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Hydraulic Analysis for Little Cedar Bayou Watershed HCFCD Unit F216-00-00 <br />Prepared For: Harris County Flood Control District <br />Prepared By: Binkley & Barfield, Inc. Consulting Engineers <br />January 2000 <br />Location: Bay from West Fairmont Parkway pass Spencer Highway. <br />The addition off linear detention to Little Cedar Bayou upstream of SH 146 can produce <br />a substantial flood control benefit, without adverse effect to the Little Cedar Bayou or <br />adjoining areas. Little Cedar Bayou is within the city limits of the City of La Porte, <br />Texas, and includes 3.2 square miles of land that is approximately half developed. There <br />is an even mixture of commercial and residential development within the watershed, with <br />the bayou running through the more densely developed areas of LaPorte. Little Cedar <br />Bayou is a narrow, winding earthen channel that was straightened and improved with <br />concrete slope paving. Most of the bridge crossing serves as restrictions to the flow, <br />especially at SH 146 where debris collects on a regular basis. The analysis of Little Cedar <br />Bayou watershed revealed that a definite flood control benefit could be gained from <br />implementing channel improvements upstream of SH 146. The proposed improvements <br />that were analyzed in this report included a linear detention pond between SH 146 and <br />"B" Street, lowering the flow line upstream of SH 146, and reshaping the side slopes to <br />3:1. Two proposed projects were analyzed. The first project included improvements up to <br />the Southern Pacific Railroad. The second project included improvements up to Sens <br />Road. The improvements would cost 3.2 million. HEC 1 and HEC 2 where used for this <br />analysis. <br />