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Full closure of State Route 89A near Oak Creek Vista (mileposts 387-390) June 3 - 7; Single-lane restriction through end of August

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The Arizona Department of Transportation is advising drivers and area residents and businesses to plan for upcoming daytime full closures and lane restrictions on State Route 89A in Oak Creek Canyon. The restrictions are needed for repair work in Oak Creek Canyon resulting from a rockfall event in March 2023.

Daytime Full Closures

  • Full closures will be from 5 a.m. to 5 p.m. on the following days: Monday, June 3, through Friday, June 7.
  • North- and southbound SR 89A will be closed to all traffic between the switchbacks and Oak Creek Vista (mileposts 387-390).
    • NORTHBOUND DETOUR: Sedona area drivers traveling north to Flagstaff will use State Route 179 to Interstate 17. 
    • SOUTHBOUND DETOUR: Flagstaff area drivers traveling south to Sedona will use I-17 to SR 179.
  • The roadway will reopen to one lane only with alternating north- and southbound travel each day after work hours between 5 p.m. and 5 a.m.

Oak Creek Canyon residences and businesses located north and south of the closure area will remain accessible during the closure.

Single-Lane Restrictions

  • SR 89A will be narrowed to one lane only with alternating north- and southbound travel between the switchbacks and Oak Creek Vista (mileposts 387-390).
  • The 24/7, around-the-clock restrictions will be in place through late August. ` A temporary traffic-signal will be in place to direct traffic through the work zone. ` Drivers should expect delays of up to 15 minutes to get through the work zone.
  • A 10-foot vehicle-width restriction will be in place.
  • Speed limit will be reduced in the work zone.

There will be intermittent full closures of SR 89A between June 10, and late-August when construction activities require it. ADOT will provide advance notice of the full closures.

Please visit for additional project information or contact Community Relations Project Manager Ryan Harding at (602) 550-8397 or [email protected].

Contstuction Notice Detours Map (Full Closures June 3-7; Lane restrictions begin June 10 - SR 89A Oak Creek Canyon
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SR 89A Oak Creek Canyon Improvements

SR 89A Oak Creek Canyon Improvements



Project Cost: $11,111,111

The Arizona Department of Transportation, in conjunction with the Federal Highway Administration, has initiated a project on State Route 89A in Oak Creek Canyon to address the following:

  • Rockfall Mitigation (completed)
  • Drainage and Sediment Control
  • Pumphouse Wash Bridge Rehabilitation (completed)

However, the duration of the project has been extended due to a rock-slide event in March 2023, which now requires additional drainage and sediment control work.

This work will require a 5-day full closure of SR 89A near Oak Creek Vista between mileposts 387 and 390 from June 3-7, 2024. It will also require a 24/7 around-the-clock single-lane restriction that will be in place through late August.

Rockfall Mitigation

The rockfall mitigation work will help reduce the potential of rocks falling onto the roadway at two locations along SR 89A. The first location is north of Sedona city limits at milepost 375, and the second location is located in the switchback section of the roadway at mileposts 388-389.

To ensure the safety of drivers and work crews during rock-removal operations, intermittent closures of some parts of the highway will be necessary. A schedule of traffic restrictions will be provided prior to work beginning.

Drainage and Sediment Control

The work consists of drainage and sediment-control improvements by reducing erosion to preserve deteriorating slopes and reduce downstream pollution. The work between mileposts 388-389 includes installing concrete barrier, pipes, retaining wall, catch basin and gabion mattresses, roadside drainage excavation and other related work.

Pumphouse Wash Bridge Rehabilitation

The Pumphouse Wash Bridge is located on SR 89A at milepost 388. Options to either rehabilitate or replace the existing bridge have been under evaluation by ADOT engineers since 2006. After extensive study, it was determined a  full replacement of the bridge would negatively impact endangered species, stream water quality and the historic nature of the bridge. These factors led to the determination that the bridge will be rehabilitated to extend its service life. Constructed in 1931, the bridge is listed on the National Register of Historic Places.

What to Expect During Construction

With the exception of daytime and overnight closures, SR 89A will remain open to traffic. Traffic restrictions using a combination of temporary traffic signals and/or flagging operation will be in place while the improvements are under construction. The roadway will be narrowed to one lane only through the work zone(s) with alternating north- and southbound travel. 

No full closures will be allowed during weekends (outside of the allowable closure periods for SR 89A) and state holidays.

**Schedules are subject to change based on weather and other unforeseen factors**

Project Area Map

project map

project map

project map

project map

project map



Restrictions and Closures

The roadway will be narrowed to one lane only through the work zone(s) with alternating north- and southbound travel. ADOT is committed to completing the improvements as quickly as possible, while balancing the transportation and needs of local and nearby communities.

ADOT will post information a minimum of seven days in advance of full closures and will post information about traffic restrictions as they become available.

To receive traffic alerts and other updates by email, please subscribe here.

You can also learn of real-time, project-related restrictions and closures by visiting or call 511, except while driving.

Schedules are subject to change because of weather or other unforeseen factors. Remember to slow down and use caution around construction workers and equipment.


Initially, the three improvements were going to be completed at different times by two different contractors, but all the work will now be completed by one contractor.

This helps address increasing construction costs, the challenges of working on a narrow-and-winding canyon road and the complexity of the work. It will also help better coordinate traffic impacts required to complete the work.

Stay Informed


By email: Subscribe to receive traffic alerts and project updates directly to your email.

Phone: Jason Stephens, ADOT Community Relations Project Manager: 480.751.7104

Teléfono: Línea de Información del Proyecto ADOT: 855.712.8530

Online: Submit a question or comment through the ADOT website by visiting then select “Projects” from the dropdown menu.