1999-12-13 Regular Meeting, Workshop Meeting, and Public Hearing

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e e volume is approximately 900 vpd northbound south of Fairmont Parkway, and 2,350 vpd southbound north of Fairmont Parkway. On 14th Street the average traffic volume is approximately 490 vpd southbound north of Fairmont Parkway. lRoglhlt-of-Way - The existing right-of-way on Fairmont Parkway varies from 263 feet wide at 16th Street to 125 feet wide at SH 146. The existing right-of-way along Fairmont Parkway is adequate for the proposed roadway improvements with the exception of additional corner clips that are needed at the intersections of 13th, 14th, and 16th Street. Additional right-of-way will also be required north and south along 16th Street to accommodate the roadway improvements. Dl7'aoll1age - Stormwater runoff from the areas adjacent to F airmont Parkway, 16th Street, and 14th Street is now collected through a combination of roadside ditches, a large median ditch, and underground storm sewers. This water eventually flows east under SH 146 and discharges into Little Cedar Bayou. l?opeOines - There is an existing Exxon Pipeline Company easement along the south side of Fairmont Parkway, from UPRR to 16th Street, which contains one 10" nitrogen pipeline. There is an existing Exxon Pipeline Company easement along the west side of 16th Street north and south of Fairmont Parkway which contains two 8" nitrogen pipelines and both cross Fairmont Parkway. Ul~mties - There are existing water and sewer lines within the Fairmont Parkway and 16th Street right-of-way which are maintained by the City and the La Porte Area Water Authority. Reliant Energy (HL & P) only has aerial power lines within the project lim its. Entex owns gas lines within the project lim its, and Southwestern Bell owns underground cables within the Fairmont Parkway project limits. ROA-IOWA" DIES~GN CRITERIA Roadway geometry recommendations, cross-street turning radii, auxiliary (turn) lanes, median openings, lane assignments, and the design of 16th Street were all provided in the Traffic Impact Analysis. The roadway design speed is 45 MPH for Fairmont Parkwal and an 18-wheeler design vehicle was used for the design of turning radii at 16 Street and at SH 146. IORADNAGE DES~GN CRITERIA The project will be designed using a combination of roadside ditches, median ditches, and underground storm sewer. City of Houston 3-year storm design curves will be used to size the storm sewer system. A drainage analysis was performed to determine the affects this roadway project (additional concrete impervious areas) would have on Little Cedar Bayou. After modeling the Page 2 of 5