Intersection improvements ramp up on Idaho 55 in Canyon County; motorist urged to plan ahead and consider alternate route

The Idaho Transportation Department is advising motorists to prepare for construction-related delays at the Lake Avenue and Midway Road intersections on Idaho 55 over the next several weeks. Crews will install mobile signals at both intersections the week of Oct. 23 and prepare to close areas for widening.

What’s Next:

ITD is repaving Idaho 55 between Pride Lane in Caldwell and Middleton Road in Nampa and improving the intersections at Farmway Road, Lake Avenue and Midway Road. Weather permitting, the project is expected to be completed in late 2017.

While the mobile signals are in place, left-turning traffic at both intersections will use the through lane. The temporary configuration will give crews more room to widen the intersections.
To give crews room to excavate and pave new turn lanes, ITD will schedule multiple road closures at the two intersections this fall. Each intersection includes two work areas – one north and one south of Idaho 55. Closures will rotate, leaving only one area closed at any time. The four work areas include:
• North Midway Road from Homedale Road to Karcher Road.
• South Midway Road from Orchard Avenue to Karcher Road.
• North Lake Avenue from Homedale Road to Karcher Road.
• South Lake Avenue from Karcher Road to Orchard Avenue.

Each closure will remain in place 24/7 for approximately three days. Residents will have access to their homes during the closures. All other local traffic will be detoured. Click here for a map of the detour routes.

“We are urging motorists to plan ahead, slow down and find an alternate route if possible over the next few weeks,” said ITD Construction Coordinator Merrill Sharp. To sign up for email construction updates, text IDAHO55 to 22828, email or call (208) 334-8938. More information is available at