Des Moines County (Iowa) posted this RFP on Nov 6, 2026. Responses are due Dec 18, 2026. Category: Architecture & Engineering. Solicitation number DESMOINESCOUNTY-296D7801.
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Des Moines County Conservation solicits proposals from qualified engineering and environmental consulting teams to assess the technical, regulatory, environmental, and financial feasibility of sediment and nutrient reduction projects in the Big Hollow Lake watershed.
The study will evaluate four candidate rock chute wetland sites, an in-lake single forebay, a two-forebay alternative in the upper lake fingers, and other technically warranted configurations.
The scope covers feasibility assessment and preliminary engineering only; final design, permit applications, and construction are not included unless separately authorized.