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Jackson County approves TSIP application to fund safety work, including realignment, on 390 Fifth Avenue
Summary
The Board of Supervisors approved a fiscal year 2027 Transportation Safety Improvement Program application to realign a horizontal curve, flatten a vertical profile and add paved shoulders and rumble strips on 390 Fifth Avenue; county staff said the road rehabilitation will proceed regardless of grant outcome.
Jackson County supervisors voted Tuesday to approve a fiscal year 2027 Transportation Safety Improvement Program (TSIP) grant application to pay for safety improvements on 390 Fifth Avenue, including realigning a horizontal curve, flattening a vertical profile and adding paved shoulders and shoulder and centerline rumble strips.
County Engineer described the work as intended to improve sight distance at a curve near the intersection of 390 Fifth and 308 Street and to address a recurring depressed section in the middle of the curve. The TSIP submittal mirrors a previously unsuccessful RAISE grant application, officials said; the county is pursuing the same scope for TSIP funding.
The supervisors approved the application by motion; the board did not record a roll-call vote and the motion carried after all present said “aye.” County staff said the project is on the county's five-year road program and that, if the TSIP application is unsuccessful, the planned road rehabilitation will still be completed in-place without the realignment element.
Officials estimated the right-of-way needed for the proposed realignment at roughly 4 acres and said the intersection location would remain in essentially the same place while the approach north of that intersection would be straightened. Staff said they have not yet discussed potential right-of-way impacts with landowners but will do so if the county proceeds with the grant submittal; supervisors asked that owners be notified as a courtesy because grant awards typically are not known until December or January.
Design elements county staff described during the meeting include paved shoulders, shoulder rumble strips, centerline rumble strips and profile adjustments to raise sight distance by both straightening the horizontal alignment and flattening the vertical curve. Staff also discussed variation in asphalt depths along the roughly 1.5-mile stretch and said they had met with representatives of the Asphalt Paving Association of Iowa to find appropriate rehabilitation options.
No final budget amount for the TSIP request was stated during the discussion; supervisors emphasized that the county will plan to add shoulder rumble strips and other safety treatments using county funds if a grant does not cover them.
The board directed staff to submit the TSIP application as presented and to begin outreach to affected landowners while the application is pending.
