Drawdown & Structure Installation, Diamond Lake, Poweshiek County

The project involves cutting the dam for a controlled drawdown of Diamond Lake and installing a drawdown structure to aid in future lake drawdowns. The project documents, including plans, specifications, proposal forms, and addenda, are available at Beeline and Blue, 2507 Ingersoll Ave, Des Moines, IA 50312. Direct substitution requests, questions about the project, or questions concerning bidding and contract procedures should be emailed to [email protected]. The bid closing date and time are 7/23/2026 at 11:00 AM CST. • The project is located in Poweshiek County, Iowa. • The agency responsible for the project is the Natural Resources, Dept Of. • The project involves construction and installation work. • The bid documents are available at Beeline and Blue. • Questions and requests should be emailed to [email protected].