Sprint Sand and Clay Archives

Woodridge Village Plans Still on Hold, But that Could Change Soon

Back in November 2023, Harris County Flood Control District (HCFCD) terminated its excavation and removal contract with Sprint Sand and Clay. The 2021 contract called for Sprint to remove up to 500,000 cubic yards of material from Woodridge Village. Had the full amount been excavated, it would have more than doubled the stormwater detention basin capacity on the site.

*Extent of excavation at end of Woodridge Village E&R Contract with Sprint. Photo: 12/28/21.*

Only About A Third of Max Volume Excavated

But at the time HCFCD terminated the contract, Sprint had excavated only 160,748 cubic yards, an amount equal to 100 acre feet, and only about a third of the maximum allowed under the contract.

When HCFCD purchased the Woodridge Village property from Perry Homes, the site had only 70% of Atlas 14 requirements (the new standard for a 100-year storm). The lack of detention capacity contributed to the flooding of hundreds of homes in Kingwood along Taylor Gully twice in 2019.

In the end, the 160,748 cubic yards meant that the site had 96% of Atlas 14 requirements. But significantly, the additional capacity is still just a hole in the ground. It has not yet been tied into other Woodridge detention basins or drainage channels.

Termination Caused by HUD Rule

The rationale for termination of the contract had nothing to do with Sprint’s performance. Rather, it had to do with an unintended consequence of a U.S. Department of Housing and Urban Development (HUD) rule.

HCFCD hoped to pay for both Taylor Gully and Woodridge Village with HUD funds. But a HUD rule states that HUD funds cannot pay for work already completed on a project when a grant application is submitted.

As a result, when HCFCD applies for a HUD grant, it must:

Zero out work completed to date and stop work.
Estimate the cost of remaining work.
Wait for an award determination.

The rule also affected several other E&R projects in Harris County, such as one on TC Jester next to Cypress Creek.

It’s especially painful in this case because HCFCD listed the Woodridge Village stormwater detention basin as an alternate project for HUD funding. That means, it would only be considered if a fatal flaw knocked one of HCFCD’s primary recommendations out of the running.

HCFCD Exploring Alternative

Amy Crouser, an HCFCD spokesperson said, “Woodridge must be treated as if it were funded by HUD and GLO, which means that we cannot perform any choice-limiting actions on the site, such as the E&R contract. It will be some time before we know if any alternate projects will move to the ‘funded list.’”

Crouser then added, “However, we are investigating whether we can split the Woodridge Village Stormwater Detention Basin into two projects. That may offer some flexibility in getting the E&R contract reinstated. We should have an answer in the next few weeks.”

HCFCD has not yet publicly released the final engineering studies on Woodridge or Taylor Gully.

With interest rates falling, housing starts may pick up and increase demand for fill dirt. That could eliminate the only real drawback of an E&R contract; they can be time consuming if demand for dirt is low. Otherwise, they represent exceptional value for taxpayers. Sprint made only $1,000 from the contract but made its money back by selling the dirt at market rates.

Status of Excavation At Year End

Here’s where things stood at the end of 2023:

	Acre Feet of Stormwater Detention	% of Atlas-14 Requirement	% of Ultimate
Site Had When Purchased from Perry Homes	271	70%	47%
Had as of 12/31/23	371	96%	63.9%
Atlas 14 Requires	385	100%	66%
Had Sprint Excavated All 500,000 CY	580	150%	100%

As of 12/31/23, nothing but the cool winter wind could be heard howling through Woodridge Village.

Stay tuned for more news as it develops.

Posted by Bob Rehak on 1/3/2023

2318 Days since Hurricane Harvey

Woodridge Village Excavation Activity Almost Doubles

Compared to July, Woodridge Village excavation activity almost doubled in August.

As of close of business on September 6, 2023, Harris County Flood Control District (HCFCD) contractor Sprint Sand and Clay has excavated 146,104 cubic yards of material to expand the stormwater detention basin capacity on Woodridge Village.

At the end of July, Sprint had excavated 135, 751 cubic yards. That means the company excavated another 10, 353 cubic yards in August, or 6.4 acre feet.

And that brought the total excavated to date up to 361.6 acre feet, or 94% of the Atlas 14 requirement.

Stepping Up Stormwater Detention Capacity

When Perry Homes sold the site to HCFCD and City of Houston, the site had five detention basins totaling 271 acre feet. The new basin has the potential to more than double that volume.

Think of the expansion of Woodridge Village stormwater-detention-basin capacity in four stages:

The starting point, i.e., what the site had when purchased from Perry Homes.
An additional amount that Sprint has excavated to date.
The Atlas-14 requirement.
The contract max (500,000 cubic yards).

Here’s how the various stages look in a table.

	Acre Feet of Stormwater Detention	% of Atlas-14 Requirement	% of Ultimate
Site Had When Purchased from Perry Homes	271	70%	47%
Has as of 9/6/23	361.6	94%	62.3%
Atlas 14 Requires	385	100%	66%
If Sprint Excavates All 500K Cubic Feet	580	150%	100%

As of 9/6/23.

I based all calculations on original construction plans, HCFCD monthly reports, Atlas-14 Requirements and Sprint’s contract.

Photos Taken 9/7/2023

Here’s how Woodridge Village excavation activity looks on the ground.

*The site was busier today last month. Trucks constantly shuttled in and out.*

*Looking NE across the new basin and the main part of Woodridge Village*

*Looking SW toward site entrance, Kingwood Park HS and Woodland Hills Drive*

*Main thrust of work during August appears to be toward the east.*

*An excavator loaded several trucks while I watched.*

Outline of Excavation

Harris County Commissioners Court approved the contract with Sprint Sand and Clay on July 20, 2021. It obligates Sprint to remove at least 5,000 cubic yards per month. Excavation started on January 27, 2022.

Woodridge Village Excavation and Removal — *Sprint can take material wherever it wants, but must excavate from within the red boundary line.*

Sprint will make only $1,000 from its Woodridge Village excavation contract with HCFCD, but will make its profit by selling the dirt at market rates. An engineer familiar with HCFCD operations estimates that if HCFCD had to pay market rates to have that 146,000 cubic yards moved, it would have cost taxpayers between $1.46 million and $2.9 million. He based those numbers on recent bids.

So, the Sprint contract is a good deal for taxpayers, but it carries some uncertainty with it.

If the demand for dirt dries up, excavation could slow or stop.

Next Steps

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 awarded the engineering project for all that to Halff, based on the company’s qualifications. HCFCD is currently negotiating the scope of the project with Halff.

At the current rate of excavation, Sprint could reach Atlas 14 requirements by the end of the year. But the contractor is still less than a third of the way through its contract maximum of 500,000 cubic yards.

Construction of Taylor Gully conveyance improvements cannot move forward until the appropriate stormwater mitigation on Woodridge Village is in place first. Only one thing is certain at this point. That could still be awhile.

But there is good news. In the meantime, the extra Woodridge Village detention basin capacity will go a long way toward reducing flood risk for people downstream.

Posted by Bob Rehak on 9/7/23

2200 Days since Hurricane Harvey

Woodridge Village Excavation Surpasses 100,000 Cubic Yards

In the four weeks since my last update, Harris County Flood Control District’s (HCFCD) contractor has excavated another 11,000 cubic yards of dirt from Woodridge Village. That means Sprint Sand and Clay has removed a total of 104,000 cubic yards since it started work under its Excavation and Removal Contract a little more than a year ago.

Sprint is removing the dirt from what will become a sixth stormwater detention basin on the former Perry Homes site. The lack of adequate detention capacity on the site contributed to flooding hundreds of homes in Kingwood twice back in 2019, before HCFCD purchased the property.

New Excavation Already Second Largest on Site

Already, at 62 acre feet, the new basin ranks as the second largest stormwater detention basin on the 268-acre site. Woodridge Village’s five original basins had the following capacities:

N1 = 13.2 acre feet
N2 = 154.7 acre feet
N3 = 42 acre feet
S1 = 18.6 acre feet
S2 = 42.5 acre feet

The new detention basin could more than double capacity on the site. Ultimately, it will exceed Atlas 14 requirements.

Here’s where the original five are located.

*Locations and sizes of first five stormwater detention basins shown in blue.*

The new basin will go between N2 and S1.

Progress by the Numbers

The 11,000 cubic yards excavated in the last 28 days averages 2,750 cubic yards per week. That’s an increase of 220 cubic yards per week compared to the previous month. It’s also 1,000 cubic yards per week more than the weekly average since the start of the contract.

The current monthly rate more than doubles the minimum required under Sprint’s contract.

The excavation of 100,000 cubic yards marks yet another milestone. Sprint has now removed more than 20% of the 500,000 cubic yards allowed under the contract.

February vs. March Photos

To get a feeling for just how much 11,000 cubic yards is, compare these photos taken at the ends of February and March.

Extent of excavation for new Woodridge Village Detention Basin as of 3/5/23 — *End of February*

*End of March*: *excavation stretches much farther into the distance.*

A Head Start on Construction

In December 2022, HCFCD revealed the results of its analysis of alternatives to reduce flooding adjacent to Woodridge and Taylor Gully. HCFCD is now working on finalizing those plans.

Excavation and removal contracts give HCFCD a head start on construction while engineers finish plans. This compresses the timetable.

The contract also saves taxpayers money. It gives Sprint the right to remove up to 500,000 cubic yards for a grand total of only $1000. Sprint makes its money by selling the dirt at market rates to home- and road builders. The only restriction: the dirt can’t be placed in the floodplain.

Posted by Bob Rehak on 4/4/2023

2044 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.

July Update: Woodridge Village Excavation Rate Slows Slightly

The pace of excavation and removal of up to 500,000 cubic yards of soil from Woodridge Village has slowed slightly in recent months. That may be due to rising interest rates, which have slowed housing starts. Contractors use excavated dirt to elevate homesites in new developments. But the Census Bureau says housing starts in June 2022 fell 6.3% below the June 2021 rate.

Woodridge Village Background

Woodridge Village was the failed 670-acre Perry Homes development that twice contributed to flooding hundreds of homes in Kingwood’s Elm Grove and North Kingwood Forest Villages in 2019. Harris County and the City of Houston bought the property in 2021 to help reduce flood risk. They plan to do this by building another detention basin.

Perry left the site about 40% short of the floodwater detention capacity needed to meet current Atlas-14 requirements. Since then, Harris County Flood Control District (HCFCD) entered into an “Excavation and Removal” contract (E&R) with Sprint Sand and Clay to begin removing additional soil. The goal: to get a head start on building an additional detention basin that would meet OR exceed Atlas-14 requirements.

Harris County Commissioners Court approved the contract with Sprint Sand and Clay on July 20, 2021. It obligates Sprint to remove at least 5000 cubic yards per month. Excavation started on January 27, 2022.

During July, Sprint removed approximately 6,400 cubic yards of dirt.
HCFCD spokesperson Amy Stone

To date, Sprint has removed 48,860 yards of material. That’s 18,860 cubic yards more than the contract minimum for six months. And 1,400 cubic yards more than the minimum for July. So you can see that the rate of removal is dipping slightly.

At almost 50,000 cubic yards for 6 months (or 100,000 yards per year), it would take 5 years for Sprint to reach the maximum. However, by contract, Sprint has 36 months. If Sprint continues to average 6,000 cubic yards per month for another 30 months, it would remove a total of 229,000 cubic yards before the end of the contract term ([30×6000]+ 49,000).

So at some point, Sprint will have to sprint to catch up if they want to remove all 500,00 cubic yards.

Recent Photos Show Growth of Basin

Here’s what the site looked like before and after July’s excavation activity.

End of June

Woodridge Village E&R as of 6/30/22 — *Excavation at end of June 2022. Note where the upper right boundary of the pit stops relative to the storm-sewer pipes at far right.*

End of July

*Looking south over eastern edge of pond. Newly excavated area is at left (darker dirt).*

About E&R Contracts

E&R contracts provide a head start on construction of detention basins before completion of their final design.

Sprint has agreed to remove up to half a million cubic yards of soil for only $1000. But it makes its money back by selling the soil for a profit on the open market. This provides virtually free excavation to taxpayers and virtually free raw material to Sprint. HCFCD has spent only $230 on the project so far. But the tradeoffs are speed and certainty.

The property above forms the headwaters of Taylor Gully. When HCFCD finishes its Taylor Gully study, things may change.

Final Needs Contingent on Outcome of Taylor Gully Study

HCFCD hired Idcus, Inc. in mid-2021 to develop up to five conceptual alternatives for modifying Taylor Gully. Scenarios may include:

Expanding Detention On Woodridge Village so that no channel improvements are necessary.
Determining amount of detention and channel improvements necessary to ensure no adverse impact all the way to Lake Houston.
Finding the optimum balance between maximum flood protection and minimum construction costs.

Deliverables include:

Channel and basin layouts
Estimates of benefits for various levels of storms (100-year, etc.)
Right-of-way requirements
Cost estimates for right-of-way acquisition, engineering and construction management.
Performance metrics, i.e., estimated acreage of land inundation, number of structures in floodplain, number of structures flooded and miles of inundated roadway.
A scoring matrix to rank alternatives.

*The red dots show location of current excavation relative to entire scope of Idcus project, from yellow polygon on left to end of red line in forest on right.*

Idcus should be done with the study soon. In the meantime, residents will have to settle for the virtually free head start we get.

Posted by Bob Rehak on 7/31/2022

1797 Days since Hurricane Harvey

1182 Days since May 7, 2019

1049 Days since TS Imelda

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