A22 - Attachment J-4 Supplemental Data.pdf

Attachment J-4 is a supplemental data document for the Cedar Rapids Flood Risk Management Project, Reach 4 Phase 1 Downstream River Floodwall and Pump Station solicitation issued by the U.S. Army Corps of Engineers, Rock Island District. The project involves a construction contract with an estimated value between $25 million and $100 million, classified under NAICS code 237990 and structured as an unrestricted Invitation for Bid.

The project scope encompasses comprehensive site development and infrastructure work, including site demolition, temporary traffic controls, utility removal and abandonment, pavement construction, and installation of critical flood management infrastructure. Key elements include constructing a cast-in-place concrete floodwall, storm sewer outlets, gate wells, geotechnical instrumentation, relief wells, trench and toe drains, and a pump station. A mandatory site visit is scheduled for 02 December 2025 at 9:00 AM CST, with an RSVP required by 28 November 2025. Potential bidders must submit questions via ProjNet by 2:00 PM CST on 05 December 2025.