Starting the week of June 3, drivers who typically use State Route 89A at the switchbacks in Oak Creek Canyon north of Sedona will need to plan alternative routes due to a significant rockfall mitigation safety project initiated by the Arizona Department of Transportation (ADOT).
The rockfall mitigation project aims to address and prevent hazardous rockslides, ensuring the safety of motorists traveling through this scenic but geologically unstable area. The initiative follows a rockslide incident in March 2023 that highlighted the urgent need for intervention to stabilize the cliff face above SR 89A.
Scheduled Closures and Restrictions
To facilitate the necessary work, ADOT has scheduled closures and lane restrictions along SR 89A over the coming months. From June 3 to June 7, SR 89A will be closed in both directions between Pine Flat Campground and the Oak Creek Vista scenic overlook (mileposts 387-390) from 5 a.m. to 5 p.m. Monday through Friday. During these hours, crews will work intensively to secure the cliff face and reduce the risk of future rockfalls.
Outside these daytime working hours, the highway will be reduced to one lane with temporary traffic signals managing the flow of vehicles in alternating directions. This setup is designed to minimize disruption while still allowing essential work to proceed. However, drivers should anticipate delays and allow extra time for their trips when the road is limited to a single lane.
Recommended Detour Routes
For those affected by these closures, ADOT recommends the following detour routes to ensure smooth travel:
- For drivers in the Flagstaff area: Take southbound I-17 to northbound SR 179 to reach Sedona and Oak Creek Canyon.
- For northbound traffic in the Sedona area: Use southbound SR 179 to northbound I-17 to reach Flagstaff.
These detour routes are designed to accommodate the increased traffic flow and provide a reliable alternative to SR 89A during the closure periods.
The rockfall mitigation project is scheduled to last until late August, with ongoing assessments to determine the need for additional closures. ADOT will provide advance notice of any further full closures, ensuring that the public is well-informed and can plan accordingly.
A 10-foot vehicle-width restriction will be in place within the work zone to ensure the safety of both the workers and the traveling public. ADOT and its contractor are coordinating closely with local and regional safety agencies to maintain emergency vehicle access and to be prepared for any events, such as wildfires, that may require immediate response.
Impact on Local Community and Tourism
The closures and restrictions on SR 89A are expected to impact local residents, tourists, and businesses that rely on this route for daily travel and commerce. Oak Creek Canyon and Sedona are popular destinations known for their natural beauty and outdoor recreational opportunities. ADOT is committed to minimizing disruptions and ensuring that the area remains accessible through clearly marked detours and timely updates.
Local businesses, particularly those in the tourism sector, are encouraged to inform their customers about the closures and detours. By planning ahead and utilizing alternative routes, visitors can still enjoy the attractions and activities that the Sedona and Oak Creek Canyon areas have to offer.
For real-time highway conditions and updates, travelers can visit ADOT’s Arizona Traveler Information site at az511.gov, use the az511 app, or call 511. These resources provide comprehensive information on current road conditions, traffic updates, and any changes to the planned closures and restrictions.
By staying informed and planning ahead, drivers can navigate the area safely and efficiently, ensuring that the essential rockfall mitigation work can proceed without unnecessary complications.
