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<br />k lot z ~~~ ass 0 cia t e 5 <br /> <br />moderately large storm events which exceed the City's standard design frequency for storm <br />sewers. Swales, in effect, enhance local drainage system capabilities. Relief swale projects will <br />reqUIre only limited coordination with the Harris County Flood Control District for <br />implementation. Twelve relief swales, sometimes constructed in conjunction with sewer system <br />outfall improvements, are recommended, as follows: <br /> <br />Recommended Relief Swale Projects <br /> <br />Project Subdivision! Area Type of Improvement Project COST/BENEFIT: <br />ill Benefiting Construction Construction Cost <br /> Cost Per Loss <br /> Removed! <br />1 Pinegrove Valley Relief Swale $6,000 $140 <br />2 Brookglen Relief Swales & Outfall Pipe Upgrade $95,000 $350 <br />3 Fairmont Park West Relief Swales & Outfall Pipe Upgrade $57,000 $370 <br />4 Glen Meadow Relief Swales & Outfall Pipe Upgrade $30,000 $540 <br />5 Meadow Park Relief Swales & Outfall Pipe Upgrade $13,000 $540 <br />6 Fairmont Park Relief Swales & Outfall Pipe Upgrade $19,000 $560 <br />7 Creekmont Section 1 Relief Swale & Outfall Pipe Upgrade $34,000 $610 <br />8 Fairmont Park East Relief Swales & Outfall Pipe Upgrade $65,000 $860 <br />9 Spencer Highway Relief Swale $30,000 $1,360 <br />10 Villa Del Rancho Relief Swale $24,000 $2,670 <br />11 Battleground Estates Relief Swale $35,000 $17,500 <br />12 Old La Porte Relief Swale & Outfall Pipe Upgrade $336,000 $21,000 <br /> Total 12 Projects $744,000 <br /> <br />1 Total construction cost divided by the number of structures that have been reported in the past to have flooded <br />and for which the recommended project will alleviate flooding in the future. <br /> <br />Construction costs for the above recommended relief swales projects include right-of-way costs <br />assuming right-of-way can be placed on existing open land or the property line between adjacent <br />residential lots. These projects should be given high priority for construction. <br /> <br />Additional details about these projects are given in Table ES-l, while the project locations are <br />shown in Figures ES-l to ES-6 (these table and figures as provided at the end of this summary). <br />ES-2 <br /> <br />Klotz Associates Project No. 0127.008.000 <br />January 2009 <br /> <br />La Porte Citywide Drainage Study <br />City of La Porte <br />