Sept. 14 through 16, 1100 South (US-91) in Brigham City will be closed to all traffic.
The project, which has been in motion for months, will lead to a new diverging diamond interchange in connection with I-15.
During the closure, I-15 will remain open, but traffic will not be able to enter or exit I-15 at 1100 South, or travel to the west side of I-15 on 1100 South.
UDOT advises northbound traffic intending to exit I-15 at 1100 South to use Exit 351 in South Willard/Hot Springs and travel north toward Brigham City on US-89.
Southbound I-15 traffic intending to exit I-15 at 1100 South should use Exit 365 at 900 North near Corinne, traveling east on State Route 13, and then south on Main Street to US-89. Vehicles will return to I-15 at either 750 North in Willard (SR-315), or via the South Willard Interchange (SR-126) in South Willard/Hot Springs.
Westbound 1100 South traffic intending to head north on I-15 should travel north on Main Street in Brigham City, following it to 900 North, then continue west to the I-15 interchange near Corinne.
Westbound 1100 South traffic intending to head south on I-15 should travel south on US-89 and enter I-15 at 750 North in Willard.
The closure is scheduled to take place from Sunday morning through Tuesday afternoon. The intersection is the main artery for traffic entering Cache Valley. For more detailed information on the closure, visit the UDOT website.