Section of Piestewa Freeway closed this weekend

State Route 51 Northbound will be closed between Bell and Union Hills from 11 p.m. Friday to 5 a.m. Sunday. ADOT spokesman Doug Nintzel said crews will be installing a Freeway Management System.

“That includes overhead message boards, but also crews are installing the ramp meters along the on-ramps along that stretch of State Route 51 and then also freeway cameras are going in,” Nintzel said.

He noted the cameras are for traffic management, not to bust speeders.

Drivers can use 32nd or 40th Street as an alternative up to Union Hills.