# Cedar Rapids Ionwave #3318551-01 Addendum 6

8th Avenue Bridge Replacement and Cedar River Floodwall Construction

**Posted:** August 26, 2026
**Respond By:** November 04, 2026
**Identifier:** 3318551-01 Addendum 6
**NAICS:** 237310, 237990, 238190

The City of Cedar Rapids Public Works Department is seeking a contractor for the 8th Avenue Bridge Replacement and Cedar River Floodwalls project.
- **Buyer and project:** City of Cedar Rapids, Public Works Department; Contract 3318551-01. Work is along 8th Avenue SE/SW and Diagonal Drive SW, between 1st Street SW and 3rd Street SE.
- **Major construction scope:** Demolish the existing bridge and build a new cable-stayed bridge with flood-control components, approach roads, traffic improvements, sidewalks, shared-use trails, utility reconstruction, drainage, and lighting.
- **Stay cable system:** One complete system (SP-020), including HDPE sheathing and an integral passive ice-management profile. FHWA concurrence and compliance documentation are required for the proposed system classification and manufacturing plan; no corrosion-protection coating is required.
- **Other specified quantities:** 17,080 LF of steel HP 14 x 73 piles (2501-0201473); a 65 LF demonstration shaft (2433-0003000); and specified site materials and work including 15,221 SY of subbase (2010-J), 1,471 SY of shared-use path concrete (7030-C), 3,526 SY of sidewalk concrete (7030-E), 15,558 SY of sod (9020-A), 12,981 LF each of filter sock installation and removal (9040-D-1 and 9040-D-2), and removal of 12 light poles (2401-6745765).
- **Test-pile items in the supporting report:** Four 50-foot HP 14x73 H-piles and two 50-foot PZC-26 sheet piles were used for a test-pile program; these are reported test quantities, distinct from the construction bid quantity of steel piles.
- **Notable requirements and coordination:** The bike-path railing is to use domestic-origin duplex stainless steel. Existing bridge demolition includes salvaging 600 feet of railing for public distribution, 40 feet of railing and posts for public art, and at least a 16-foot section of variable-depth steel girder. Lead-containing bridge paint requires applicable removal precautions. MSE wall analysis identifies coordination needs, including longer reinforcement and ground improvements at Wall 7.
- **Named organization:** Stanley Consultants prepared the MSE wall stability calculation. No stay-cable or other construction-product OEM is identified by name.
- **Cost and duration:** The engineer’s opinion of probable cost is $123,000,000. Final completion is required within 1,250 calendar days after notice to proceed; no option years are stated.

### Description

The work generally consists of demolishing the existing bridge and constructing a new cable-stayed river bridge with integral flood-control system components. The scope also includes approach roadways, traffic improvements, sidewalks, trail reconstruction, utility reconstruction, and lighting. The project is located in Cedar Rapids, from 1st Street SW to 3rd Street SE along 8th Avenue SE/SW and Diagonal Drive SW. The engineer’s opinion of probable cost is $123,000,000, and final completion is 1,250 calendar days.

[View original listing](https://citycrbids.ionwave.net/PublicDetail.aspx?bidID=1958&SourceType=1)