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Road projects: commissioners approve Adopt-a-Highway, mag chloride program; Copperleaf seal-coat estimate ~$30,000
Summary
The board approved an Adopt-a-Highway program and a mag chloride dust-control application process, and heard road engineers describe multiple paving, chip-seal and grading projects including a $30,000 ballpark estimate for sealing the Copperleaf subdivision.
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County road officials briefed commissioners on ongoing and planned road projects and the board approved two resident-facing programs: Adopt-a-Highway and a mag chloride (dust-control) application process.
Road operations specialist Todd Miller presented multiple active projects, including right-of-way offers for a roundabout, design and bidding for West Broadway mill-and-overlay, and a planned grading project for the 30 Third Street / 100th/10th Ave corridor. Miller said the grading-only portion could be ready for July bidding and that rough cost estimates were $400,000 for grading and roughly $1.5 million for future paving.
Miller reported the road department had been approached by residents in the Copperleaf subdivision asking to add a seal coat as part of a scheduled paving project. Using unit prices similar to the current bid, Miller gave a ballpark cost of about $30,000 for Copperleaf. Historically, the county asked subdivision owners to pay a share; Miller said earlier projects had a 30% owner share and the county would need to decide whether to pursue the seal coat this year or push it to the next season.
Commissioners approved two programs for residents: an Adopt-a-Highway agreement patterned on the state DOT form and a mag chloride dust-control application form. The mag chloride program allows property owners to request treatment of up to 500 feet of roadway (250 feet either side of an approach), with residents paying the product cost; the county would apply the product with county trucks. The county will update pricing when suppliers provide quotes for 2026.
Road maintenance updates included reports on recent seal-coat and overlay work, culvert replacements, hauling shale for surface work, and completed shoulder pulls and spring blading. Road operations reported about 830 regular blading hours in May and 123 overtime hours for storm and wet-weather repairs.
Board members asked staff to return with a clear proposal, including cost-sharing options, if commissioners want to add Copperleaf to an existing schedule. Other items reviewed included Baker Boy sewer relocation work near the new roundabout, where the county anticipates paying 50% for a 400-foot connection as part of a utility re-route.
The board took the road department approvals without amendment and directed staff to process Adopt-a-Highway and mag chloride forms for public use.

