A section of northbound Interstate 17 in north Phoenix is scheduled to be closed this weekend for ongoing pavement improvement work.

State transportation officials advise drivers should allow extra time, consider traveling during non-peak morning or nighttime hours and stay on the designated detour route when northbound I-17 is closed between Happy Valley Road and Loop 303 from 10 p.m. Friday, Aug. 2, to 5 a.m. Monday, Aug. 5. 

Traffic will detour on westbound Happy Valley Road to northbound Lake Pleasant Parkway and use eastbound Loop 303 to return to I-17, according to the Arizona Department of Transportation.

The northbound I-17 on-ramps at Deer Valley and Pinnacle Peak roads also will be closed.

More tips from ADOT:

• Northbound I-17 drivers should avoid attempting to use local streets as alternate routes. The posted detour, which will be monitored by off-duty officers and project staff, is the most efficient way to move through the area near the closure.   
• Those with weekend plans to use northbound I-17 through the north Valley can consider traveling before Friday night’s closure begins. Traffic on northbound I-17 also generally is lighter during the early morning hours or later at night and is expected to be especially busy on Saturday and Sunday afternoons.
• Local-only closures at neighborhood entrances on a number of streets near I-17 will direct detour traffic away from local roads. Law enforcement officers will be stationed at intersections throughout the area to assist with traffic flow.

ADOT also is taking steps to reduce the chances that navigation apps will direct drivers to other local roads. Staying on the detour route regardless of what a navigation app may suggest is the best way to reduce delays, officials said.  

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