Gillette - Montana State Line (Olmstead Creek Section)

The Wyoming Department of Transportation is requesting sealed bids for a mill and overlay project with structural replacement on Wyoming Highway 59 (project STP-P461001) in Campbell County between Gillette and the Montana State Line, with bids due electronically through the WYDOT iCX system by 10:00 a.m. Mountain Daylight Time on September 10, 2026. Pre-qualification is required for all bidders.

The scope encompasses mill and overlay of existing pavement, replacement of one structure, stripping and placing topsoil, excavation and subgrade reinforcement, road base placement, asphalt pavement installation, structural steel work, riprap placement, structural concrete, and fence installation on WYO 59 beginning at reference marker 163.50. The estimated project completion date is June 30, 2028. Place of performance is Campbell County, Wyoming.

Bid proposals will be received electronically; bid opening will be conducted online via Zoom and in-person at WYDOT Headquarters in Cheyenne. Project documents are available through QuestCDN for a $35.00 delivery fee (file size 353 MB). The Wyoming Department of Transportation Contracts & Estimates Office is located at 5300 Bishop Boulevard, Cheyenne, WY 82009; contact 307-777-4487 or 307-777-4150, or email dot-ceoffice@wyo.gov. Technical support for website issues is available at 952-233-1632.