Lane closures will complicate travel this weekend on Interstate 15 in Salt Lake and Juab counties, and on U.S. 89 in Davis County.

The Utah Department of Transportation advises drivers to plan ahead for the following restrictions:

• I-15 in Salt Lake City: Southbound I-15 will be reduced to one lane near 500 South from Sunday at 9 p.m. until Monday at 5 a.m. The on-ramp from 500 South to southbound I-15 will also be closed during that time.

The closure will allow crews to complete pavement repairs and bridge maintenance.

• I-15 in Sandy: Northbound I-15 will be reduced to one lane near 9000 South on Friday and Saturday nights, between 8 p.m. until 4 a.m. the next morning. Lanes are being narrowed and shifted for bridge and ramp work as part of a project that is adding a new northbound travel lane there.

• I-15 in Juab County: Northbound I-15 is reduced to one lane between the Juab-Millard county line north of Scipio and the Sevier River bridge south of the Yuba Lake exit through Wednesday.

UDOT says drivers should plan for delays of up to 45 minutes on Sunday from 2 p.m. to 6 p.m. and avoid travel there during that time. Crews are repaving a seven-mile stretch there.

• U.S. 89 in Davis County: It will be reduced to one lane in both directions between Crestwood Road in Kaysville and Green Road in Fruit Heights. The closure on Friday night is from 9 p.m. until 8:30 a.m. on Saturday. On Saturday night, the closure begins at 7 p.m. until 5 a.m. on Monday.

Those closures will allow shifting travel lanes to the east and temporarily relocating an intersection at 200 North/400 North. They will remain in place through next summer during a project to widen and reconstruct the highway.