Northbound Interstate 15 will be reduced to one lane, resulting in a 224-mile detour for vehicles wider than 10 feet.
The detour begins 6 a.m. Monday, Oct. 12, and continues through Friday, Nov. 13.
The Arizona Department of Transportation has advised drivers traveling between Mesquite, Nev., and St. George, Utah to plan ahead for delays through the Virgin River Gorge.
Due to the Virgin River Gorge terrain and the narrow width of I-15, crews must reduce the width of the travel lanes. This will cause wide-load trucks to use a detour through the construction zone.
All vehicles wider than 10 feet must use the 224-mile detour route. Signs will direct wide-load traffic to the detour route of US 93, Nevada State Route 319, and Utah State Route 56 between Las Vegas and Cedar City, Utah.
Northbound I-15 will be narrowed to one lane at milepost 22 (between Cedar Pocket Road and Black Rock Road).
Vehicles that do not exceed the load-width limit will be able to proceed through the work zone with caution.
Southbound I-15 will not be impacted by this work.
Crews will be working to repair a bridge that was damaged in a semi-truck accident. The truck had been traveling northbound on I-15 when it crashed and caught fire while crossing Bridge No. 7.
The guardrail, concrete barrier wall and bridge deck will all be repaired.