Southbound Interstate 15 in Roy is scheduled to close on Friday and Saturday nights to allow work on water pipelines beneath it.
It is scheduled to close between Riverdale Road and 5600 South from 10 p.m. on Friday until 8 a.m on Saturday, and again from 10 p.m. on Saturday until 9 a.m. on Sunday.
Southbound traffic will be detoured off of I-15 at Interstate 84. The detour will follow I-84 to Riverdale Road, then go to 1900 West, and follow it to 5600 South where cars may re-enter the freeway.
The Utah Department of Transportation advises motorists to plan for heavier than normal delays, or avoid the area entirely, if possible.