Harris County Flood Control District’s (HCFCD) Woodridge Village Excavation and Removal contract for 500,000 cubic yards with Sprint Sand & Clay is almost one-quarter complete. Sprint excavated approximately another 9,000 cubic yards in May (5.8 acre feet). That’s almost double the monthly minimum and brings the total up to 123,882 cubic yards.
Stormwater from Woodridge Village flooded hundreds of homes twice in 2019. The excavation will provide additional stormwater detention capacity to reduce flood risk downstream in the future.
May/June Photos Show Progress
The first two photos below were taken at the beginning of May and June 2023.
Up until now, Sprint has been excavating from west to east. Now, they seem to be excavating primarily from south to north.
HCFCD spokesperson Amy Crouser said that, “Essentially, the contractor is free to excavate where they want within the provided footprint.”
Where Does Woodridge Village Excavation Go From Here?
Sprint has excavated 76.8 acre feet so far. That brings the current detention capacity (old plus new) to 348 acre feet. That’s 90% of what Woodridge Village needs to meet Atlas-14 requirements.
Here’s how all that looks in a table.
|Acre Feet of Stormwater Detention||% of Ultimate|
|Site Had When Purchased from Perry Homes||271||47%|
|Has as of 6/4/23||348||60%|
|Atlas 14 Requires||385||66%|
|If Sprint Excavates All 500K Cubic Feet||580||100%|
Sprint’s contract calls for excavating UP TO 500,000 cubic yards. Any excavation beyond Atlas-14 needs would create a safety hedge against future needs should they increase.
Sprint will make only $1,000 from its Woodridge Village excavation contract, but will make its profit by selling the dirt at market rates. It’s a good deal for taxpayers, but carries some uncertainty with it.
A lot of flexibility exists for both parties in an E&R contract. If the demand for dirt dries up and excavation slows, HCFCD and Sprint could modify the E&R contract to complete a smaller detention basin sooner. But I assume it would still meet Atlas 14 requirements at a minimum.
But simply excavating the dirt isn’t the end of the job. Harris County still needs to slope the sides, plant grass, and tie the new basin into the site’s existing stormwater-detention-basin network.
HCFCD and Harris County Purchasing are currently evaluating consultants’ bids to draw up the final construction plans.
Posted by Bob Rehak on 6/5/2023
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