Several improvement projects will require closures along Phoenix-area freeways this weekend, and state transportation officials said drivers should allow extra travel time and plan detour routes.

Here is what crews will be working on Friday night to Monday morning, July 21-24, and the Arizona Department of Transportation’s suggestions for navigating the freeways this weekend:

• Westbound US 60 will be closed between Loop 101 and Interstate 10  from 9 p.m. Friday to 5 a.m. Monday for pavement improvements. 

Both Loop 101 ramps to westbound US 60 will be closed. Detours: Consider using westbound Loop 202 as alternate routes to reach I-10. Drivers also can consider using westbound Southern Avenue, Baseline Road or Broadway Road to travel beyond closure.

• Southbound Interstate 17 will be closed between Pinnacle Peak Road and Loop 101 in north Phoenix from 9 p.m. Friday to 5 a.m. Monday for a pavement improvement project.

The southbound I-17 on-ramp at Happy Valley Road also will be closed along with southbound I-17 ramps to Loop 101. The Loop 101 ramps to southbound I-17 will be open. ADOT officials said to expect heavy traffic and allow extra travel time. Detours: Southbound I-17 drivers can consider exiting ahead of the closure and using local routes, including southbound 19th or 35th avenues, to travel beyond closure.

• Eastbound I-10 will be closed between I-17 and SR 51 from 9 p.m. Friday to 9 a.m. Saturday for tunnel maintenance. 

North- and southbound I-17 ramps to eastbound I-10 will be closed. Detour: Eastbound I-10 traffic can detour on southbound I-17 and reconnect with I-10 near Sky Harbor Airport.

• Westbound I-10 will be closed between I-17 near Sky Harbor Airport and Seventh Avenue from 9 p.m. Saturday to 9 a.m. Sunday for tunnel maintenance. 

The southbound SR 51 ramp to westbound I-10 will be closed. The westbound Loop 202 ramp to I-10 westbound will remain open, but traffic must exit I-10 at Seventh Street, according to ADOT. The westbound Sky Harbor Boulevard ramp to westbound I-10 will remain open, but traffic will need to exit to northbound SR 51 or eastbound Loop 202.

Westbound I-10 on-ramp at Washington Street also will be limited to traveling to northbound SR 51 or eastbound Loop 202. The southbound I-17 ramp to westbound I-10 near Sky Harbor Airport will be closed.

 Primary detour: Westbound I-10 traffic approaching the closure can use northbound I-17 to connect with I-10 at the Stack interchange (north of Van Buren Street).

• Southbound Loop 303 will be closed between Indian School Road and I-10 in Goodyear from 8 p.m. Friday to 9 p.m. Saturday for pavement maintenance. 

Southbound Loop 303 on-ramps at Glendale Avenue, Bethany Home Road and Indian School Road also will closed. Northbound Loop 303 will then be closed between I-10 and Indian School Road from 9 p.m. Saturday to 5 a.m. Monday. I-10 ramps to northbound Loop 303 will be closed.

Detours: Consider exiting ahead of either closure and using local routes, including Sarival Avenue, Cotton Lane or Pebble Creek Parkway. Note: Times are subject to adjustment due to progress made over the weekend.

• Eastbound I-10 will be narrowed to three lanes between 32nd Street and Broadway Road from 10 p.m. Friday to 6 a.m. Sunday and from 8 p.m. Sunday to 4 a.m. Monday for bridge work. 

The eastbound I-10 off-ramp at Elliot Road will be closed from 6 a.m. to 4 p.m. Saturday. ADOT suggests drivers consider  exiting at Warner Road.