Valley drivers in Phoenix should plan for delays and extra travel time this weekend.
Both sign installation and tunnel maintenance will require several freeways to be closed at times.
• Westbound Interstate 10 will be closed between Seventh Street and Seventh Avenue from 9 p.m. Saturday to 7 a.m. Sunday for tunnel maintenance. Ramps from southbound State Route 51 and the westbound Loop 202 will be closed at this time.
• The eastbound Loop 101 ramp to southbound SR 51 will be closed from 11 p.m. Friday to 3 p.m. Saturday for sign installation.
• Southbound SR 51 will be narrowed to one lane between Bell Road and Shea Boulevard from 11 p.m. Friday to 3 p.m. Saturday for sign installation. The southbound off-ramp at Bell Road will be closed at this time.
• Southbound SR 51 will be narrowed to one lane between Shea Boulevard and Northern Avenue from 10 p.m. Saturday to 3 p.m. Sunday for sign installation.