PHOENIX – A limited number of closures for freeway improvement projects are planned this weekend in the Valley.

The projects will take place from Friday night, Oct. 3, to Monday morning, Oct. 6, according to the Arizona Department of Transportation.

Southbound Loop 101 will be closed between Princess Drive/Pima Road and Shea Boulevard in Scottsdale from 10 p.m. Friday to 5 a.m. Monday for a widening project. Eastbound Loop 101 on-ramps at Scottsdale and Hayden roads also will be closed.

Drivers should consider alternate routes including southbound State Route 51 to eastbound Loop 202 to reach Loop 101 in the Tempe area. Eastbound Loop 101 drivers approaching the closure should consider exiting to southbound Scottsdale Road before using eastbound Shea Boulevard to Loop 101, state transportation officials said.

The northbound Loop 303 will be closed between I-10 and Happy Valley Parkway in the West Valley from 10 p.m. Friday to 1 p.m. Saturday for pavement sealing, and driver should plan on detours, including using north- and eastbound Loop 101 between I-10 and I-17 as an alternate freeway route.

Detours also will be in place using northbound Cotton Lane, Sarival Avenue and other streets. Crews will work to reopen northbound Loop 303 in sections as the pavement sealing progresses, according to ADOT.

Southbound Loop 303 will be closed between Happy Valley Parkway and I-10 in the West Valley from 10 p.m. Saturday to 1 p.m. Sunday for pavement sealing.

Drivers may use west- and southbound Loop 101 between I-17 and I-10 as an alternate freeway route. Detours also will be in place for southbound Loop 303 exiting at Happy Valley Parkway.

Crews will work to reopen southbound Loop 303 in sections as the pavement sealing progresses, officials said.