New Woodridge Village Detention Basin Already 2nd Largest
As of January 30, 2023, Sprint Sand and Clay had excavated 80,360 Cubic Yards of dirt from a sixth Woodridge Village stormwater detention basin under an Excavation and Removal Contract with Harris County Flood Control District. Even though the new basin is not yet complete, it is already the second largest on the site.
Sprint’s $1,000 contract gives it the right to excavate up to 500,000 cubic yards and sell the dirt at market rates to make its money back. The purpose: to get a head start on construction of another basin that could eventually double Woodridge Village stormwater detention capacity so that it will exceed Atlas-14 requirements and create a safety margin to accommodate future development.
Reason for Project
Perry Homes sold the failed development to Harris County Flood Control District in 2021 after it contributed to the flooding of hundreds of homes in Elm Grove and North Kingwood Forest twice in 2019.
Excavation began in early 2022. By the end of that year, Sprint had removed 73,745 cubic yards of soil. January’s total means Sprint is about one-sixth of the way toward its goal.
The basin already holds a considerable amount of runoff as the pictures below show. The pictures were taken on 1/24/23 after a five-year rain (3.6 inches in two hours). That’s about half the volume that fell on May 7, 2019 when Woodridge Village first flooded Elm Grove and North Kingwood Forest. But at that time, only the long narrow detention basin on the lower right had been completed.
New Excavation Already Second Largest on Site
80,360 cubic yards equals 49.8 acre feet. Woodridge Village’s five original basins had the following capacity:
- N1 = 13.2 acre feet
- N2 = 154.7 acre feet
- N3 = 42 acre feet
- S1 = 18.6 acre feet
- S2 = 42.5 acre feet
That means the new basin already ranks as the second largest on the Woodridge Village site.
More capacity will mean the site can safely handle much larger rainfalls.
Current detention pond capacity equals 271 acre feet. When complete, the new basin will add 309 acre feet, more than doubling the site’s stormwater detention capacity.
Funding and Next Steps
This is all part of a larger plan outlined in the preliminary engineering review for Taylor Gully that HCFCD shared with the public in December. The plan also calls for deepening a portion of Taylor Gully and replacing the twin-culvert bridge at Rustic Elms with an open-span bridge.
U.S. Representative Dan Crenshaw has already secured $1.6 million for Taylor Gully Improvements. The City of Houston also has secured a $10.1 million loan from the Texas Water Development Board to improve drainage in the Taylor Gully watershed.
Next up: final design of the improvements before construction can begin.
Posted by Bob Rehak on 1/31/23
1981 Days since Hurricane Harvey and 1230 since TS Imelda
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