The stormwater retention project worked well during Nicholas


While one Friendswood flood control project appears to be ending in the next few months, another is expected to start soon after.

On the site of the former Imperial Estates subdivision where Mary’s and Clear creeks meet, some 33 acres are being excavated to retain stormwater that overflows from the riverbanks during floods such as Hurricane Harvey of 2017. .

“The project is an in-line holding basin, offering over 900 acre-feet of holding capacity,” said Friendswood spokesperson Glenda Faulkner.

“The project is expected to help reduce the impact of flooding by up to (three inches) during a 100-year storm”

Expected completion early 2022

While the project is still not complete, the detention already created performed well during Tropical Storm Nicholas on September 14.

“The project worked as expected during the hurricane,” Faulkner said. “There have been no reports of flooding in the region in general. “

The Imperial Estates project is a joint effort between Friendswood and the Galveston County Consolidated Drainage District. It was originally budgeted at $ 13.8 million, but it looks way below that level.

“The project is expected to be under budget by around $ 12 million,” Faulkner said. noted. “Of that, the city contributed $ 5.5 million while the (drainage district) covered the rest. “

According to Faulkner, this project is underway but is expected to be completed by the end of the year or early 2022.

Forest Bend project close to the tender phase

In the Forest Bend subdivision, a project that would create retention ponds in a homeowners association park is in the engineering phase.

“Engineering is 95% complete,” Faulkner said. “Following an (ongoing) environmental review, the city will be able to move forward with the tender phase of the project. “

If all goes well, the project is expected to go to tender shortly, with excavators moving dirt shortly thereafter, the spokesperson said.

“Assuming that the environmental review is completed soon, you can expect the project to kick off in the first quarter of 2022,” she said.

When completed, the project will significantly increase stormwater retention in the area in a fairly short period of time, as the project is expected to take less than a year from start to finish.

“The project is expected to provide 53 acre-feet of offline detention across its ponds,” Faulkner said. “Ponds should be up to 10 to 12 feet deep.”

John DeLapp is a freelance writer. He can be contacted at

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