# Cedar Rapids Ionwave #3318551-01 Addendum 8

Cedar Rapids 8th Avenue Bridge Replacement and Flood-Control Construction

**Posted:** August 26, 2026
**Respond By:** November 12, 2026
**Identifier:** 3318551-01 Addendum 8
**NAICS:** 237310, 237990, 238110, 238190

The City of Cedar Rapids Public Works Department is seeking bids for a major bridge replacement and integrated flood-control construction project over the Cedar River.
- Buyer: City of Cedar Rapids, Iowa — Public Works Department.
- Scope: Demolish the existing 8th Avenue Bridge and build a new cable-stayed bridge with floodwalls, approach roadways, traffic improvements, sidewalks, trails, utilities, lighting, and related work.
- Construction materials and quantities include 15,221 SY of modified 6-inch subbase; 1,471 SY of 8-inch shared-use path PCC; 3,526 SY of 6-inch sidewalk PCC; 15,558 SY of sod; 12,981 LF each of 12-inch filter sock and filter sock removal; and removal of 12 light poles.
- Bridge-related items include one stay cable system (SP-020), 65 LF of demonstration shaft (2433-0003000), and 17,080 LF of steel HP 14 x 73 piles (2501-0201473). Test-pile report items include four HP 14x73 H-piles and two PZC-26 sheet piles, each 50 feet long.
- Notable requirements: The complete stay-cable system must include its integral passive ice-management profile. The contractor is responsible for vibration monitoring, construction submittals, and applicable Buy America compliance; FHWA concurrence is required for the stay-cable classification and manufacturing plan. Salvage requirements include 600 feet of railing, 40 feet of railing and posts for public art, and at least 16 feet of variable-depth steel girder.
- The project also includes MSE walls with stated design criteria, lead-related precautions during demolition, and protection of the public, utilities, and nearby structures. Test-pile monitoring found disruption-level noise and vibration at the Courthouse, though vibration remained below structural damage thresholds.
- Estimated probable cost: $123 million. No product OEM is identified. **Stanley Consultants**, Terracon, and TY Lin International are mentioned in engineering or project-document contexts, not as requested vendors; CRANDIC and Ingredion are referenced as monitoring locations.

### Description

The project includes demolition of the existing bridge and construction of a new cable-stayed bridge crossing the Cedar River, with integral flood-control system components. Work also includes approach roadways, traffic improvements, sidewalks, trail reconstruction, utility reconstruction, and lighting. The work 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=1966&SourceType=1)