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Herriman formalizes state, county funding for 7300 West; city officials explain high per-mile cost
Summary
Herriman City confirmed an interlocal agreement to fund roughly one mile of 7300 West with outside dollars (state ~$10.5M; Salt Lake County ~$4.0M). City engineers defended the roughly $14 million per-mile cost, citing major earthwork, utilities and a pedestrian culvert for the Butterfield Creek Trail.
Herriman City officials said the council formalized an interlocal funding agreement to build roughly one mile of 7300 West, with about $10.5 million from the state and roughly $4.0 million from Salt Lake County and without using Herriman’s general budget for construction.
City engineer Bryce Terry told the podcast the project’s cost reflects substantial earthwork, utilities and trail accommodations. “Dollars 14,000,000 for 1 mile of road seems like a lot,” Terry said, “but this road has a lot of fill or dirt to bring up the road … in some cases we’re bringing it up 20 feet, to go over kind of a creek and we’ll have the trail go underneath it.” The design includes a pedestrian culvert to carry the Butterfield Creek Trail under the roadway, Terry said.
Officials said initial earthwork has already started near Main Street and 7300 West. John LaFollette, Herriman’s communications manager, said the interlocal agreement mainly formalizes pass-throughs and reimbursements from state and county partners rather than relying on city capital funds.
The hosts also highlighted other near-term street work: the 6400 West extension (less than a third of a mile) was estimated at about $5.5 million for a greenfield build. Terry and LaFollette emphasized that road costs reflect more than paving: water, storm drains, sewer, street lights, landscaping, right of way, base and road-bed materials and contractor availability.
Terry and LaFollette discussed market pressures that affect timing and cost. Utah’s paving season is typically limited to April–October, and projects from state agencies, sewer districts and private developers often overlap in the same construction window. Terry said that constraint, plus regional competition for specialized equipment such as pavement mills, contributes to higher prices and scheduling conflicts. He also warned of inflation risk: the city is using current funding levels in part because delaying projects often increases costs.
Next steps include completing design details, executing contracts and processing reimbursements under the interlocal agreement. Officials recommended that residents expect staged construction impacts in the area while work continues.
