10-27-14 Regular Meeting of La Porte City Council

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REQUEST FOR CITY COUNCIL AGENDA ITEMREQUEST FOR CITY COUNCIL AGENDA ITEM October 27, 2014October 27, 2014AppropriationAppropriation Agenda Date Requested:Agenda Date Requested: Drainage (019) Drainage (019) D. Mick D. Mick Source of Funds:Source of Funds: Requested By: Account Number:Account Number: Public Works Public Works Department: 120,000 120,000 Amount Budgeted:Amount Budgeted: Report:Resolution:Resolution:Ordinance:Ordinance: $98,900 (contract) $98,900 (contract) Other: Amount Requested:Amount Requested: $7,000 (incidentials) $7,000 (incidentials) Attachments :Attachments : Budgeted Item:Budgeted Item:YESYESNONO 1. Plan Sheet1. Plan Sheet 2. Bid Tabulation2. Bid Tabulation 3. Engineers Recommendation3. Engineers Recommendation SUMMARY & RECOMMENDATIONSSUMMARY & RECOMMENDATIONS The West D Street Ditch Improvement project includes reshaping the drainage ditch located in the unimproved The West D Street Ditch Improvement project includes reshaping the drainage ditch located in the unimproved thth West D Street rightWest D Street right--ofof--way between Hwy 146 S and 8way between Hwy 146 S and 8 Street. The FY 15 project budget is $120,000. Street. The FY 15 project budget is $120,000. (Note: The project bid packet was titled (Note: The project bid packet was titled ““Broadway and D Street Drainage ProjectBroadway and D Street Drainage Project””. . The West D Street The West D Street improvement (only) is included with this bid. The city/consultant design services contract includes this West D improvement (only) is included with this bid. The city/consultant design services contract includes this West D Street ditch improvement and along with future storm drainage improvements on S. Broadway to be designed and Street ditch improvement and along with future storm drainage improvements on S. Broadway to be designed and constructed with a future project.)constructed with a future project.) Bid #14033 was advertised in the Bay Area Observer on Sept 25 & Oct 2, posted on Public Purchase, City of La Bid #14033 was advertised in the Bay Area Observer on Sept 25 & Oct 2, posted on Public Purchase, City of La Porte’s website and Civcast. Staff received three bids, which were opened October 10, 2014. Brooks Concrete s website and Civcast. Staff received three bids, which were opened October 10, 2014. Brooks Concrete Inc. submitted the lowest qualified bid at $88,305.50. Previous Brooks Concrete Inc. projects completed for the Inc. submitted the lowest qualified bid at $88,305.50. Previous Brooks Concrete Inc. projects completed for the city include the FY 13 Shady River Road and the FY 13 concrete street and drainage repair projects. Staff city include the FY 13 Shady River Road and the FY 13 concrete street and drainage repair projects. Staff recommends the award to Brooks Concrete in the amount $88,305.50 plus a 12% contingency for a total allocation recommends the award to Brooks Concrete in the amount $88,305.50 plus a 12% contingency for a total allocation for the construction contract equal to $98,900.00. for the construction contract equal to $98,900.00. thth Benefits: The existing channel slope is flat and the storm sewer outfalls outletting at 8 The existing channel slope is flat and the storm sewer outfalls outletting at 8 Street partially silted in. Street partially silted in. The existing 1:1 to 1.7:1 slopes along the south bank is unstable and prone to erosion. The project design includes The existing 1:1 to 1.7:1 slopes along the south bank is unstable and prone to erosion. The project design includes a concrete flowline to accommodate streets division equipment needed to better maintain the flowline and concrete a concrete flowline to accommodate streets division equipment needed to better maintain the flowline and concrete slopes on the south side to support the south ditch slope. slopes on the south side to support the south ditch slope. Liabilities of Status Quo:Liabilities of Status Quo: The south embankment, also supporting the north end of the parking lot curb located The south embankment, also supporting the north end of the parking lot curb located thth at the top of the bank, is sloughing and unstable. The silt buildat the top of the bank, is sloughing and unstable. The silt build--up at the discharge end of the 8up at the discharge end of the 8 Street storm Street storm sewers and the 6sewers and the 6’’x 6x 6’’inlet at Hwy 146 S may negatively impact the storm water capacity of these facilities. inlet at Hwy 146 S may negatively impact the storm water capacity of these facilities. Operating Costs:Operating Costs: No appreciable difference for the life of the improvements. No appreciable difference for the life of the improvements.