Iowa City is canceling a $1.3 million project that would have improved the Riverside Drive pedestrian bridge and spiral ramp at Iowa Avenue after no contractors bid on the project.
Construction on the project was scheduled to start in the spring of 2025 and end later in the summer. The rehabilitation project would have included improvements to the concrete on the bridge and ramp, expansion joint rehabilitation, as well as a new handrail and lighting.
A 2019 report found concrete spalling and exposed reinforcement on the bridge. The proposed project planned to improve the aesthetics of the bridge while also addressing concerns about the state of the concrete.
City Manager Geoff Fruin said the city has no structural concerns with the current bridge and will continue to evaluate the future of the bridge in the coming years while performing ongoing maintenance on the structure.
Minimizing travel impacts
The deadline to bid on the project was Oct. 4, but the city extended the deadline after no contractors bid on the project. The decision to cancel the project was made earlier this month after the city gathered feedback from project contractors.
“The project schedule and work limitations were quite stringent as the City was aiming to minimize impacts on all modes of travel during construction,” Fruin said.
The pedestrian bridge, which crosses a busy Riverside Road, connecting the University of Iowa medical campus with the main campus, would have been closed for the entirety of the project. Additionally, one lane of traffic would be closed at times during the construction period.
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“As we explored other approaches to the project, we concluded that in the short-term that changes to the construction approach that could attract more contractors to bid on the project, would have had too significant of impacts on travel in that region,” said Fruin.
Shared maintenance responsibility
The Iowa Department of Transportation, University of Iowa and City of Iowa City share responsibility for the maintenance of the pedestrian bridge.
The DOT is responsible for 50 percent of all maintenance costs associated with the bridge, while the city and university are each responsible for 25 percent.
Iowa City would have spent approximately $325,000 on the pedestrian bridge rehabilitation project.
Other pedestrian bridge will be studied
A similar pedestrian bridge down the road also may undergo future work.
Preliminary work is underway to replace Iowa City’s Burlington Street Bridges, which cross the river east of Riverside Drive, one eastbound and one westbound. A 2021 inspection reported the bridges were in “poor” condition and “structurally deficient.” The cost estimate for the project is $30 million.
A consultant, Cedar Rapids-based HDR, is studying the bridges to offer a preliminary design for their replacement. Iowa City, the University of Iowa and the Iowa DOT are working together on the project.
As part of the study, the spiral pedestrian ramp and bridge at Riverside Drive and Burlington Street also will be examined. The current ramp — whose design is similar to the bridge at Iowa Avenue — is not compliant with the Americans with Disabilities Act.
A preferred design for the Burlington Street Bridges project is expected to be finalized in 2026.
Iowa City is canceling a $1.3 million project that would have improved the Riverside Drive pedestrian bridge and spiral ramp at Iowa Avenue after no contractors bid on the project.
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