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Council to pursue USEP deceleration project after DOT declines acceleration lanes at Thunder Hills/Cox Springs
Summary
The Peosta City Council heard DOT feedback that district staff are not recommending acceleration lanes at the Thunder Hills/Cox Springs corridor and agreed to submit a USEP application focused on an offset deceleration/right‑turn improvement while coordinating timing with county projects.
Peosta — Councilmembers and city engineering reviewed recent DOT feedback on Highway 20 intersection improvements and decided to prioritize a right‑turn/off‑ramp deceleration improvement in a USEP application rather than pursuing acceleration lanes.
Ben (engineering) summarized conversations with Russell at DOT: "At the district level, the DOT is not interested in any of the acceleration lane options or either of the acceleration options," he said, adding that the district did not see sufficient benefit to tie acceleration into the current project. Councilmembers noted the DOT traffic study showed higher‑than‑expected right‑turn volumes in some locations and asked staff to revisit eastbound volumes from Thunder Hills and discuss rationale with county staff.
Why it matters: Council members said an offset deceleration/right‑turn improvement could reduce congestion and conflict at the intersection without the larger scope of acceleration lanes. The council asked staff to coordinate timelines with county resurfacing and median work so construction can be staged efficiently.
What’s next: The engineering team will submit a USEP application targeting the offset deceleration/right‑turn improvement and will follow up with Russell and the county engineer about coordination and future acceleration‑lane prospects.
