C-34 Lauder Stormwater Detention Basin

C-34 Lauder Stormwater Detention Basin

Last Modified: 11/02/2020 05:05 PM

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Recent Actions

May 19, 2020 – Harris County Commissioners Court approved updates to project details in the 2018 Bond Program List. Update changes funding to reflect amount secured through NRCS Pilot Program. Additionally, a $176,564 agreement was authorized for materials engineering and testing services in support of this project.

April 28, 2020 – Harris County Commissioners Court approved a $15,744,721 agreement with an engineering firm for construction in support of Phase 1 of this project.

April 7, 2020 – Harris County Commissioners Court authorized negotiations with an engineering firm for materials engineering and testing services for Phase 1 of this project.

March 10, 2020 - Harris County Commissioners Court approved an agreement between Harris County Community Services and the Flood Control District authorizing the use of 2017 Community Development Block Grant Disaster Recovery Program funds in support of this project.

October 29, 2019 – Harris County Commissioners Court approved an agreement for an amount not to exceed $1,395,000 with an engineering firm for preliminary design and bidding phase engineering services for construction on Phase 2 of this project.

July 30, 2019 – Harris County Commissioners Court authorized the acquisition of a tract of land in the Castlewood Subdivision in support of this project.

June 25, 2019 – Harris County Commissioners Court authorized negotiations with an engineering firm for design, bidding and construction stage engineering services in connection with Phase 2 of this project.

May 14, 2019 – Harris County Commissioners Court authorized the purchase of wetlands mitigation credits from the Greens Bayou Wetlands Mitigation Bank in support of Phase 1 of this project.

January 8, 2018 – Harris County Commissioners Court authorized an additional $130,000 in engineering services for hydrologic and hydraulic analysis and design, bidding and construction phase engineering services in support of this project.

PROJECT DESCRIPTION

When complete, the Lauder Stormwater Detention Basin (HCFCD Unit P500-06-00) is expected to hold at least 1,200 acre-feet, or more than 391 million gallons of excess stormwater that otherwise might flood homes and businesses. Stormwater detention basins reduce flooding risks during heavy rain events by safely storing excess stormwater and slowly releasing it back to the bayou when the threat of flooding has passed. This project will reduce risks in more common 10 percent (10-year) floods, but would be overwhelmed in a much larger storm.

Stage

The Lauder stormwater detention basin will be constructed in two phases:

• Phase 1 involves excavation of stormwater detention on the original Lauder site, a 91 acre property bordered by Greens Bayou on the north, Lauder Road on the south, the neighborhood property line west of Green Teal Lane on the east, and Greens Bayou tributary P138-01-00 on the west. Intermediate excavation began in 2018 and was complete in 2019 while waited for the necessary environmental permitting for the full excavation of Phase 1. Portions of the Phase 1 site had also been partially excavated in previous excavation and removal agreements.

• Phase 2 involves the future excavation of property on the former Castlewood subdivision, Sections 1 and 2.

Design

Lauder Stormwater Detention basin will be a wet-bottom basin, with a permanent pool, island, and features designed to improve stormwater quality. The basin design preserves an approximately 200-foot-wide wooded area along Greens Bayou, as well as a tree buffer along the east side of the site. A remnant channel, or “oxbow,” in Phase 2 will be recreated at the bottom of the basin. Additional trees will be planted post-construction.

While the basin’s primary function is to reduce flooding risks, the site will be available for appropriate recreational development by other entities. 


History

Sections of the Castlewood subdivision were built in the early 1960s in an area that is not only within the Greens Bayou floodplain, but also in a former floodway of Greens Bayou before the bayou was rerouted and straightened in the early 20th Century. 

Development occurred many years before the advent of Harris County’s first floodplain maps and associated development regulations in the 1980s. Since the late 1970s, there have been more than a dozen recorded flood events in the area. 

The original Lauder basin site was purchased by the Flood Control District as undeveloped land in 2000. This purchase was in connection with the Greens Bayou Mid-Reach Flood Damage Reduction Plan, which includes construction of four stormwater detention basins, improvements to 11 miles of channel between John F. Kennedy Boulevard and Veterans Memorial Drive, and modifications to 33 bridges. In addition to the Lauder stormwater detention basin, the other identified basins are Aldine-Westfield, Kuykendahl and Glen Forest.

Castlewood (Sections 1 & 2) Community - Property Acquisition

Plans for the Lauder basin originally included only the original 90-acre site on the east side. However, to address persistent flooding, the Flood Control District conducted several voluntary home buyouts in the Castlewood (Sections 1 & 2) subdivision to the west, and included this area in the basin expansion effort. Eventually, the Flood Control District proceeded with a mandatory property acquisition plan to purchase the remaining properties in Castlewood Sections 1 & 2, which is located north of Greens Bayou tributary P138-00-00. This process is almost complete.

Bond Listing

The Lauder Stormwater Detention Basin project is being funded both through the Flood Control District's Capital Improvements Program (for design) and through the 2018 Bond Program (for construction). Total allocation for all future stages and phases of Bond Project C-34 on the Bond Project List is currently $26 million, of which approximately $25 million would be partnership funding, if granted, and $1.6 million would be local costs.

Progress Greens is the name given to a suite of flood damage reduction projects currently active in the Greens Bayou watershed of Harris County. The Harris County Flood Control District is taking the lead in some of those projects, with grant assistance from the Federal Emergency Management Agency (FEMA). In others, the U.S. Army Corps of Engineers will design and construct the project, with partnership assistance from the Flood Control District.

All projects under the Progress Greens umbrella will function together to reduce flooding risks and damages for residents and businesses within the 213 square miles of the Greens Bayou watershed.

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.


Virtual Community Engagement Meeting

A virtual public meeting was held about this project.

Date: Thursday, September 17, 2020
Time: 6:30 p.m. to 7:30 p.m.

Summary Presentation Video

Community Engagement Meeting

A Community Engagement Meeting for this project was held at: BakerRipley East Aldine Campus, 3000 Aldine Mail Route Road, Suite A, Houston Texas 77039

Date: June 26, 2019

Summary Presentation Video