Overnight Interstate closure will allow for sewer installation and road repair

September 16, 2026

CASPER – The Wyoming Department of Transportation will close a section of Interstate 25 within the current Casper construction area from 7 p.m., Saturday, Sept. 19 through 2 p.m., Sunday, Sept. 20. All interstate traffic will be detoured.

The closure is necessary for the installation of new sewer lines across the interstate and the repair of potholes along the live traffic lanes within the construction zone.

Northbound traffic will detour from the Curtis Street/Wyoming Boulevard exit to Yellowstone Highway, and reenter the interstate from the Bryan Stock Trail on-ramp via the F Street connector. Southbound traffic will exit I-25 at the Beverly Street/Bryan Stock Trail off-ramp, detour to Yellowstone Highway, and reenter the interstate at the Curtis Street/Wyoming Boulevard on-ramp.   

Flaggers will be stationed on Bryan Stock Trail at the ramps to direct traffic. The traffic signal at E Street and Bryan Stock Trail will be turned off during this closure. Please follow traffic control and obey the flaggers directing traffic.

Expect congestion along Yellowstone Highway and Bryan Stock Trail within the detour zone. Follow the detour signs, speed limits and traffic control. Consider alternate routes if possible.