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IğƩƩźƭ /ƚǒƓƷǤ wĻƨǒźƩĻƒĻƓƷLƒƦğĭƷ Ʒƚ \[ğ tƚƩƷĻ <br />Minimal impact. Systems are <br />Atlas 14 rainfall rates to size storm water <br />designed using current rainfall <br />conveyance and detention systems <br />characteristics. <br />Increases detention volume <br />0.55 ac-ft/ac detention rate <br />requirement by 22%. <br />Prohibit detention design using hydrograph Minimal impact. Rarely used for <br />timingdesign in COLP. <br />No net fill in the current 500-yr floodplainTo be explained by HCFCD/EHRA. <br />Finished floor elevation established at or <br />To be explained by HCFCD/EHRA. <br />waterproofed to the 500-yr flood elevation <br />(c)Presentation, discussion, and possible action regarding prioritization of current and future <br />drainage projects.\[Lorenzo Wingate, Assistant Director of Public Works\] <br />Mr. Wingateprovided a list of current projects for the Committee to prioritize or add to. The current list is: <br />PriorityProject NameProject Phase (% Complete)Total % <br />Complete <br />1Brookglen Drainage ImprovementsFeasibility (0%)0% <br />Bayside Terrace Drainage <br />2Feasibility (85%)30% <br />Improvements <br />3F101-06-00 ImprovementsPreliminary Engineering (25%)25% <br />4Little Cedar Bayou (F216) Phase 3Preliminary Engineering (0%)10% <br />th <br />6Street (North Side Neighborhood <br />5Design (5%)5% <br />Drainage Improvement Project) <br />Southside Neighborhood Drainage <br />6Final Design (90%)60% <br />Improvements; <br />7Project Complete100% <br />Mr. Wingate noted Bay Colony has basically been dealt with since the list was put together and the <br />Committee agreed to flip the order of Mission Drive and Sylvan Beach on the remaining list(below), <br />thereby prioritizing additional drainage projects for future consideration. <br />Project NameProject Background <br />Priority <br />This would be a continuation of previously <br />completed drainage improvements along the <br />Battleground Estates F101-00-00 drainage channel to mitigate flooding <br />8 <br />Phase IInorth of N P Street with the Battleground Estates <br />subdivision. Project is prefunded; $65,000 for <br />preliminary design. <br />Several complaints received about street flooding <br />Roseberry Drive Drainage along Roseberry. The Drainage Committee <br />9 <br />Improvementsconsented to further evaluation of the Roseberry <br />drainage system at the August 12, 2019 meeting. <br />Mission Drive Drainage Storm sewer system within Monument Estates <br />11 <br />Improvementssubdivision holds water because conveyance <br />August10,2020-Drainage and Flooding Committee Minutes <br /> <br />