Iowa City Community School District Bidopportunities #25-02-37-01

Replacement of Sheet Pile Water Control Structure at Dunbar Slough WMA, Greene County, Iowa

This opportunity involves the replacement of a water control structure at Dunbar Slough Wildlife Management Area in Greene County, Iowa. - Government Buyer: - Iowa Department of Natural Resources (DNR) - Engineering Section, 6200 Park Ave., Suite 200, Des Moines, IA 50321 - Project Scope: - Remove and dispose of the existing 38-foot metal sheet pile water control structure - Install a new sheet pile water control structure, including: - 396 square feet of SKL-12 sheet piling (22 pieces, each 10 feet long) - 6 aluminum stop logs (fabricated and installed) - 1 lock bar and 2 steel stop log lifting tools - Backfill with 40 tons of unscreened Class E revetment (or approved substitute) - Fabricate and install stop log channels and pile caps - All steel components must be galvanized - Compliance with Iowa DOT standards and a one-year warranty on workmanship and materials - OEMs and Vendors: - No specific OEMs are named; the solicitation is open to qualified contractors able to meet the technical specifications - Unique/Notable Requirements: - All steel components must be galvanized - Contractor must provide lock bar and lifting tools for stop logs - One-year warranty required on all workmanship and materials - Compliance with Iowa DOT standards - Place of Performance: - Dunbar Slough Wildlife Management Area, Greene County, Iowa - Iowa DNR Engineering Section office (for administrative coordination) - Products/Services Requested: - SKL-12 sheet piling (396 SF, 22 pieces, 10 ft each) - Aluminum stop logs (6) - Lock bar (1) - Steel stop log lifting tools (2) - Class E revetment (40 tons) - Mobilization, demolition, and installation services

Description

This project involves the removal of the existing sheet pile water control structure and the installation of a new sheet pile water control structure, which will be backfilled with rock. The work is located at Dunbar Slough WMA in Greene County, Iowa. Bids must be submitted electronically by 3:00 PM on June 11, 2026. The project includes detailed plans and a bid package provided by the Iowa Department of Natural Resources.

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