City of Branson, Mo. considers options to keep floodwaters out of wastewater treatment plant

BRANSON, Mo. -- The city of Branson is searching for a permanent solution to keep floodwaters out of its wastewater treatment plant.

The capital Improvements committee met Tuesday morning, where they gave approval for city staff to start working with an engineering firm on a permanent wall to go around the sewage treatment plant.

The Compton Drive Wastewater Treatment Plant sits right next to Lake Taneycomo. It has been in danger of flooding three times since 2011. City staff say floodwaters have been only inches from the top of the existing berm surrounding the facility. If it flooded, 3 to 4 million gallons a day of untreated sewage would flow into Lake Taneycomo for an extended period of time.

In 2017, the city purchased a $230,000 water inflatable aqua dam system to protect the treatment plant. But they say it's not an adequate long-term solution. Now the city wants to build a permanent flood wall around the plant with a pumping system.

The city already put out a request for proposals and got proposals from three different firms. Staff preferred the design by HDR engineering of Springfield. The Capital Improvements Committee gave city staff the okay to work with the firm to create a more detailed plan for the project and negotiate a price for the project's design.

The city expects the flood wall will cost in the range of 8 to 10 million dollars. The treatment plant is worth $80 million. The City of Branson will ask HDR Engineering to begin design and will negotiate a contract with the company, which staff will take to the board of aldermen in October.

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