1-10-22 - Laserfiche WebLink

Browse Search

REQUEST FOR CITY COUNCIL AGENDA ITEM Appropriation Agenda Date Requested: January 10, 2022 Source of Funds:N/A Requested By:Ray Mayo, Director Department:Public Works Account Number:N/A Amount Budgeted:N/A ReportResolutionOrdinance Amount Requested:N/A Budgeted Item:YesNo Exhibits: Area Map; Opinion of Cost; Inter-local Agreement; GLO Award Notice SUMMARY & RECOMMENDATION The Brookglen Subdivision is comprised of approximately 464 residential structures. Dating back to June 1981, during each significant rain event, there have been more than 100 flood-related FEMA insurance claims within the subdivision. According to the 2009 Citywide Drainage Study, local storm water collection system has a three-year level of service, which contributes to local flood risks within the project area. The 2009 study also recommended several drainage improvement projects, intended to reduce flood risks within the Brookglen Subdivision. The Brookglen Subdivision Drainage Improvements Project is the highest prioritized drainage project, as ranked by the Drainage Committee at the August 13, 2018 Drainage Committee Meeting. After much coordination between City Staff and Harris County Staff, a combination of projects have been identified to mitigate flooding within the subdivision. Utilizing land acquired through flood-related buyouts, Harris County Flood Control District (HCFCD) intends to construct detention basins within the subdivision. Taking advantage of the additional storage capacity provided by the detention ponds, the City of La Porte plans to increase the capacity of the local storm sewer system, by increasing storm sewer pipe sizes throughout the southern half of the subdivision. Ancillary infrastructure improvements to be constructed as part of this project includes: replacing existing asbestos-concrete water lines with new PVC water line; and the replacement of approximately 46,700 square yards of 6” concrete paving throughout the project area. As separate projects, two additional detention ponds, south of Fairmont Parkway, are also planned to be constructed to complement the aforementioned projects. The City of La Porte has submitted a Partnership Project Application for the Brookglen Subdivision Drainage Improvements Project to Harris County for funding consideration. The estimated total project cost is $11,940,009.88, including engineering, material testing, and construction. Funding sources for this project include the City of La Porte, Harris County, and the Texas General Land Office, with each expecting to contribute