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

This bond project includes Phase 3 design and construction to expand the South Belt Stormwater Detention Basin (HCFCD Unit A520-03-00). Stormwater detention basins reduce flooding risks and damages during heavy rain events by safely storing excess stormwater and slowly releasing it back to the bayou when the threat of flooding has passed. The basin provides stormwater storage needed for mitigation of expected increases in stormwater flows resulting from channel 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. This final phase of the South Belt Stormwater Detention Basin will excavate more than 1.1 million cubic yards of material from the basin and remove 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 Dagg project requires filling in a 50-foot-deep portion of the stormwater detention basin, the material excavated from the South Belt and FM 1959 sites will be used for this purpose, resulting in a cost savings.

To further extend 2018 bond funding, the Christia V. Adair 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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Location

This project is located on a 174-acre site on Mud Gully, near the intersection of Beamer Road and FM 1959 in the Clear Creek watershed of southeast Harris County.

Stage

Phase 3 of the stormwater detention basin excavation currently under construction. Construction started in April 2020.

Bond Listing

Bond Project C-05 is a “Local Only” bond project, which means there is no other funding partner at this time and total project costs would be paid with bond funding. Total estimated funds for construction of the Christia V. Adair Stormwater Detention Basin and Phase 3 of the South Belt Stormwater Detention Basin is $18.5 million.

Milestones

Phase 2

• This phase expanded the basin to include basin compartments south and west of the Phase 1 compartment.

• Construction began in November 2016 and was substantially complete in 2019.

• Harris County Commissioners Court awarded a $15.78 million construction contract to James Construction Group LLC for Phase 2 of the basin project.

• The project continued the partnership between Harris County Flood Control District and Galveston County.

Phase 1

• This phase included excavation of the basin compartment northeast of Beamer Ditch/Mud Gully.

• Construction began in late September 2014 and was complete in 2018.

• Harris County Commissioners Court awarded an approximately $3.46 million construction contract to low bidder Trans-Global Solutions Inc.

• The project was a partnership between the Harris County Flood Control District and Galveston County. Galveston County pledged up to $10 million of total basin construction costs.

• Construction costs for Phase 1 were shared equally by the Flood Control District and Galveston County.

Bond List

List of 2018 Bond Projects

The Harris County Flood Control District has a significant number of flood damage reduction projects occurring all over Harris County as part of its on-going Capital Improvement Program (CIP), Operations and Maintenance, and the 2018 Bond Program. Click the Project ID on the Map to learn about projects’ details. Some early-stage projects are not highlighted on the map. The map will be updated when projects advance or when more information becomes available.

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.

COMMUNITY ENGAGEMENT MEETING

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

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

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