S 212.S0().W 0 S D S 0 S - 0 S w 9r Stone SAw LF 1,UW 3 ISOM S 4511=00 0 S 0 $ 0 f 0 Is 37 108'Stoon Saw LF 1,OW $ 475.00 S 475.WO.W 0 S 0 S 0 S v 0 1 S M 114-Storm Sew LF 7W S 5W.W f 3W.WO.00 0 3 0 f 0 S 0 Is 39 Chanel Irrpwemenb Downstream of 3nI Street "at(Weir or oiven, and WC. LS 1 S 250.000.00 S 2W.000. W 0 S - 0 S - 0 $ - 0 i - STORM SEWER REM SUBTOTAL $ 5,071,OW.00 f f MUTILITY 40 1GneralUm.1yAcipstrotents LS 1 1 S 41M.WO.W S 400.000.00 0 f 0 Is 0 $ 0 Is AOSC UTILITY REM SUBTOTAL $ aW,mm S 31,343,11W.00 $ f 54;476,00 is S 361,375.W f f 650,326.00 S - S SS,376.W BASEBIDREMSUBTOTAL ALTERNATE PAVEMENT REDUCTION ITEMS 1 Gnsa PeronfY costs SF 0 f 1.50 S 0 1 3 0 S 0 S 140.000 S 210.000.00 2 IF Cleaned Concreta1e TON 0 S 30.00 S 0 3 0 S - 0 S 5.000 f 150 OOO.W 3 jr clean M ean Sa TON 0 S 0.00 S 0 S 0 S 0 3 / 7W $ 3. 000 W 4 113ollana, LS 0 S 10.000.00 3 0 S 0 f 1 i t0.000.W 1 S 10.000.013 ALTERNATE PAVING REDUCTION REM SUBTOTAL S f i f 10,000.00 { e04,000,W BASE PLUS ALTERNATE BID REM TOTAL FOR SCENARIO f 31,118,6W.00 6 942,476.00 S 364,376.W f M,626.00 f 603,376,00 D:1c SXMlU12056.layau corKreM1ENGWEATMC4rM EsOmete 7S1 t.xls 1 ot2 City of La Porte CobbFendley Concrete Street Program Study July 21 2011 APPENDIX "B" - DRIVABLE GRASS BROCHURE DRIVABLE GRASS Permeable, Flexible and Plantable Concrete Pavement System � r -w /0- v��� R # 34 s � fir• � Ffi: W it # 74 a ,. r NO SOIL RETENTION Manufacturing • Distribution • Design • Installation Plantable concrete systems :1r Simply the best permeable, flexible and plantable pavement system in the marketplace today! 3 LL Oft 41pr lop DRIVABLE GRASS.. is a permeable, flexible and printable concrete pavement system. It is designed for use in areas where a permeable. and/or a vegetated surface is desired for aesthetic or sustainable reasons. An engineered grid system allows the product to flex and conform to irregular ground surface contours while providing the intended structural support. The products geometry allows for enhanced root penetration. intiltration/filtration of storm water. increased on -site storm water storage and minimization of site runoff. DRIVABLE GRASS® maintains its load supporting characteristics even when saturated. 3 n M , COMMERCIAL APPLICATIONS Access Easements Fire Lanes 1 , Parking Areas v i. Driveways - RV & Boat Storage Golf Cart Paths J'. Bio-Swale Reinforcement Green Roofs The perfect Pathways _ Maintenance yards - paving choice RV Parks for a wide Boat Ramps Slope Armor variety of Trickle Channels "IF Seam Bank d �T applications! Calvert Outlets Installation - — DRIVABLE GRASS® is a prime example of the new generation of environmentally friendly _ products that engineers and designers should specify and the development and building • ' industries must provide in this era of sustainability. DRIVABLE GRASS® can be used in place T; of poured concrete and asphalt for a wide variety of applications. It is designed for use in areas where a permeable, vegetated vehicle access or parking surface is beneficial or required. In addition to driveways and parking stalls, other applications include emergency and service x vehicle access lanes, RV parking, and bio-swale protection. just to name a few. Its unique 1%W# properties provide opportunity for a diverse range of uses. Whether your project is a residential 1. driveway or an acre of alternative parking that doubles as a storm water bio-retention basin, DRIVABLE GRASS® is the best solution to your permeable pavement design needs. r �- =i • UI More and more homeowners today want to do their part to insure a better tomorrow! Many homeowners today are looking for ways to reflect their environmental concerns in sustainable yet aesthetically pleasing home improvements. Along with other low impact development (LID) strategies, the use of DRIVABLE GRASS® as `GREEN' driveways, side yard parking access, garden -' paths and permeable patios provides a perfect opportunity to minimize storm water runoff and reduce heat island effect. RESIDENTIAL APPLICATIONS .. ALTERNATIVE INFILLS ~tt u There are many reasons for choosing DRIVABLE GRASS' with an alternative infill. Whether its environmental concern, an aesthetic choice. regional climate response or regulatory constraint. not everybody wants to grow turf grass. Alternative intflls basically divide into two classes: alternative planting and non -vegetated materials. Alternative plants for DRIVABLE GRASSO include ground covers and non -turf grasses. With alternative plants, the installation profile remains the same as with turf -grass: a mix of sand and organic material above and below the mats to act as a rooting zone. In some cases the plant material can be seeded like turf grass while others may require hand installation of plant plugs in the void spaces between the mat pads or even the periodic removal of individual pads for installation of plant sizes up to a 4' pot. Watering requirements will depend on the plant 'i material selected but in most cases it will be significantly lower than for turf grass. Non -vegetated infills include crushed rock, sand, dirt, bark i mulch and even artificial turf. Each of these products may be chosen for their particular properties, as well as the fact that they require no water. A one -inch layer of sand. without added organic material, is placed as a leveling base below the DRIVABLE GRASS® mat for non -vegetated infill. The r sand base is placed over a landscape filter fabric to prevent weed growth. IF a J1111111111115; moms m s SAND GRAVEL DIRT ail t �' + �� • s wi Odo BARK GROUND COVER ARTIFICIAL GRASS A " I .&aa- 6 I ./ -a rJ J , Where reduced water consumption is a consideration, DRIVABLE GRASS° can be installed „ using alternative infills. � t R= 1{IMF •y J' Ar yr / I • etr All Strength and Durability! `► F` �� 'i'>t' Soil Retention's DRIVABLE GRASS® y product was just the solution we I k' t P - �.' were ao mg or. rowtlmg the R. - _- strength and durability we require - while at the same time solving our run off water issue. MillI - Oceanside Fire Chief - !W e 0 -4a�if DG7 Typical Heavy Traffic Drivable Grass® Detail NOTE: For Storm Water Management Drivable Grass Mats Applications Including Storage and Saed. Plug. Sod. Or"ltdt * "or Infill Infiltration: Alternative In ills. Gravel Base At Surtace Back811 W/ 80% Well Graded Material. and Sub-Surtace Drainage 4" Nominal Sand/20°4 Organic Material may be Required Compacted Soil Provide ded Bedding Course of 80% 0 Perimeter Welt Gratled Bedding Material Compacted Base Depth _ Per Soil Engineer Optional GeoteMile I� I MM- Fw L9 l Dldy ftft Applicatiaa: Provide 80% Well Graded 5and 20%Organic Material for Surface Infill and for Bedding I�III = IIIF—M77�I = MalonalProvide 1.5"m3 Sodding Course DependingdnAppicaeon Optional Geotexhle Compacted Subgrade per Soil Engineer per Soils Engineer ............................................................................................................................ USCS Classification GW - Well Graded Gravels SM - Silty Sands 6-10 . ML - Inorganic silts of low plasticity GP - Poorly Graded Gravels SC -Clayey Sands CL - Inorganic clays of low plasticity GM - Silty Gravels MH - Inorganic silts of high plasticity GC -Clayey Gravels CH - Inorganic clays of High plasticity SW - Well Graded Sands SP - Poorly Graded Sands Typical R-Value Reticle 30-70 1040 5-15 Firelane 6-8 6-10 10-12 Parking Lots Stalls 4-8 6-10 8-12 Parking Lots Traveled Way 6-12 8-14 12-16 Resitktfgal Driveways 0-4 2-6 610 Walkways 0 0 0-4 NOTE: Existing subgrade and base materials are to be compacted prior to placement of the DRIVABLE GRASS . These recommendations are to he used as a general guide, Refer to your Ovil or Geolechnical engineer for actual base thickness design. Recommendations were generated using Crushetl Misrellanreoes Base /CMB) as me typical base material older types of base material can be used CM8 has a gravel facto ofGF=1. 1. Actual base thickness will be dependant on the Traffic Index /T/) and any Gravel Factor (OF) generated by the Engineer of Record for the project based on site specific Conditions. Estimated Traffic Index (Tll values mat were used for the generation of me recommended base makness provided in the table are: Firelane 17=4.0. Parking stall 7I=4.0. Traveled Hay 71=5.5. Filter Fabric and subdraus, may oe required for was with a law value of permeability and arranged. Soils nut recommended for use as subgrade material are the OL. OH. PT type soils, Stomlwater requirements may ultimately govern the design of the base thickness. :g Easier to install than interlocking concrete pavers! DRIVABLE GRASS" easily allows for difficult installations such as vertical curves and grade breaks to be achieved, due to its flexiblility. Its grid connected independent concrete pads are designed to flex and conform to irregular ground surface contours along predefined linear grooves without coming apart. Easily handled by one person, the 2' x 2' mats are quickly installed and don't require mechanical compaction to hold them in place. For additional information. visit our websfte at www.soilretention.wm Property Value Nominal Area -xWxH 24 x 24" x 1.5" Gross Area of each mat _ _ 4 s.f. Concrete Strength _ _ 5000 psi _. Weight of each not _ 45 His Flexibility run radius of curvature 12 in _ Plantable Area _ 60°%100%for Sod Concrete Surface Area 40% Concrete Bearing Area _ 88% Mats Der pallet _ 60 ..+..-a 4 3r U I/ Y L LEED Credits and Potential Point Contributions !M� Section IntenVApplication Example Uses Credit Points Alternative Parking capacity DRIVABLE GRASS' would allow 4.4 Transportation overflow parking that would not count for excess of local zoning requirements Site Development Prpfect/Restore Habitat Overflow Parking Stalls, 6ioswale 5.1 1 Site Development Maximize Open Spaces Parlong Stalls, Access Roads, 5.2 1 Walkways /Pathways Stormavater Design Quantity Control Bioswale. Trickle Channels. Parking 6.1 1 Areas. Vegetated Roof Stormwater Design Quality Control Credit Bioswale. Trickle Channels, Parking 6.2 1 Areas. Vegetated Roof Heat Island Effect Non -Roof Parking Areas and Access Roads 7.1 1 Heat Island Effect Roof Green Roof Pathways/Erosion Control 7.2 1 I r Water Efficient Reduce by 50% Use as a permeable surface/filter to 1 2-4 i Landscaping or No Potable Water collect water which can then be used Use or Irrigation for landscaping Use with aflemate infilis or drought tolerant groundcovers or as part of a Xenscape w/gravel infill for erosion control -1 -- 4 1-2 Recycled Content 10%/ 20% 45% Cement Replacement with (Post -Consumer Fly Ash in Concrete Mix +1/2 Pre- ComiumeO Regional Materials 10% 120% Extracted We currenffy manufacture in several 5 1-2 Processed and states. Please contact us for locations. Manufactured Regionally Innovabon in Design 1 1-5 1 12 BENEFITS LOW IMPACT DEVELOPMENT (LID) Drivable Grass' provides a soft visual look. BEST MANAGEMENT PRACTICE (BMP) Long term effective solutions DURABILITY Drivable Grass` has a concrete compressive strength of 5.000 psi. The design allows Drivable Grass' to move up and down with a freeze/thaw cycle. STRENGTH Proven load capacity - see Oceanside Fire Department and other test reports. FLEXIBILITY WITHOUT MEMORY Reinforcing grid and grooves in Drivable Grass' give it the ability to conform to uneven contours in the sub -base. BIO-FILTRATION Insects and micro-organisms within the grass irdill help to significantly break down pollutants in the stormwater. PERMEABILITY Reduces site runoff. promoting ground water recharge and onsite storage. ROOT PENETRATION / Drivable Grassallows for superior root penetration into the underlying sub -grade A - �> promoting healthy growth. - — LOWER RUNOFF COEFFICIENT "C" _ �_gy�pp Helps to reduce storm drain and inlet size. - - Ttr.Y9i. REDUCTION IN HEAT ISLAND EFFECT Light color and grass surface reflects _ solar radiation helping to cool the surroundings. LESS EXCAVATION Requires less removal of sub -base than traditional pavers or thick blocks. QUICK EASY INSTALLATION _ Placement of 4 s.f. at a time. Drivable -'� - --- - Grass' is installed in hall the time of conventional pavers. 13 STORM WATER MANAGEMENT Replace conventional detention - basins and gain more usable space! DRIVABLE GRASSP consists of a unique lattice -style structure that allows vegetation to grow through it while simultaneously providing a solid surface with strength comparable to more common paving materials. The permeable nature of DRIVABLE GRASS° enables precipitation to infiltrate into the undedying soil, thus increasing on -site storm water storage and minimizing runoff. Properly Value Runoff coefficient (C) Aggregate Infill 0. t -0.6 ' Gress Infill 0-0 4 " - Infiltration rate (K iW Aggregate Infill 4-40' Grass Infill Manning's Roughness Factor (n) - 0.025-0.03'I" ____ MUTES: ' Depends on size. shape of aggregate used as inh7t "Depends on amount and type of grass used Bedding Course/ i Root Zone Structural Base Section Groundwater Table Filter Fabric as Required -'A `W i Permeability Surface Storage Capacity Lower "C" Value •:_ 'Ai Increase Time Concentration ` Biofiltration Storage/Detention Basin Infiltration l f"' Groundwater Recharge DRIVABLEGRASS Mats Adjacent Surface Ir Adjacent Surface 1 Slope Existing Subgrade --/ �— Filter Fabric as Required NOTE: Adjacent Surface Varies Depending on Application 15 4! Protected by US and International Patents and Trademarks VF +Ar t:► fit !' ,Distributed By w!�►. to r " .J 1 l www.soiIretention.com (800) 346-7995 o a DRIVABLE GRASS`" Permeable. Flexible and Plantable Concrete Pavement System to ti- �# 40 lot �.•,{��I 4 SOIL RET"TION Manufacturing • Distributi/o • Design • Installation Plantable cc,Crete systems r s r Simply the best permeable, flexible and plantable pavement system in the marketplace today! z �, + ,.rs .... ..'a a r +w 40 4w 40 DRIVABLE GRASS' is a permeable, flexible and plantable concrete pavement system. It is designed for use in areas where a permeable, and/or a vegetated surface is desired for aesthetic or sustainable reasons. An engineered grid system allows the product to flex and conform to irregular ground surface contours while providing the intended structural support. The products geometry allows for enhanced root penetration, infiltration/filtration of storm water, increased on -site storm water storage and minimizatim of she runoff. DRIVABLE GRASS° maintains its load supporting characteristics even when saturated. 3 COMMERCIAL APPLICATIONS The perfect paving choice for a wide variety of applications! Access Easements Fire Lanes Parking Areas Driveways RV & Boat Storage Golf Cart Paths Bio-Swale Reinforcement Green Roofs Pathways Maintenance Yards RV Parks Boat Ramps Slope Armor Trickle Channels Stream Bank Installation Culvert Outlets DRIVABLE GRASS° is a prime example of the new generation of environmentally friendly products that engineers and designers should specify and the development and building industries must provide in this era of sustainability. ORVABLE GRASS° can be used in place of poured concrete and asphalt for a wide variety of applications. It is designed for use in areas where a permeable, vegetated vehicle access or parking surface is beneficial or required. In addition to driveways and parking stalls, other applications include emergency and service ,I..;C_ _. � More and more homeowners today want to do their part to insure a better tomorrow! Many homeowners today are looking for ways to reflect their environmental concerns in sustainable yet aesthetically pleasing home improvements. Along with other low impact development (LID) strategies, the use of DRIVABLE GRASS® as "GREEN' driveways, side yard panting access, garden paths and permeable patios provides a perfect opportunity to minimize storm water runoff and reduce heat island effect. RESIDENTIAL APPLICATIONS / •Y- y ALTERNATIVE INFILLS r`=t 41 �.I There are many reasons for choosing DRIVABLE GRASS° with an alternative infill. Whether it's environmental concem, an aesthetic choice, regional climate response or regulatory constraint, not everybody wants to grow turf grass. Alternative infills basically divide into two dosses: alternative planting and non -vegetated materials. Alternative plants for DRIVABLE GRASSO include ground covers and non -turf grasses. With alternative plants, the installation profile remains the same as with turf -grass; a mix of sand and organic material above and below the mats to act as a roofing zone. . In some cases the plant material can be seeded like turf grass, while others may require hand installation of plant plugs in the void spaces between the mat pads or even the periodic i removal of individual pads for installation of plant sizes up to a 4" pot. Watering requirements will depend on the plant material selected, but in most cases it will be significantly lower than for turf grass. Non -vegetated infills include crushed rock, sand, dirt, bark mulch and even artificial turf. Each of these products may be chosen for their particular properties, as well as the tact that they require no water. A one -inch layer of sand, without added organic material, is placed as a leveling base below the DRIVABLE GRASS® mat for non -vegetated infill. The sand base is placed over a landscape filter fabric to prevent weed growth. fp l R or 41 i • SAND GRAVEL DIRT �► 4 ij� •f w I* IN M doR wo wf \, ® WAR so cal BARK GROUND COVER ARTIFICIAL GRASS n ls1 v A ff �1. I b' LAB, 6 y vi'a. a1.I' I!i • S*o&1sUSr1L YM. J.a. Where reduced water consumption is a consideration, DRIVABLE GRASS° can be installed using alternative infills. ____ —_ -r. Strength and Durability: Soil Retention's DRIVABLE GRASS• product was just the soluton we were looking for. Providing the it ._ strength and durability we require �► while at the same time solving our i run off water issue." pow Oceanside Fire Chief - MA .. r '411k• .vim NOTE: For Storm Water Management Drivable Grass" Mats Applications Including Storage and Seed, Plug, Sod, Or Alternative or Inlill Infiltration: Alternative mtills, Gravel Base At Surface Backfill W/ 80%Well Graded Material, and Sub -Surface Drainage 4" Nominal Sand/20% Organic Material may be Required Compacri Sail Provide 1.5" Bedding Course of 80% @ Perimeter Well Graded Sand/20% Organic Material AV, V[fAv/ � , Compacted Base Depth `IL Per Soil Engineer Optional Geotextile I— NOTE Ai Ft hdy iaS Provide 80%Well Gradd Sand120%Organic I — Material for Surface huff and for Bedding =1 I1=lI —� -III=I = Material Pmvide 1.5-m Xfledoing Course R Depending onApplicadon Optional Geotextile Compacted Subgrade per Soil Engineer per Soils Engineer .................................................................................................. USCSCIassificaBal GW -Well Graded Gravels I SM - Silty Sands 6-10 ML - Inorganic silts of low plasticity GP - Poorly Graded Gravels SC -Clayey Sands CL - Inorganic: days of low plasticity GM - Silty Gravels MH - Inorganic silts of high plasticity GC -Clayey Gravels CH - Inorganic clays of High plasticity SW - Well Graded Sands SP - Poorly Graded Sands Typical R-Value Range 30-70 10-40 5-15 Firelane 6-8 6-10 10-12 _ Parking LOts Stalls 4-8 6-10 _ ----titt 8-12 Parking Lotsden it veledDrive Way 6-4 8-6 6-10 ResidentialDriveways0-4 2-6 6-10 Walkways 0 F0 0-4 NOTE: Existing subgrade and base materials are to be compacted prior to placement of me ORAABLE GRASS' . These recommendations are to be used as a general guide. Refer to your Civil or Geolcchnica/ engmeer for actual base thickness design. Recommendations were generated using Gushed Miscellaneous Base (CMBI as the thine/base material. omer types of base material on be used, CMB has a gravel laclor of GF= 1. 1. Actual base thickness will be dependant on the Traffic Index (III and fire Gravel Foctor(GFl generated by the Engineer of Record for the project based up site specific om itbns Estimated naffic index (fe values that were used for the gempahmi of the recommended base thickness kxdvitled in me table are: Flnalane 11-4.0, Parking stall 8=4.0. Traveled Way 71=55. Flier Fabric and subdraws, may be required for sods win a low when of permeability andstrengm. Soils net recommended for use as subgrade materialam the OL OH PT type soils. Smlmwaterrequkemenf5 may ultimatelygovem me design of the base thickness. Easier to install than interlocking concrete pavers! DRIVABLE GRASS® easily allows for difficult installations such as vertical curves and grade breaks to be achieved, due to its flexiblility. Its grid connected independent concrete pads are designed to flex and conform to Irregular ground surface contours along predefined linear grooves without coming apart. Easily handled by one person, the 2' x 2' mats are quickly installed and don't require mechanical compaction to hold them in place. For additional information, visit our website at www.soilratention.com Property Value Nominal Area LxWnR 24"x 24" x 1.5" _ Gross Area of each mat 4 s.f. Concrete Strength _ 5000 psi _ Weight of each mat 45 lbs Flexibility min. radius of curvature _ 12 in Plantable Area _ 60% 100 % for Sod Concrete SudaceArea 40% _ Concrete Gearing Area _ 88% Mats per pallet -. 60 Area covered per pallet 240 s.f. rPt .:r� _ ':tee ._✓Y- _ +` .� 1 , .. m F Sx. LEED Credits and Potential Point Contributions Section Intent/Application Example Uses Credit Points Alternative Parking capacity DRIVABLE GRASSd1 would allow 4.4 1 Transportation overflow parking that would not count for excess of local zoning requirements Site Development Prolect/Restore Habitat Overflow Parking Stalls, Bfoswale 5.1 1 Site Development Maximize Open Spaces Parking Stalls, Access Roads, 5.2 1 Walkways /Pathways Sformwater Design Quantity Control Bioswale, Trickle Channels, Parking 6.1. 1 ■ Areas, Vegetated Roof Sbrmwater Design Quality Control Credit Bioswale, Trickle Channels, Parking 6.2 1 Areas, Vegetated Roof Heat Lsland Effect Non -Roof Parking Areas and Access Roads 7.1 1 Heat Island Effect Roof Green Roof PathwaWErosion Control 7.2. 1- Water Efficient Reduce by 50% Use as a permeable surface/fitter to 1 2-4 Landscaping or No Potable Water collect water which can then be used Use or Irrigation for landscaping Use with alternate infills or drought tolerant groundcovers or as part of a Xeriscape w/gravel infill for erosion control a Recycled Content 10%/20% 45% Cement Replacement with 4 1.2 (Post -Consumer Fly Ash in Concrete Mix + 1/2 Pre- Consumer Regional Materials 10% / 20% Extracted We currently manufacture in several 5 1.2 Processed and states. Please contact us for locations. Manufactured Regionally InnovaflOn in Des* 1 1-5 BENEFITS LOW IMPACT DEVELOPMENT (LID) Drivable Grass provides a soft visual look. --- BEST MANAGEMENT _ PRACTICE (BMP) Long term effective solutions. --� C- DURABILITY Drivable Grass has a concrete _ compressive strength of 5,000 psi. The design allows Drivable Grass" to move up and down with a freeze/thaw cycle. STRENGTH Proven load capacity — see Oceanside Fire ' b Department and other test reports. FLEXIBILITY WITHOUT MEMORY . ,r Reinforcing grid and grooves in Drivable Grass' give it the ability to conform to uneven contours in the sub -base. 810-FILTRATION Insects and micro-organisms within the +- grass infill help to significantly break down pollutants in the stormwater. PERMEABILITY - Reduces site runoff, promoting ground water recharge and onsite storage. ROOT PENETRATION % _ Drivable Grass'- allows for superior root penetration into the underlying sub -grade T promoting heaghy growth. '— LOWER RUNOFF COEFFICIENT "C" Lpp Helps to reduce storm drain and inlet size. REDUCTION IN HEAT ISLAND EFFECT Light color and grass surface reflects solar radiation helping to cool the _ ---- - surroundings. f LESS EXCAVATION Requires less removal of sub -base than traditional pavers or thick blocks. WICK EASY INSTALLATION < T •>t'.+r Placement of 4 s.f. at a time. Drivable Grass, is installed in haft the time of . conventional pavers. 13 STORM WATER MANAGEMENT DRIVABLE GRASS- consists of a unique lattice -style structure that allows vegetation to grow through it while simultaneously providing a solid surface with strength comparable to more common paving materials. The permeable nature of DRIVABLE GRASSe enables precipitation to infiltrate into the underlying soil, thus increasing on -site storm water storage and minimizing runoff. Properly Value Run off coeRident Q Aggregatelrl0t 0.1-0.6' Grass Infrll 0-0.4" Infiltration rate (K imM Aggregate Infill 4-40' Grass In ill 1-4" INamirm's Rmtcham factor (c) - 0.02".03'/" NOTES: Depends on size, shape of aggregate used as inflll "Depends on amount and type of grass used Replace I conventional I detention basins and I , gain more I I v usable space! I ............ Beddingg Ccurse/ Hoot Zone [ Structural Base Section Ezsisbng Sub Grade Groundwater Table Filter Fabric as Required m DRIVABLE GRASS' Mats Adjacent Surface Slope Permeability Surface Storage Capacity Lower "C" Value Increase Time Concentration Bioliltration Storage/Detention Basin Infiltration Groundwater Recharge Adjacent Surface Existing Subgrade \— Filter Fabric as Required NOTE: Adjacent Surface Vanes Depending on Application 15 ,s 11 Protected by US and International Patents and Trademarks 40 bra Aft 44 4V # M IL 46►'�:. www.soilretention.com (800) 346-7995 Page is too large to OCR. Page is too large to OCR. Page is too large to OCR. Page is too large to OCR. Page is too large to OCR. au 47 56 64 7 37 X.- D-14 E- 14 F- 14 G- 14 H-14 Sl 1-14 J - 14 27 37 46 55 63 7 86 97 102 Lo Porte Airport CD E_ 3 E- 13 La Port g Airport -13- G-13 H-13 1-11 13 -13 -5 4 -13 \47 36 54 62 4 01 (0 H D 112� F A T SPENCER - 5 25 E - 12 12 R 44 -- �Ak 14D-11 ... E - 11 F-11 G-11 H-114 1 115.: -11 24 43 52 6 99 0- D-0 E 10 F- 10 G-101 H-10 10 TP L-10 IRMONT PARKWAY 33 FAIRMONT 42 51 PAR AY 59 1-9 9 P K L - 9 0 70 ell I-T.1 J90 -8 69 So 91 o 1-7 J-7 K-7 68 79 90 & �10 rj I - 6 J-6 K-6 67 78 8, .. X", ... J-5 K- IMPROVEMENTS LOCATION MAP INDEX MAP OF PROPOSED ((`\j i� LA PORTE DRAINAGE STUDY LA PORTE DRAINAGE STUDY LA PORTE, TEXAS LA PORTE, TEXAS O'NALLEY 0 CLAY, INC • L� IDIIf1II1' - ,LT . . � / �. -,� 11 ■ ;,��+.+. � y� ail fy - •� 30 \.., Tom• .. . . �.. m,mr�-•-mrtr� � tea..„ • mn e GH lilt WMN i f f � �. .. ... •-off ` _` '. -• 11 `���\�isr � �p � . .. +tee � \'�' � !I ► � I� Ali22 j �Ff Will Rel Iv- 40 ,006 0 _.Ya P 15.80 •... OEM ...• f JF� � �GI r• f a '77.11 _ a• 30 "'�,1' ■l }T.' I�1�# ,i� 1 ter, ��<� �,�#�. 1 �i �1'�_ _ .3,1.,E-.■ r �I '" . == r�l s II�INI 1 _ �� / ... • • • II 1 a� • . `gyr1 ,1/ • ,�iva7�7M.. 00 I Nim � �11 it ���► �� 111IML M&II1 • R jEA2F 1 - _ �,�—� a -� I „�. I `• ,� .�� � � � IBM ml NJ [, . ■ �I ■� it .. ter. �' -■ • -mot P.1,! e�h�► Ili � � ,� ` � � .. ■ �- �� 1• �� l y � �� � � � �� .1 I. Im f 3- I � � 1..� . .•.. _ ` Ir ■ � � � � r, � ��, III• w � � I' + � �� . • ' I�k'' I 13 � � III I'r ` '! �riaR � t �I I � �'� I ^ r ��L147ge�,: .,.ri i•_!131' _ �r.+.� � v.n .c-. _—� - off all � m�rtt iS - _t. .•�. :ice 1,. `�► ��� �+ ;. - -' le� . L�1I I��• ��. �■.®�!��1�� �n Isi� �„ rlI�I���I•.�ll®�� �n4. M���I• ! NA DATE OF PHOTOGRAPHY. APRIII= G'MALLEY 9 CLAY, INC. PROPOSED IMPROVEMENTS LA PORTE DRAINAGE STUDY F�c�� LA PORTE, TEXAS (SUB AREA F _ I l M p'IIG I•'Xr 1 - Q gs N l�IKr C% IAr u'RG Q� cc Q w = _ = < = = I to IF I 4Z N'•cP = �:' �i'//•••.. 0 i Lv • IAl LL _ I � � �_ I J o d-3.6 ROW-40 l µ, Por.lp u 0 0 Ax t ° w Fill Q25-110 �• °o b-4.0 d-3.7 ItROW- $-.000 1 IA, ROW-40/ \ \ P ' S-.0009 Q c�-/ •••;, fro ._ i Ord f L�9 n e A 4 • Qom/ i b-4.0 Jm e s Rq,W- le.e • q• (}}1� � lev roi a. do I•*y.� � LI - i4 _ I Ili '�! „• ��• • . • • • • {I�\ i 11 _ ii 11_ f I _ • ' •• III • • ' ' I! ",) 1, •• + * 4 \ �•_ �� �' •••• � I,� • Ill �� • f �t� •••. it . _ _� -• tff it •+r S- •••, I All II f `\ v • * • • # i • f • • K-� • • • • a ♦ •/////! • • • . f ii , , 9R i� • ' I � • •III ` •` + kt \ OATS OF PX CGRAPNY: MRILINEW O'NALIEY • CLAY, INC. PROPOSED IMPROVEMENTS LA PORTE DRAINAGE STUDY LA PORTE, TEXAS FT(D PROPOSED IMPROVEMENTS M,OMWHfy: I LA PORTE DRAINAGE STUDY 01rF or rearacMAVMv-nvnu meo LA PORTED TEXAS O'MALLEY 9 CLAY. INC. MATCH SHEET N-12OtLt zt 11 IIIIIIIIIIIIIIIIN /\ 5 O \ $!J \ SoP HIIIIIIIIIHIIIIIIIIIf_.u111H11HIl11MI1111111111111GIAll O.,O rFs i 6 U m l 1 1 u0 nnnip'1 § o i I I I� SU8 AR��Y ~ � '♦'�� Iv � � „L14` / � `� \ 6y\� IwF _ i ♦ ne _ w i/ MWII FIW.f/J Ij. Or _ 3-J' I a �j ♦ � � and � 1 �g� O IV o i �W• ■� a ♦r pd 111111111111111111111 IIIII,�IIIIIIIIIIIIIIIIH111111111 111111111111111 IIIIIIIIMI\O` 2 ♦ ti \ �,,.,,• � �. S B AREA 1-47 ♦♦ fig 1 MI ■ I �1 I= GATE OF YIIOTOGflaFNY: AFflIL iMM WMALLEY a CLAY, INC. I{. 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G ��—�' -- ' � 'r � � • RESIDENTALL - 1 tr`� (GC)GENERAL ' y.a 4 l 1 4 COMMERCIAL ' 'a \. ♦ _ F.l -a , �� ■ ��J• r x.4 111466 ACRES).. • as _ -:^T'+ _ _ —�-'^. y ;" (MAINSREE STREET ' ra - • — _ • 8 MAIN STREE VERLA — ( - (3660 ACRES) �. wra. ZONED USE PARKING " [ PROVISIONS ' , 1 .r RESIDENTIAL 37�SY e n 6 ,P �• COMMERCAL 6�SY iL (56 SV/AC) •4�. (M6 MSS)MAIN STREET (BOSVIAC) E 29110SY� 4a • �� � y `, Wp .a� F —T r:� NOTE:OTY ROUNDED TO NEAREST,OO SV _ f d •♦ • v n , ems• f aF /• " , I• • L � �_ I � �[ � CVs vE s.0 x.:laaw J �I .: . ���'•P^- � ' v: -* PL 's � � y.• wls i�5At ti ::• CobbFendley s Texas Registration No.274 . • L _ 13430 exas lout Texas 77040 • i � [e 1100 • _ 713.482.32421 fax 713.462.3262 1 www.ccbfan.con, • .. ., c_.d �? _ • : J08 NO.1012W ow, + I CITY OF LAPORTE ". y14 -� -�- '-/— -' LAPORTE, TEXAS ra " LAPORTE CONCRETE• S; PAVING PROGRAM _ __ LAND USE MAP& -=�_"*-� PARKING PROVISIONS ._. _ _ - - mNf®®fMl _ __" - _ — SCAE:1".W0• DRAWN BY:HL -• W yW, _ ,' y. v! .�■ fir•"` 186a1Tr __-. ' � -- DATE 3/16/11 SHEET No.: 1 of Pit suaacr er: — ,r141�E4ln19 - 'a�4'. F B NO: U1' NO: Client City of LaPorte Project Name: LaPorte Concrete Paving Program Date: 4/18/2011 Sf3f�■ CobbFendley OVERALL PROJECT PHASE 1 PHASE 2 PHASE 7 PHASE 1 PHASES PHASE 8 EeT Ban Daaciption llrit oul"I" UrIt Price Ertatded Price oumaity E te, Prim Ouattity EtlerciW Price Ouwmty Extended Price OUaaity Extended Price 0.0" EtWXW Price G-ar" Extended Price BASE BID ITEMS: For 639 STA. sl Reedway GENERAL 1 Mobil®tion LS 1 S 1270000.00 S 1276000.00 1 S 1278000.00 1 S 1278000.00 1 S 1278000.00 1 S 1278000.00 1 3 1278000.00 1 s 1218000.W 2 TrafBe Cored aciR LS 1 3 839000.00 S 839000.W 1 5 639000.00 1 $ W9 WO.W 1 S 639000.00 1 S a39000.00 1 $ sm000m 1 s 639000.W 3 Remove aMR all LB 1 S 223650.00 S 22365D.W 1 $ 2236W.00 1 S 2236W.00 1 S M3 .W 1 S 223650.00 1 S 22365000 1 s 223650.00 4 C antl LS 1 S 191 700.00 $ 191 700.00 1 $ 191 700.00 1 f 191 700.00 1 s 191 700.00 1 s 191 700.00 1 s 191.700.00 1 $ 191.700.00 5 SWPPp Prot tl LS 1 3 127 B00.00 S 127 BW.00 1 s 127 B00.00 1 3 127600.00 1 S 127 ". W 1 f 127 800.00 1 $ 127 800.00 1 5 127B00.00 8 SY 224 000 s 3.50 S 704 000.00 1 S 3.50 1 S 3.50 1 3 3.50 1 S 3.50 1 S 3.50 1 $ 3.50 GENERAL ITEM SUBTOTAL s 3,241,150.00 s 2,460,7S3.50 $ 2.480,153.60 f 4450,163.50 $ 2,460,153.50 $ 1460,157.30 s 2,4e0,163.50 PAVING 7 RoscWsy Exwelbn STA 639 3 1600.00 $ 1150200.00 1 S 1900.00 1 f 1900.00 1 3 181XI.W 1 3 1a00.00 1 $ 1800.00 1 $ 1800.00 B T Reidorced Gavels PevwwoL mnlPleU-if Once SY 84000 S 45.00 S 3,780,000.00 1 $ 45.00 1 S 45.00 1 s 45.00 1 5 45.00 1 3 4500 1 s 45.00 9 8' Reirdamd Cavae Pavarsp, mlpMsln P180, SY /35200 s 35.00 s 4.732,000.00 1 s 35.00 1 $ 35.00 1 s 35.00 1 S 35.00 1 f MOD 1 S 35.00 9 w Linty SMEirveE swwaft SY 248000 s 2.5D S 622 500.00 1 5 2.50 1 s 2.50 1 3 2.50 1 $ 2.50 1 s 2.50 1 $ 2.50 10 S Reitlaced Ca sCUE LF 127800 S 3.00 $ 383400.00 1 5 3.00 1 s 3.OD 1 $ 3.00 1 $ 3.00 1 S 3.00 1 3 3.00 11 Line 8% TON 54W S 180.00 $ 861000.00 1 $ 160.00 1 s 160.00 1 $ 160.00 1 s 1W.W 1 3 1H0.00 1 3 1W.W 12 7' Re4/arced Cccaete Onveways SY 10000 S 47.00 3 470000.00 1 3 47.00 1 S 47.00 1 $ 47.00 1 s 47.00 1 S 47.W I s 47.00 13 6' Reiyamd Canaete Odowas SY 41100 3 37.00 S 1520700.00 1 $ 37.W 1 S 37.00 1 s 37.00 1 S 37.00 1 $ 37.W 1 s 37.00 11 Ames M Grecl i6ale, Mayebs, s1d VeM A*md b GnMe LS 1 $ 95.850.00 3 95,850.00 1 s 95.850.00 1 $ 95,850.00 1 f 95,BSO.W 1 S 95.850.00 1 $ 95,850.00 1 3 95.650.00 15 1' Ca s S' SF 544.000 $ 4.50 $ 2,448,000.00 1 s 4.50 1 s 4.50 1 f 4.50 1 f 4.50 .1 f 4.50 1 S 4.50 18 CUE EA 340 $ 1500.00 $ 510000.00 1 S 1500.00 1 f 1500.00 1 3 1500.00 1 $ 1500.00 1 S 1500,00 1 S 1500.00 17 5' Gavels Trail (Bar 10 8 wide, Carpebi� Piece SF 95 OW s 5.00 s 475,OW.00 1 S 42.00 1 S 42.00 1 $ 42.00 1 $ 4200 1 $ 4200 1 $ 42.00 18 Pe" OBS"K 6'CrxvNe Pevarsa, 8' Curb atl 6' SY 13000 3 42.W f 548,000.00 1 f 42.001 S 42.001 f 42.001 $ 42W 1 3 42.001 S 42.00 PAVING ITEM SUBTOTAL s 17,597,650.00 S M,655.W $ 99,668.W f 99,66S.00 $ 99,66e.00 s a9,5sSW f 9f.56s.00 DEMOLITION 19 Racove and Dispose of Pavenma• Sb'BK Drives atl S All Tlliduasaes 1 11 SY IGZ90D 3 4.00 $ 651,600,00 1 $ 4.00 1 3 4.W 1 f 4.00 1 s 4.00 1 S 4.00 1 3 4.00 20 Remove end Dispose of Slam Se - pipe fEa 15' Brld lean LF 3.200 S 8.00 S 25,600.00 1 3 8.00 1 $ 8.00 1 s SOD 1 S 8.00 1 5 600 1 s 0.00 21 Rand o» al DnpSlam Sewm -pipe ersn Ir 1B' LF 9,3W S 10.00 S 93.000.00 1 f 10.00 1 f 10.W 1 f 10.00 1 $ 10.00 1 $ 10.00 1 S - 10.00 22 Remove old oiapose d Stam Senn - pipe stre 24' LF 15800 S 12.00 $ 187,2W.W 1 $ 12.00 1 f 12.00 1 s 12W 1 $ 12. W 1 $ 12. W 1 $ 12.00 23 and Oiapoasd Slam Saws -pips R301-42' size ra 30' LF 5 BW s 1 4.W S 7a,4W.W 1 3 14.W 1 S 14.00 1 3 14.00 1 f 14.00 1 S 14.00 1 S 14.00 DEMOLITION ITEM SUBTOTAL S 1,O73.s00.W s 40.00 f 48.00 3 48.00 s 48.00 $ 48.00 f 48.W STORM SEWER 23 Mels and Llertx0es(Ce .) - All types end EA 990 S 2600.W 3 2,54a,000.W 1 S 20.00 1 $ 20.W 1 3 20.00 1 S 20.W 1 $ 20.00 1 S 20.00 23 17 Drain Basim EA 960 $ 675.03 S 648000.00 1 s 20.00 1 $ W.W 1 S 20.00 1 $ 20.00 1 s 20.00 1 $ 20.00 24 B'PVC Smnn Sewer LF 352DO I $ 20.00 3 704000.00 1- f 20.00 1 $ 20.00 1 s 20.00 1 S 20.00 1 s 20.00 1 $ 20.00 25 24'Storm Sewer LF 24200 f 55.00 S 1331000.00 1 S 55.00 1 3 55.00 1 s 55.00 1 3 55.00 1 s 55.00 1 S 55.00 28 3('Stcrm Sewa LF 4.400 s 70.00 $ 308000.00 1 s 70.00 1 s 70.00 1 $ 70.00 1 $ 70.130 1 S 70,00 1 s 70.00 27 36-St Sewn LF 8,500 5 80.00 s 683000.W 1 S 80.00 1 s W.W 1 S W.W 1 $ 80.00 1 3 SD.W 1 s 80.00 28 47Smrm Sews LF 1000 f 90.00 S 162000.00 1 $ 90.00 1 s 90.00 1 $ 90.W 1 3 W.W 1 f 90.W 1 f 90.00 29 4r Storm Ssesr LF 1W $ 1W.W $ 210000.OD 1 S 100.00 1 3 1W.W 1 i 100.00 1 s 100.00 1 S 100.00 1 f 1W.W 30 5P Sbrm Saws LF 6w $ 150.00 5 W000.W 1 f 150.00 1 S 150.00 1 S 150.00 1 $ 150.W 1 3 150.00 1 S 150.W 31 60'SumSewer LF 1.400 S 210.00 f 294000.00 1 $ 55.00 1 f 55.00 1 f 55.W 1 S 65.W 1 3 SS.W 1 S 55.W m Saws LF 1W S 2W.W S 26000.00 1 i 70.W 1 S 70.W 1 s 70.W 1 f 70.W 1 f 70.W 1 3 70.00 m SewsLF 1" S 3W.W S X)0,=.W 1 S 90.00 1 3 80.00 1 s 80.00 1 3 80.00 1 S KOO 1 s WOO m Sews LF 1W S 325.W S 32500.00 1 S 90.00 1 S 90.00 1 S 90.W 1 s 90.W 1 3 90.W 1 S 90.00 m Saws "S== LF SW f 425.W f 2125W.W 1 S 1W.W 1 3 1W.W 1S 100.00 1 s 100.00 1 3 100.00 1 S 100.00 m Sower LF 1,OD0 S 450.W s 4500W.W 1 S 150.W 1 S 150.W 1 S 150.W 1 f 150.W 1 3 150.W 1 5 1W.Wrom Saes LF 1,000 5 475.00 s 4]SWD.W 1 s 1W.03 1 S 100.00 1 3 100.00 1 S 100.00 1 S 100.00 1 S 1W.Wrm Sewer LF 7W s 500.00 S 350 OOO.W 1 5 150.00 1 3 150.00 1 S 150.00 1 S 150.00 1 S 150.00 1 f 150.W STORM SEWER ITEM SUBTOTAL s 8,821,01:0.00 $ 6115.00 S 663.00 S 665.00 s 565.00 s 56S.W f 656.00 MISC. UTILITY ITEM SUBTOTAL 39 Gavel Utilay AclusIrroarts S 400000.00 $ 40=0D 1 3 400000.00 1 $ 400000.W 1 s 4W000.00 1 t 400000.00 1 f 400000.00 1 S 400000.00 MISC UTILITY ITEM SUBTOTAL $ 4W,000.00 $ 31.095,SW.00 3 400.000.00 $ 2,960,331.50 f 400,000.W $ 2,960,334.50 s 400,0W.00 $ 2,950,334.60 S 400.000.00 $ 2,960,37460 S 400,000.00 $ 2,950,1 w f 4W,=.00 S 2,960,371.50 BASE 910 ITEM SUBTOTAL Insad and CenU iaa 1I LS 1 $ 515000.00 f 515,000.00 0 $ 0 f 0 S 0 f 0 f 0 5 2 Enpir.h)rQ(Deaipn end Cdemx:tian indudinp Geo4edt LS 1 $ 4,150,000.W f 4,150.000.00 0 f - 0 3 - 0 f - 0 f - 0 f - 0 3 - 3 'ss 20% LS 1 S 6219720.W S 8219 ]20.00 0 S 0 f 0 S 0 S 0 f 0 S Enpin4sinp, SUvalirrp, and CmUn9ency Item SubtoUl f ",a "2 f f f f f S ESTIMATED TOTAL COST $ 41 Sa3 320.00 1 1 XREFIJ I NREFIJ I #REFI #REFI1 I #REFI #REFI D:Na1201U12056.1a,pWe_mv 9ENGWEATMCced Estimete_d 11. s Pepe 1 Client City of LaPorte Project Name: LaPorte Concrete Paving Program Date: 4/18/2011 ��■ .:M Co Fendley �� OVERALL PROJECT CURRENTLY INCLUDED IN OVERALL BASE CASE (M CONC. WI CURB) OPTION'A' ONE-WAY CASE (12 CONC. WIOUT CURB) OPTION'B' MID -BLOCK BOLLARDOW (117 CONC. W/pUT CURB TWO WAY ST.) OPTION 'Is' YIT GRASSBOLLARDCASE (20'GRASSYPAVER WIOUT AT ham ham Dsaaiptiad Unit Quark" Unit Prim Extended Price Oumtity Extended Price o-ndy Extended Prim Oaaa+y Extadded Prim 0-" Exde des Rim BASE BID REVS: For 639 STA. of RoeAvsy GENERAL 1 MONIUMbOn LSULD:0 3 1278000.00 S +278000.00 0 f 0 3 0 3 0 S 2 Trefllc Canwl addR atiors LS3 839000.00 f 639000.00 0 S 0 S 0 3 0 $ 3 Rertlws adtlR all LS3 223650.00 3 22385000 0 $ 0 3 0 $ 0 S 1 and LS3 191700.00 f 191700.00 0 S 0 3 0 f 0 $ 5 BWPPP Pree 1. LSS 127 800.00 S 127 800.00 0 S 0 3 0 $ 0 $ 6 Y $ 3.W1 3 78400RW 0 S 0 3 0 S 0 3 GENERAL REM SUBTOTAL S 3.244.150.00 S - 6 - f - S PAVING ] Roadey Edzevada STA 839 $ 1800.00 f 1150200.00 0 S 0 3 0 f 0 $ 8 T Rededamd Concrete Revenues, mndplete SY 84 000 S 45.00 3 3,780.000.00 0 S - 0 3 - 0 S - 0 $ - 9 S' Reinforced Concrete Pumpers, cxxn*teary place SY 135200 S 35.00 3 4.732.000.00 22,050 S T71,750.00 9.450 S 330.750.00 15,750 $ 551,250.00 15.750 3 551,250.00 9 S'Lane Stiblee0 SuIcgrade SY 249000 3 2.50 3 82250D.00 0 3 0 S 0 S 0 3 10 e- Re enforced Canoe Csb LF 127 S00 3 3.00 3 383 400.00 14,000 S 42 000.00 0 3 0 3 0 S 11 L'mro 8% TON 5400 S 160.00 $ 854000.00 0 f 0 f 0 S 0 S 12 7ReirXacad Concrete SY 10000 3 47.00 $ 470000.00 0 $ 0 f 0 3 0 S 13 S' Reinforced Cavate Drieewly, SY 41100 S 37.00 3 1520700A0 0 $ 0 3 0 3 0 S 14 AcItnt Es SWV Inlets, MaYdoles, and VeIve Emma w Cxade LS 1 S 95,850.00 $ 95,850.00 0 S - 0 S - 0 3 - 0 $ - 15 1' Caicrets Sidewal SF WOW 3 4.50 S 2 00 448 0.00 0 3 0 3 0 3 0 S - 16 Curb EA 340 s 1500.Oo 3 510000.00 0 It 0 S 0 3 0 S 17 5' Cacrea Trail (B W 10 8 wide Capaeit- p1a» SF 95000 S 5.00 00 f 475,0.00 0 $ - 0 3 - 0 3 - 0 f - 1B PMaq 06Street. 8' Cowes PavartenL 8' Cdab and 8' BY 13000 f 1200 $ 548,000.00 0 f - 0 f - 0 f - 0 It- PAVING REM SUBTOTAL S 17,697,650.00 S 813,750.00 0 f 330,760.00 f 651,250.00 f 651.260.00 DEMOLITION 19 Renove add Dispose of Pavmere, S"K Dram and SidlysWilk, All Thftladnaes 02221 BY 162,900 $ 4.0) $ 651,600.OD 0 $ - 0 S - 0 f - 0 3 - 20 Renvn and Dispox or Slam Sewn - pipe size 1S atl Iesa LF 3.200 3 8.00 S 25.600.00 0 $ - 0 $ - 0 3 - 0 S - 21 Rerove end Dispose of Bran sewer - Pipe size 18' LF 9.300 $ 10.00 It93,ODO.OD 0 S - 0 S - 0 S - 0 f - 12 Rendova add Dispose of &am Sews - pipe see N' LF 15600 f 12.00 3 15/,200.00 0 f - 0 s - 0 f - 0 S - 23 Rarove aW Dispose of Storm Senor - pips see 30'<7 LF 5 600 S 14.00 $ 78,400.00 0 It 0 3 - 0 It 0 S - DEMOLITION ITEM SUBTOTAL S 1,035,800.00 S - i - S - 3 - STORM SEWER 23 Inlets add Martobs(Conn) - All types and EA 960 s 2.600.00 $ 2,548,000.00 0 $ - 0 S - 0 S - 0 S - 23 17- Drabs Bess EA 960 3 675.00 S 64B 000.00 0 S 0 S 0 S 0 3 24 a" PVC Storm Saws LF 35200 s 2000 $ 70400DW 0 S o S 0 f 0 S 25 2P Storm Sewer LF 24.200 $ 55.00 3 1 331 000.00 0 S 0 It 0 $ 0 f 2B 37 Senn LF 4.400 S 70.00 S 308000.00 0 S 0 f 0 S 0 S 27 W Sturm Sewer LF 8 500 $ 90.00 s 680 OOO.OD 0 3 0 $ 0 f 0 S 28 42- Scam Sews LF 1 600 3 90.00 s 182 000.00 0 $ 0 $ 0 S 0 $ 29 4r Stain Sewer LF 2,100 $ 100.00 S 210 000.00 0 S 0 3 0 f 0 f 30 5P Storm Sonar LF 60D $ 150.00 S 90 000.00 0 3 0 $ 0 f 0 3 - 31 BP Storm Senor LF 1.400 $ 210.00 f 294 000.00 0 S 0 $ 0 f 0 S 32 BS' Storm Sens LF 100 $ 280.00 f 28 000.00 0 f 0 S 0 S 0 i 37 72'SWm Sews LF 1000 $ 300.00 S 300000.00 0 S 0 3 0 $ - 0 S 31 78' Storm Sews LF 100 S 325.00 S 32 500.00 0 f 0 S 0 $ 0 f 35 84' Storm Sens Lt- 500 S 425.00 3 212 500.00 0 S 0 3 0 3 0 3 3B 96- Stan saws LF 1 000 S 450.00 $ 450 000A0 0 S 0 S 0 s 0 S 37 1W Storm Sawa LF 1000 3 175.00 f 475000.00 0 $ 0 3 0 $ - 0 S - 38 114' Storm Sevva LF 700 3 500.00 S 350 000.00 0 S 0 3 0 3 0 $ STORM SEWER REM SUBTOTAL f 8,821,000.00 $ - It - f - S - MISC. UTILITY ITEMS 39 Geneel Udli LS 1 S 40D00D.00 S 400000,00 0 S 0 S 0 S 0 3 MISC UTILITY REM SUBTOTAL f stIct. 0.00 S 31,098,600.00 S - S 813,750.00 S - f 330.760.00 $ - S 551,250.00 S ' i 651,250.00 BASE BID REM SUBTOTAL ALTERNATE PAVEMENT REDUCTION ITEMS 1 Peves Zarnets SFNOE S 1.50 It o 3 0 S 0 f 140 DOD 3 210000.00 2 S'CwIMd Cadvae TON$ 30.00 f 0 S 0 3 0 $ 5000 S 150000.00 3 7CNen SeM TON3 20.00 It 0 S 0 S 0 S 1700 3 34000,00 BaltaW LS f 10000.00 f 0 3 0 f 0 S + S 10000.00 ALTERNATE PAVING REDUCTION ITEM SUBTOTAL Is $ f f S 404,000.OU BASE PLUS ALTERNATE BID nEM TOTAL FOR SCENARIO f 31,OB6,600.00 f 813,750.00 S 330,750.00 f 651,250.00 S 955,250.00 0:1Ca12010112056.iapa+e_tM %ENGWEATMC4al EstvmM_1 II.dda Pao