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REQUEST FOR DRAINAGE & FLOODING COMMITEEAGENDA ITEM Appropriation Agenda Date Requested:March 13, 2023 Source of Funds:N/A Requested By:Lorenzo Wingate, Asst. Director Department:Public Works Account Number:N/A Amount Budgeted:N/A ReportResolutionOrdinance Amount Requested:N/A Exhibits:Future Brookglen Improvements Budgeted Item:YesNo Presentation SUMMARY & RECOMMENDATION The Brookglensubdivision is located within the Armand Bayou Watershed (HCFCD Unit No. B100-00-00). The Brookglen sub-division had significant FEMA flood insurance claims during a June 1981 storm, Tropical Storm Alison, and Hurricane Harvey, with over 100 structures inundated duringeach event. Post Tropical Storm Alison, the Harris County Flood Control District (HCFCD) began buying out structures within the neighborhood,to prevent future losses. The 2009 City-wide Drainage Study identifies the Brookglen subdivision asan area with significant drainage/flooding problems, attributed to a mixture of inadequate sewerage and insufficient channel capacity within the B112-00-00 Channel. The combination of various improvements recommended within the City-wide Drainage Study are aimed at reducing the flood risk within the Brookglen area. Several of the recommended improvements within the various studies have been constructed, each providing incremental flood risk reduction within the Brookglen subdivision. In continuation of thephased approach to mitigating the flood risks within the Brooklen subdivision,a number of additional drainage improvements are proposed to further reduce the flood risks within the area.Proposed project include but are not limited to: two additional detention ponds on existing buyout lots; increased capacity within the local storm sewer system; and a 100-acre detention pond. ACTION REQUIRED BY DRAINAGE AND FLOODING COMMITTEE Receiveand analyze thereporttoprovide Staff with direction, as necessary. Approved for Drainage CommitteeAgenda Corby D. Alexander, City ManagerDate