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UPDATE: Plan for continue daytime alternating lane restrictions on SR 386 (Kitt Peak Highway) through Feb. 28

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UPDATE: Plan for continue daytime alternating lane restrictions on SR 386 (Kitt Peak Highway) through Feb. 28

This alert updates the Nov. 1 restriction end date from Jan. 31 to Feb.28

heavy equipment on project site

The Arizona Department of Transportation advises drivers to plan for continues daytime alternating lane restrictions on north- and southbound State Route 386 (Kitt Peak Highway) on the Tohono O’odham Nation through Feb. 28 for pavement work.

The following lane restrictions are scheduled weekdays from 6 a.m. to 6 p.m.:  

  • North- and southbound SR 386 intermittent lane restrictions are scheduled between mileposts 11 and 3 through Friday, Feb. 28.
  • Flagging operations will be in place to direct traffic. Note: Only one direction will be impacted at a time. 
  • A 12-foot vehicle width restriction will be in place. 
  • The speed limit will be reduced to 25 mph. 
  • No work is scheduled during President’s Day. 

Drivers should plan for delays, obey posted speed limits and traffic control devices and use caution around construction personnel.

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SR 386: Kitt Peak Observatory Guardrail Reconstruction Project

SR 386: Kitt Peak Observatory Guardrail Reconstruction Project

Contents

Overview

The Arizona Department of Transportation has initiated a project to repair guardrail and make other improvements on State Route 386 at the Kitt Peak Observatory on the Tohono O’odham Nation to improve roadway safety.

Project Elements

  • Replacing guardrail and guardrail end terminals
  • Constructing drainage improvement
  • Performing rock fall mitigation
  • Other miscellaneous improvements

Project Area

Map - Kitt Peak Observatory guardrail repair project

 

What to Expect

  • Traffic control devices will be in place to move motorists through the construction area. During non-working hours, both lanes of traffic will be open.
  • Construction is scheduled from 6 a.m. to 6 p.m. Monday through Thursday. 
  • ADOT will provide advance notice of restrictions and closures to email subscribers. 

Project Photos

Kitt Peak Guardrail Reconstruction Project.

Explore the full photo album on Flickr - Kitt Peak Guardrail Reconstruction Project Photos

Project Schedule

The project began construction in September 2024 and is expected to be completed in April 2025.

Stay Informed

...
  • By email: Subscribe to receive project updates and traffic alerts.
  • By phone: Call the ADOT Project Information Line at 855.712.8530.
  • Online: Submit a question or comment via email to Dulce Maria Rojo at  [email protected]
  • For real-time highway conditions statewide, follow ADOT on Twitter  (@ArizonaDOT), visit az511.gov or call 511, except while driving.