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Drivers who use the I-17 interchange at Happy Valley Road should plan ahead for the next phase of interchange construction beginning July 17, which will require two-month ramp closures and the removal of the existing roundabouts to construct new interchange ramps. ADOT advises those who live, work and travel in this area to plan for changes in the current traffic control and ramp closures that will require motorists to use alternate routes.
July 17 through September 2020
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The northbound I-17 on-ramp and the southbound I-17 off-ramp at Happy Valley Road will be closed. The southbound frontage road will be closed between Jomax and Happy Valley roads, and the northbound frontage road will be closed between Happy Valley Road and Agave. DETOUR: Traffic can use the Jomax Road interchange for I-17 access via 19th Avenue.
- Temporary signals will be in place at the interchange to control all traffic movements. The existing roundabouts on Happy Valley Road at the interchange will be removed prior to installing the temporary traffic signals.
Weekend Closure July 17-20 of Happy Valley Road and I-17 Ramps at Happy Valley Road
- Beginning at 9 p.m. Friday, July 17, until 5 a.m. Monday, July 20, Happy Valley Road between 23rd and 29th avenues, AND the I-17 ramps at Happy Valley Road, will be closed to remove the existing roundabouts, pave temporary detour routes at the interchange and install new traffic control. DETOURS: Traffic can use the interchanges at Pinnacle Peak Road and Jomax Road for I-17 access, and Pinnacle Peak Road for east/west travel.
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