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Creve Coeur considers wetland alternative as option to dredge Conway Park lake
Summary
City staff presented two rehabilitation options for Conway Park lake — dredging to create a deeper open-water pond or converting to a pocket wetland — and council members expressed a general preference for a well-designed wetland while raising questions about cost, maintenance and fish habitat.
Creve Coeur city staff on Monday presented two design options to address sedimentation and recurring algae issues at Conway Park lake: dredging to restore deeper open water or converting the site to a pocket wetland.
City engineer Steve Perez told the council that the pond, constructed in the mid-1980s, has largely filled with sediment and that one of the two existing control structures is not functioning. Perez outlined a deep-water pond design with a 12-foot deep hole and other areas 6 feet deep, forebays to trap sediment, and on-site dewatering where excavated material would be spread and regraded and then covered with native plantings. He said staff had an initial construction budget figure “around $410,000” but that a…
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