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C-33 Aldine Westfield Stormwater Detention Basin

C-33 Aldine Westfield Stormwater Detention Basin
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Recent Actions

July 20, 2021 – Harris County Commissioners Court authorized a $140,000 agreement to provide engineering and related consulting services in support of this project.

June 29, 2021 – Harris County Commissioners Court awarded $11,420,726 for Phase 2 excavation and grading of this project.

June 29, 2021 – Harris County Commissioners Court authorized negotiations for materials engineering and testing services in support of this project.

June 8, 2021 – Harris County Commissioners Court authorized the advertisement for construction bidding on excavation and grading of the Aldine Westfield stormwater detention basin (Phase II).

February 26, 2021 – Harris County Commissioners Court authorized change of contract No. 2 for environmental services resulting in no changes to the contract amount in support of this project.

July 28, 2020 – Harris County Commissioners Court approved an additional 47 days and $32,479 for the Aldine-Westfield stormwater detention basin, Phase 1 in the Greens Bayou Watershed in Precinct 1. Harris County Commissioners Court approved updates to project details in the 2018 Bond Program List. Update changes funding to reflect engineers estimate and pending construction bid.

July 30, 2019– Harris County Commissioners Court authorized an agreement with an engineering firm for an additional $185,020 in engineering services in support of this project. A Community Engagement Meeting was held for this project.

March 26, 2019– Harris County Commissioners Court awarded a $6.85 million contract for construction of Phase I (the south cell) of this project.

January 29, 2019– Harris County Commissioners Court approved a $49,976 agreement with an engineering firm for materials engineering and testing services in support of this project.

December 18, 2018 – Harris County Commissioners Court authorized an $100,000 amendment to a previous $543,000 agreement with an engineering firm to provide final design of this project.

October 9, 2018 – Harris County Commissioners Court authorized negotiations with a consultant for materials engineering and testing services in support of this project.

December 19, 2017 – Harris County Commissioners Court approved a $543,000 agreement with an engineering firm for design, bidding and construction phase engineering services in connection with this project.

Project Description

Bond Project C-33 will construct a two-phase stormwater detention basin to reduce the risk of flooding in the mid-reach stretch of Greens Bayou by taking in excess stormwater during heavy rain events and then releasing it slowly back to the channel when the threat of flooding has passed. Phase 1 was constructed to hold approximately 667 acre-feet of stormwater (approximately 217 million gallons), and Phase II is expected to hold another 600 acre-feet (190 million gallons) of stormwater once complete. Together, the two phases are anticipated to hold 1,250 acre-feet, or 407.3 million gallons, of excess stormwater that might otherwise flood homes and businesses.

South and north compartments are being constructed in two phases – the south compartment first – to allow for necessary environmental permitting. Eventually, the two basin compartments will be connected by two 5'x4' reinforced concrete boxes and will outfall into Greens Bayou. Prior to construction of Phase I (completed in March 2021), portions of the stormwater detention basin partially excavated via an earlier excavation and removal agreement.

Greens Bayou Mid-Reach Program
This project is part of the Greens Mid-Reach Program. As originally envisioned, the Greens Mid-Reach Program is a several-hundred-million-dollar effort focused on the area from Veterans Memorial Drive downstream to JFK Boulevard. The Flood Control District began implementing this vision in the 2000s to bring much-needed flood risk reduction to residents along Greens Bayou.

In total, the Greens Mid-Reach Program proposes 11 miles of channel conveyance improvements and 10,500 acre-feet of stormwater storage through five stormwater detention basins to mitigate the increased flow of water and prevent any regional impacts. As of July 2022, 8,200 acre-feet of the required stormwater detention has already been completed or is currently under construction, including Bond Project C-33, the Aldine Westfield Stormwater Detention Basin, and Bond Project C-34, the Lauder Stormwater Detention Basin. The Glen Forest Stormwater Detention Basin and the Kuykendahl Stormwater Detention Basin are fully constructed and the fifth Hardy Stormwater Detention Basin is still in early feasibility.

Location

This project is located south of Greens Road and north of Beltway 8, just off of Aldine Westfield Road.

Stage

Phase I of this project is COMPLETE. Phase II of this project is in the DESIGN stage.

Bond Project Listing

Total allocation for all future stages and phases of Bond Project C-33 on the Bond Project List is currently $15.1 million. Both phases have received funding through the Flood Control District's Capital Improvements Program and through the 2018 Bond Program. Phase I is fully funded. Total estimated cost for Phase II is $10.9 million and to fund the project to completion, a grant application for Community Development Block Grant Mitigation (CDBG-MIT) funding was applied for and submitted to The Texas General Land Office in October of 2020 in the amount of about $10 million. 

Project Photos

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C-33: Construction and tree planting in Aldine Westfield Stormwater Detention Basin

Public Information Session

A virtual public session to learn more about this project was held on:

Date: Thursday, October 1, 2020
Time: 6:30 p.m. to 7:30 p.m.

You can submit a comment and see the meeting presentation and video by clicking the links below.

Community Engagement

A Community Engagement meeting for this project was held June 18, 2019.