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Supervisors approve joint Greene‑Carroll bridge replacement on Apple Avenue south of Ralston
Summary
Carroll County supervisors approved final plans and authorized signatures for a joint bridge replacement on the Greene County line; the project is estimated at about $850,000 and will be funded in part with federal HPP bridge funds.
The Carroll County Board of Supervisors voted Tuesday to approve final plans and authorize signatures for a joint bridge replacement on the Greene County line at Apple Avenue south of Ralston.
Zach, the county roads representative, described the project as Greene County‑owned but jointly funded because the bridge sits on the county line. He said the county plans to use federal Highway Bridge Program (HPP) funds and that Carroll County’s share would be roughly half of the total estimated cost. “We’re looking to use our HPP federal, bridge funds to replace this,” Zach said. The estimated total cost reported at the meeting was about $850,000; the design calls for a roughly 70‑foot slab bridge with a 30‑foot roadway width.
Zach said the detour will likely route traffic through Greene County and estimated construction at about 12 weeks, subject to seasonal and environmental restrictions. He noted the Topeka shiner, a locally present fish species, affects allowable in‑water work windows and could influence timing.
The board moved to approve the final plans and allow county signatures. After a motion and second, supervisors voted “aye” and the motion carried. Greene County approved its final plans the same morning, and the design will be turned into the Iowa DOT for a March letting.
Why it matters: the replacement will restore a deteriorating structure on a county boundary road and is funded with a mix of federal bridge funds and county cost share; timing can be constrained by species protection and typical construction‑season limits.
