Drawdown & Structure Installation, Diamond Lake, Poweshiek County

This project consists of cutting the dam for a controlled drawdown of Diamond Lake. A drawdown structure will be installed to aid in future lake drawdowns. *** Project documents, including plans, specifications, proposal forms, and addenda for this project are available at Beeline and Blue, 2507 Ingersoll Ave, Des Moines, IA 50312. Please visit www.beelineandblue.com or contact (515) 244-1611 for more information. *** Direct substitution requests, questions about the project, or questions concerning bidding and contract procedures to DNR Procurement. To be considered, these requests must be emailed to constructionbids@dnr.iowa.gov by 12:00pm the Friday prior to bid letting with the following subject line: Contractor Question - Project Number - Project Location *** Bid Closing Date and Time: 7/23/2026 at 11:00 AM CST