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Lane closures planned on SR 187 and SR 87 on the Gila River Indian Community May 26-27

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The Arizona Department of Transportation advises drivers to plan for lane closures on State Route 187 and SR 87 (milepost 192), within the Gila River Indian Community near Sacaton. Closures are scheduled Tuesday, May 26, and Wednesday, May 27, as part of the pavement improvement project. 

Motorists can expect the following restrictions from 6 a.m. to 6 p.m.:

  • Southbound SR 187 will be closed at SR 87 (milepost 192) Tuesday, May 26. 
  • Northbound SR 187 will be closed at Casa Grande Road Wednesday, May 27. 
  • North- and southbound SR 87 turn lanes to southbound SR 187 will be closed Wednesday, May 27.
  • An 11-foot vehicle width restriction will be in place.

Detour: Motorists are encouraged to follow the detour signs to SR 387 during the above lane closures.

Ongoing lane restrictions

North- and southbound lane restrictions on SR 187 between mileposts 186 and 192 will continue daily from 6 a.m. to 6 p.m. Monday through Friday through July.

ADOT advises drivers to plan ahead, allow extra time and use the designated detour route while closures are in place. Schedules are subject to change based on weather and other unforeseen factors.

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State Route 187: SR 387 to SR 87 Improvement Project

State Route 187: SR 387 to SR 87 Improvement Project

Contents

  1. Overview
  2. Project Fact Sheet
  3. Project elements
  4. Project Area Map
  5. Project Schedule
  6. What to Expect
  7. Project Photos
  8. Project Videos
  9. Stay Informed

Overview

The Arizona Department of Transportation began a pavement preservation project on State Route 187 on the Gila River Indian Community in October 2025. These improvements include pavement preservation, shoulder widening and adding new turn lanes.  These improvements will reduce congestion and improve mobility. 

Project Fact Sheet

Spanish PDF

Project elements

  • Adding a new right-turn lane on SR 187 approaching SR 87 
  • Adding a new right-turn lane on SR 87 approaching SR 187
  • Adding a new left-turn lane on SR 187 approaching Casa Grande Road
  • Widening SR 187 to accommodate 8-ft shoulders on both sides
  • Removing and replacing the asphalt
  • Constructing drainage improvements
  • Replacing bridge railing
  • Relocating traffic signal equipment at the SR 187/SR 87 intersection

Project Area Map

Map State Route 187: SR 387 to SR 87 Improvement Project

 

Project Schedule

Construction began in October 2025 and is projected to be completed in fall 2026. ADOT will provide advance notice of restrictions and closures once construction starts. Schedules are subject to change due to weather and other unforeseen circumstances.

What to Expect

  • Traffic control devices will guide motorists through the construction area. 
  • Construction work is tentatively scheduled from 6 a.m. to 6 p.m. Monday through Friday. 
  • Expect temporary delays as traffic is redirected through a single travel lane. 
  • ADOT will provide advance notice of restrictions and closures to email subscribers. 

Project Photos

State Route 187: SR 387 to SR 87 Improvement Project

SR187 Paving Project

Project Videos

Stay Informed

...
  • By email: Subscribe to receive traffic alerts and project updates directly to your email.
  • By phone: Call the ADOT Project Information Line at 855.712.8530
  • Online: Submit a question or comment to Dulce Maria Rojo at [email protected].

For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at www.az511.gov, follow ADOT on Twitter @ArizonaDOT or call 511, except while driving.

Contents

  1. Overview
  2. Project Fact Sheet
  3. Project elements
  4. Project Area Map
  5. Project Schedule
  6. What to Expect
  7. Project Photos
  8. Project Videos
  9. Stay Informed