Southbound Interstate 17 will be closed this weekend between Pinnacle Peak and Thunderbird roads, Arizona transportation officials said.

The freeway section will be closed from 9 p.m. Sept. 15 to 5 a.m. Sept. 18 for pavement improvements.

Both Loop 101 ramps to southbound I-17 will be closed as will the southbound I-17 on-ramp at Happy Valley Road.

Drivers on southbound I-17 can consider exiting ahead of the closure and using detours, including southbound 19th Avenue, to travel beyond closure, according to the Arizona Department of Transportation.

Drivers on Loop 101 can exit ahead of the I-17 ramp closures and use local routes, including southbound 19th or 35th avenues to Thunderbird or Cactus roads, to reach southbound I-17, officials said.