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Posted on: June 21, 2022

City of Manvel and Drainage Districts Break Ground on Manvel Drainage Pond

Photo of all participants shoveling dirt at the groundbreaking.

The City of Manvel alongside Brazoria County Conservation and Reclamation District #3 (C&R3), Brazoria Drainage District #4 (BDD4), and Brazoria Drainage District #5 (BDD5) broke ground Tuesday, June 21, on the much-anticipated Manvel Drainage Pond. This is the first joint construction project between the four entities– with hopefully many more to come!

Severe weather events are a yearly occurrence in the Houston-Galveston area, with Hurricane Harvey being the most destructive event that has taken place in recent memory. 

During Hurricane Harvey, and for many days after, State Highway 6 (SH6), a main thoroughfare through the City of Manvel and a designated Hurricane Evacuation route, had been rendered completely impassable, leaving many Manvel residents with few other options to evacuate to safety. While the City of Manvel suffered no loss of life and no serious destruction of property, the severity of the hurricane brought an important and pressing issue to light.

In 2020, with concerns for similar events for the future in mind, the City of Manvel began seeking solutions to potentially hazardous flooding events. Identifying the problem was not enough, the City needed actionable resolutions, and the first step to that was in acquiring the land necessary to sustain a long-term, large-scale project like the one Manvel was looking to undertake.

The City of Manvel identified and purchased 117 acres of land near the intersection of Masters Road and Jordan Road as a viable solution to its ongoing flood concerns. This property is located in Flood Zone AO3, which can be inundated with three feet of water during an extreme event. Additionally, the southern boundary of the site is adjacent to the Gulf Coast Water Authority Canal which acts as a levee to back up water in the C12 waterway. This 117 acres is a considerable acquisition of land for the project, with other nearby ponds in Twin Lakes and Bluewater Lakes coming in at approximately 24 and 15 acres of land respectively. 

Once viable land had been purchased, the City then selected Lentz Engineering, LC to investigate, model, and design a drainage pond for the area that could assist with both detention and floodplain mitigation. 

In late 2021, Lentz completed the H&H Modeling and Construction Plans, and soon after in January 2022, the Brazoria County Conservation and Reclamation District #3 (C&R3) and the City of Manvel approved the construction plans, gaining additional blessings from BDD4 and BDD5 on the project and dubbing it the “Manvel Drainage Pond.”

What is a Drainage Pond?

A drainage pond, or "detention pond," is a constructed depression that receives and stores stormwater runoff from a specific drainage area. The Manvel Drainage Pond will provide many benefits to the City, including the reduction of ponding water on SH6 during extreme flooding events.

“This is evidence of just some of the amazing things to expect from the City and our Drainage Districts when we all collaborate,” said Dan Johnson, Assistant City Manager for the City of Manvel. “When we work together, we can accomplish great things for the residents of Manvel and for our City as a whole.”

Although it is anticipated to take several years to complete construction of the pond, once completed, it will provide over 1,000 acre-feet of storage capacity!

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