C-05 South Belt Stormwater Detention Basin A520-03-00

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Note: Bond ID F-03 has been consolidated with Bond ID C-05.

Recent Actions

January 10, 2023 – Harris County Commissioners Court approved a change to the Phase 3 construction contract adding 15 calendar days with no change to the contract amount.

October 25, 2022 – Harris County Commissioners Court authorized a change in the construction contract, adding 70 calendar days, with no change to the contract amount, in support of Phase 3 of this project.

September 27, 2022 - Harris County Commissioners Court approved a change in the construction contract resulting in an addition of 26 calendar days and $52,208 to the contract amount in support of Phase 3 of this project.

August 23, 2022 – Harris County Commissioners Court approved a change in contract adding 54 calendar days and $218,580 to the contract amount in support of this project.

April 26, 2022- Harris County Commissioners Court approved a bill of sale and partial release allowing for the removal of abandoned pipelines near this project.

December 15, 2020 - Harris County Commissioners Court authorized an additional $30,795 to the contract amount for construction of this project.

September 29, 2020 – Harris County Commissioners Court approved an additional amount of $12,000 for design, bidding, and construction phase engineering services in support of this project.

August 25, 2020 – Harris County Commissioners Court authorized a change in contract with no additional funds for construction services in support of this project.

May 19, 2020 – Harris County Commissioners Court approved updates to project details in the 2018 Bond Program List. Update changes project title to include Unit ID; project funding also updated based on engineer's estimate and consolidation with Bond ID F-03; and project type changed because no funding partner has been identified.

May 2020 – Construction began.

April 28, 2020 – Harris County Commissioners Court authorized negotiations with an engineering firm for materials engineering and testing services in support of this project.

January 28, 2020 - Harris County Commissioners Court awarded a $16.96 million contract for construction of the South Belt and Christia V. Adair Stormwater Detention Basins.

November 12, 2019 – Harris County Commissioners Court authorized negotiations with various political jurisdictions for agreements in support of collaborative efforts to implement the Clear Creek Federal Flood Risk Management Project and Clear Creek watershed bond projects.

December 4, 2018 – Harris County Commissioners Court approved a $188,180 agreement with an engineering firm for final design of this project.

Project Description

Phase 3, the final phase for the design and construction of the bond project to expand the South Belt Stormwater Detention Basin (HCFCD Unit A520-03-00), was substantially complete in fall 2022. Stormwater detention basins reduce flooding risks and damages during heavy rain events by safely storing excess stormwater and slowly releasing it back to the creek when the threat of flooding has passed. The basin provides stormwater storage needed for mitigation of expected increases in stormwater flows resulting from channel conveyance improvements to Mud Gully (HCFCD Unit A120-00-00, also known as Beamer Ditch), Turkey Creek (HCFCD Unit 119-00-00), and other projects. The basin is designed to hold up to 1,550 acre-feet, or 505 million gallons, of stormwater.

In a cost-share partnership with Galveston County, Phase 1 of the South Belt Stormwater Detention Basin was completed in 2018, followed by Phase 2 completion in 2019.

The final phase of the South Belt Stormwater Detention Basin excavated more than 1.1 million cubic yards of material from the basin and removed 50,000 cubic yards from a nearby FM 1959 site where it had been mistakenly placed in the floodplain of Clear Creek in 2018. The Flood Control District bought the FM 1959 site in early 2020 so that the inappropriate fill could be removed, and the site could be investigated for additional stormwater storage benefits.

Since the Reverend William A. Lawson Stormwater Detention Basin project required filling in a 50-foot-deep portion of the stormwater detention basin, the material excavated from the South Belt and FM 1959 sites were used for this purpose, resulting in a cost savings.

To further extend 2018 bond funding, the Reverend William A. Lawson Stormwater Detention Basin project was paired with the third phase of the South Belt Stormwater Detention Basin project for construction. These two stormwater detention basins complement, but are separate from the Clear Creek Federal Flood Risk Management Project.

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Bond List

List of 2018 Bond Projects

South Belt Stormwater Detention Basin Project Area Map

Project Location Map - A520-03-00-E003 Alternative

Project Lifecycle

Every flood damage reduction project is unique. Yet each project begins and ends, with common and predictable milestones along the way. Whether a project moves forward – and how quickly – depends on many factors, including the availability of funding at each milestone, shifting community priorities for flood damage reduction, and other changing circumstances (such as the price of trees or concrete) from year to year.

Virtual Community Engagement Meeting

A Community Engagement meeting for this project was held on April 15, 2019.

Meeting Presentation Meeting Summary Virtual Meeting Video