Benson Watershed Regional Detention Pond

Budget: $11.6 million

Scope of work: Purchase land and construct, at a minimum, a new 90-acre-foot retention pond. 

Subdivisions, areas, or streets impacted: Area bounded by FM 646, Hill Avenue, Washington Street, Meadowlark Lane, and Weeks Avenue

Benson Bayou Regional Conveyance and Mitigation Pond aerial map

Benson Detention Pond timeline schedule

Project Status as of June 2021

GO Bond project; the engineer submitted a new drainage analysis study on February 24, 2021 with recommendations to fit within a $12 million budget; an analysis review meeting was held on April 5, 2021 with the City Engineer and consultant where comments were provided; the final analysis report was received on April 8, 2021 and has been reviewed. Staff recommends moving forward with detention basin 8 as outlined in the analysis; the consultant is preparing the proposal for additional services and a revised schedule. The notice to proceed will be issued for services to get to 30% design once approved.

Original Schedule

The original schedule, as of September 2019, shows design in progress from quarter 1 of 2020 through quarter 2 of 2021 for Benson Bayou Regional Conveyance & Mitigation Pond. Land acquisition is programmed from quarter 3 of 2020 through quarter 2 of 2021. Construction bidding is scheduled for quarter 3 of 2021 with construction following through quarter 4 of 2021. Construction time is an estimate as each bid is awarded based on cost and time submitted by the contractor.

Current Schedule

The current schedule, as of June 2021, for the Benson Bayou Regional Conveyance and Mitigation Pond project shows the preliminary design completed with options for the project in quarters 1 and 2 of 2020. The detention pond design was completed in quarters 3 and 4 in 2020. Final design is in progress from quarter 1 of 2021 through quarter 3 of 2021. Construction bidding is programmed for quarter 4 of 2021. Construction is programmed for quarter 1 of 2022 through quarter 4 of 2022. Construction time is an estimate as each bid is awarded based on cost and time submitted by the contractor.