Traffic changes
Detours are in place for turning traffic at the intersection of Yellowstone Avenue (US-91) and Flandro Drive. Continue reading for details.
Overview
ITD began work to replace concrete pavement on Yellowstone Avenue (US-91) in Pocatello and Chubbuck in July 2026. Work will occur in two locations:
Highway Avenue to E. Burnside Avenue in Chubbuck
Hurley Drive to south of Flandro Drive in Pocatello
Yellowstone Avenue/Flandro Drive Intersection
Crews are replacing concrete at the intersection of Yellowstone Avenue and Flandro Drive. This will require turn-lane closures and a sidewalk closure through October.
What to expect through late October:
- No right turns onto Yellowstone Avenue from eastbound Flandro Drive (leaving Costco). Motorists will detour to the parking lot exit to the south.
- No left turns onto Flandro Drive (heading toward Costco) from northbound Yellowstone Avenue. Motorists will use Quinn Road and Hiline Road to detour around the closure.
- View a detour map.
- On the southwest side of the intersection (near Costco), the pedestrian crosswalk to cross Yellowstone Avenue is closed. Pedestrians can detour to Pearl Street to reach their destination. View a pedestrian detour map.
- Traffic is expected to remain in this pattern through October.
Intermittent sidewalk closures
Intermittent sidewalk closures will occur along Yellowstone Avenue for multiple weeks as work continues on the City of Chubbuck water main.
What to expect:
- Intermittent sidewalk closures will occur on the west side of Yellowstone Avenue (US-91) between Chubbuck Road and Park Lawn Drive.
- Closures will continue through fall 2026.
- Pedestrians will use the crosswalks at the Yellowstone Avenue/Chubbuck Road intersection and the Yellowstone Avenue/Park Lawn Drive intersection to detour around sidewalk closures.
Traffic changes on Yellowstone Avenue in Chubbuck
Motorists can expect:
- Traffic is shifted to the east side of Yellowstone Avenue between Chubbuck Road and Highway Avenue.
- One lane is open in each direction on Yellowstone Avenue.
- No left turns within the shifted area.
- Traffic is expected to remain in this pattern through late summer.
Work includes:
- Cutting out and replacing damaged concrete slabs.
- Repairing cracks and resealing joints.
- Restriping the roadway.
What to expect during construction:
- Lane closures will occur on Yellowstone Avenue and flaggers will direct traffic when necessary.
- Work hours will vary. Expect daytime and nighttime work.
- Access to driveways and side streets will be restricted for several hours during paving.
- Work will be noisy and the area will be well-lit at nighttime.
- Bus stops may be temporarily relocated to maintain pedestrian safety during nearby work.
Other construction in the area:
The city of Chubbuck will coordinate with ITD to complete work on the city’s water main during the project. The water main is located on the west side of Yellowstone Avenue between Circle Inn Street and Mingo Lane. Work will occur during the daytime and will require lane closures on Yellowstone Avenue.
For questions about the city of Chubbuck’s water main, call (208) 237-2400 and dial extension 107.
Stay up to date:
- Sign up for email updates
- Call: (208) 239-3360
- Email: Asa.Flowers@itd.idaho.gov
Frequently Asked Questions
Access to businesses and residences will be temporarily restricted to allow concrete to dry. Restricted access is expected to last for a few hours. Businesses and residents will be notified of expected restrictions in advance. Flaggers will facilitate emergency access through the work zone when necessary.
Access to local roads may be restricted as crews connect the new concrete on Yellowstone Avenue to the existing pavement on local roads. Flaggers will be in place to maintain safety and the flow of traffic in the project area.
Work hours will vary. Expect daytime and nighttime work.
Yellowstone Avenue is a main thoroughfare in the area, serving access to many businesses, residences and services. Several concrete segments have deteriorated and have developed potholes, water damage and other signs of heavy use.
ITD uses concrete on Yellowstone Avenue because it can accommodate the high traffic volumes that use this roadway daily.