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Hydraulic Analysis for Sens Road From 300' North of Spencer HWY. to 300' North of <br />Avenue "H" HCPID Pin Cl/102/1002/005; Little Cedar Bayou (F216-00-00) & HCFCD <br />Channel A104-07-00 <br />Prepared For: Harris County Flood Control District <br />Prepared By: Binkley & Barfield, Inc. Consulting Engineers <br />February 2005 <br />Signed By: Joel R. Colwell <br />The current analysis addresses detention requirements for mitigation of increased flows <br />from the proposed improvements to Sens Road, Bay Area Boulevard and Fairmonth <br />Parkway. Sens Road will be designed with a storm sewer system that diverts a substantial <br />amount of storm water flow to the south of Spencer Highway system, continuing into the <br />proposed median ditch at Bay Area Boulevard, and into HCFCD A104-07-00. The <br />increase flows from this combination of projects will require the installation of a 155 <br />acre-foot detention basin downstream of Fairmont Parkway near the south side of the first <br />major rail crossing of channel A104-07-00. There may be a need for a regional pond in <br />this area to accommodate future drainage improvements to the area. The <br />recommendation is made that the drainage from Sens Road, Fairmont Parkway, Bay Area <br />Boulevard, and A104-07-00 combined and this would require only one detention facility, <br />with a single inflow weir and outflow structure. The 80 acre site is much larger than the <br />area required for the detention discussed but can possibly serve as a regional facility. <br />