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County engineer outlines 5-year road plan, trials for dust-control stabilizer and multiple bridge projects
Summary
County engineer presented a five-year pavement management plan and a list of proposed maintenance and construction projects, proposed a trial of a polymer-based dust-control stabilizer (~$7,000 per mile) on targeted gravel segments, and flagged bridge inspections, culvert replacements and federal-aid projects to prioritize.
The county engineer presented an overview of secondary-road operations and a five-year pavement program that prioritizes treatments by remaining life, traffic volume and cost. The proposal includes surface treatments such as fog seals and microsurfacing, targeted reclamite use on new pavements, and a continued microsurfacing program intended to extend pavement life through 2031.
The engineer recommended a trial of a polymer-based soil stabilizer (described as a dust-control product) on several candidate gravel segments, estimating the material at about $7,000 per mile and suggesting an initial pilot program that could cost under $50,000 including labor and equipment rental. The trial would be monitored through one or more winters and into the following summer to assess maintenance needs, washboard resistance and lifecycle savings relative to current blading and rock replacement cycles.
Board discussion covered operational trade-offs: when to treat frost, the county’s brine/salt/sand mix, salt budget constraints between November and January, and the role of the local superintendent in day-to-day treating decisions under county ordinance. The engineer also described bridge and culvert priorities: a wooden bridge near the state line awaiting Minnesota inspection (likely resulting in posting), a 66-inch pipe needing replacement, and other structures with estimated remaining lives of 3–8 years. He outlined options such as metal pipe (cheaper, crew-installable) vs. concrete (longer-lasting but requiring crane/trucking coordination) and noted opportunities to split costs with townships for small culvert projects.
The engineer summarized procurement considerations for proprietary and bio-based pavement products, citing prior limited-test results and the need for larger field samples to evaluate lifecycle benefits. He also described a pile-replacement steel sleeve product and possible tank-car recycling as lower-cost bridge options. The board asked for cost detail and scheduling to be included in upcoming budget materials.
The engineer said federal-aid funding is secured for at least one larger project in the program (projected in 2028) and that the county would continue to use TIF funds strategically to smooth capital needs. No formal vote on the stabilizer pilot was recorded; the engineer characterized it as a proposed trial subject to later approval and monitoring.
