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Board amends county five-year road program, moves several projects including Tamarack resurfacing into nearer years
Summary
Pottawattamie County approved amendments to its 2025 five-year road program to advance Washington 42 bridge work and move Tamarack resurfacing into nearer years with scaled-back scope and changed funding sources; one federal-funded reconstruction project was reduced to match available DOT funding.
The Pottawattamie County Board approved a resolution amending the county’s 2025 five-year road program to move several projects into the accomplishment year and adjust funding and scopes.
County staff said Washington 42, a trust bridge similar to a project recently completed, will be advanced and expected to begin work before July 1. The Tamarack project was moved from an illustrative fiscal year 2030 slot into fiscal year 2026 with a change of scope: instead of a full reconstruction originally estimated at $20 million, staff recommended a partial-depth recycling and resurfacing approach priced at about $5.5 million to extend the road’s life by roughly 10–15 years. Staff said the county will remove about 2.5 inches of existing pavement and replace with about 3 inches of new asphalt — using in-place recycling methods to limit trucking and road wear.
Staff also adjusted the L34 reconstruction item to match Federal-Aid funding in the Iowa DOT Transportation Improvement Program: the programmed federal amount was reduced from $3.6 million to $2.27 million to align with DOT allocation. County engineers noted some projects could move back a year if funding shifts.
Why it matters: The amendments re-prioritize limited transportation funds, trade off scope for affordability on Tamarack and align projects to available federal funding. These changes affect local road conditions and maintenance scheduling over the next decade.
Board action: Supervisors voted to approve the amended five-year program and authorized staff to proceed with design, funding coordination and future bidding as outlined. Staff noted longer-term designs and DOT processes will guide final construction scheduling.
