The Arizona Department of Transportation advises drivers to plan for overnight closures of Interstate 17 in Flagstaff from Monday, June 10, to Thursday, June 13, as crews continue work on a new bridge at the John Wesley Powell Boulevard interchange. The closure dates of north- and southbound I-17 will be staggered so the entire roadway will not be closed at the same time.
Drivers should allow extra travel time while the following restrictions are in place from 7 p.m. to 5 a.m.:
Monday, June 10, and Tuesday, June 11:
- Northbound I-17 will be closed at the John Wesley Powell Boulevard interchange (exit 337). Northbound I-17 will also be narrowed to one lane (left lane closed) as traffic approaches the interchange beginning at 5 p.m.
- Drivers will use the off- and on-ramps at John Wesley Powell Boulevard to exit and re-enter the interstate.
- Drivers can turn right on John Wesley Powell Boulevard to access Flagstaff Pulliam Airport.
- Drivers looking to access State Route 89A and the Fort Tuthill Recreation area will need to take I-17 north to McConnell Drive, and then proceed southbound on I-17 to the John Wesley Powell Boulevard interchange.
- The John Wesley Powell Boulevard overpass will also be closed to motor vehicles, pedestrians and bicyclists.
- The speed limit will be reduced to 35 mph.
Wednesday, June 12, and Thursday, June 13:
- Southbound I-17 will be closed at the John Wesley Powell Boulevard interchange (exit 337). Southbound I-17 will be narrowed to one lane (left lane closed) as traffic approaches the interchange beginning at 5 p.m.
- Drivers will use the off- and on-ramps at John Wesley Powell Boulevard to exit and re-enter the interstate.
- Drivers can turn right on John Wesley Powell Boulevard to access SR 89A and the Fort Tuthill Recreation area.
- Drivers looking to access the Flagstaff Pulliam Airport will need to take I-17 south to Kachina Boulevard, and then proceed northbound on I-17 to the John Wesley Powell Boulevard interchange.
- The John Wesley Powell Boulevard overpass will be closed to motor vehicles, pedestrians and bicyclists.
- The speed limit will be reduced to 35 mph.
The closures are needed so crews can place the bridge girders for the new bridge.
As a reminder, the John Wesley Powell Boulevard overpass is closed to pedestrians and bicyclists during construction. Pedestrians and bicyclists looking to cross I-17 can use the Sheep’s Crossing underpass located less than half a mile north of the interchange.
