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Plan for daytime alternating lane restrictions on SR 386 (Kitt Peak Highway) Nov. 4 through Jan. 30

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Plan for daytime alternating lane restrictions on SR 386 (Kitt Peak Highway) Nov. 4 through Jan. 30

No scheduled lane restrictions or closures during the holidays

heavy equipment on project site

The Arizona Department of Transportation advises drivers to plan for daytime alternating lane restrictions on north- and southbound State Route 386 (Kitt Peak Highway) on the Tohono O’odham Nation starting Nov. 4 for guardrail replacement work.

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

  • North- and southbound SR 386 intermittent lane closures between mileposts 11 and 3 from Monday, Nov. 4, through Thursday, Jan. 30.
  • 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 the Veterans, Thanksgiving, Christmas, New Year or Martin Luther King holidays. 

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

This work is part of the Kitt Peak Guardrail Reconstruction project. For more information visit the project website at azdot.gov/kitt-peakobservatory-guardrail.

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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 project photokitt peak guardrail project photo workerkitt peak guardrail project photo worker
kitt peak guardrail project photo workerkitt peak guardrail project photo worker

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.