Traffic Alerts - Loop 303: Happy Valley Parkway to Lake Pleasant Parkway

Southbound Loop 303 on-ramp at Lone Mountain Parkway closed overnight Thursday, Oct. 28

The Arizona Department of Transportation advises drivers to plan ahead for the closure of the southbound Loop 303 on-ramp at Lone Mountain Parkway from 9 p.m. Thursday, Oct. 28 to 4 a.m Friday, Oct. 29. DETOUR: Drivers can use the on-ramp at Happy Valley Road to access southbound Loop 303.

Ongoing restrictions

The inside (left) shoulder in both directions, and the southbound left lane, between Happy Valley and Lone Mountain parkways is scheduled to remain closed through November. Additional restrictions may be needed through completion of the Loop 303 project, which is anticipated by early 2022.