Overview

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

Project Fact Sheet

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

Project Schedule

The project is anticipated to begin summer 2025 and is projected to be completed in spring 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. 

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.

About This Project

The Arizona Department of Transportation is making improvements to Interstate 10 in Tucson. The Interstate 10: Kino to Country Club project is the first project to come out of the Interstate 10 and State Route 210 Transportation Design Concept Report (DCR) that was completed in 2020.

The I-10: Kino to Country Club project was programmed into the 2024-2028 Five-Year Transportation Facilities Construction Program as a Design/Build in FY 25. The project is currently in the design stage with construction scheduled to begin in summer 2025.

The State Transportation Board has awarded the design-build project to Sundt-Jacobs.

View the I-10/210 Transportation DCR and Final Environmental Assessment (EA) that was completed in 2020.

Project Elements

The project will include:

• Re-constructing I-10 to three general purpose lanes in each direction between Kino Parkway and Alvernon Way and four general purpose lanes in each direction west of Kino Parkway to milepost 262 (east of Park Avenue)
• Re-constructing the traffic interchange at I-10 and Kino Parkway to improve existing traffic and safety issues
• Constructing a new traffic interchange at I-10 and Country Club Road
• Removing the traffic interchange at Palo Verde Road and I-10
• Constructing a new I-10 westbound entrance ramp from Alvernon Way
• Constructing an I-10 undercrossing to connect the North and South Kino Sports Complex

Project Area

Purpose and Need

• Address traffic congestion
• Improve safety
• Increase traffic flow
• Improve the traffic interchanges at Kino Parkway and at Country Club Road

Timeline

Project Photos

Project Roll Plots Images

I-10: Kino to Country Club Project Roll Plot Photo

I-10: Kino Parkway Roll Plot Photo

I-10: Country Club Roll Plot Photo

Fact Sheet

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: Have a question or comment regarding the project? Email the project team at [email protected].

For real-time highway conditions statewide, follow ADOT on Twitter  (@ArizonaDOT), visit az511.gov or call 511, except while driving

Overview

The Arizona Department of Transportation is completing a pavement rehabilitation project located on State Route 90 between the border patrol station and Moson Road (mileposts 304-325) in Cochise County.

Project Area Map

Project Elements

• Replacing existing asphalt with new asphalt 
• Replacing guard rails
• Installing new sidewalks, sidewalk ramps, and signage
• Completing new pavement markings
• Installing in ground-in rumble strips on shoulders and the centerline as necessary

Project Schedule

Construction started in April 2024 and is estimated to be completed in summer 2025. Crews began work by removing and replacing guardrails in May 2024. Following guardrail work, crews began curb, sidewalk, and gutter work. Pavement preservation work is tentatively scheduled to start early 2025.

Work will be completed Monday through Thursday from 6 a.m. to 6 p.m. Schedules are subject to change due to weather and other unforeseen circumstances.

What to Expect

One lane will be open to traffic in each direction for the majority of the project and drivers should anticipate delays. Please allow for extra time when traveling through the area.

ADOT will provide advance notice of restrictions and closures to email subscribers and on the project traffic alert web page.

Stay Informed

Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email.  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.

This project is complete

Overview

The Arizona Department of Transportation completed a project to repair guardrail on State Route 386 at Kitt Peak located on the Tohono O’odham Nation in April 2025.

Project Elements

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

Project Area

What to Expect

• Traffic control devices are in place to move motorists through the construction area. During non-working hours, both lanes of traffic are 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

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

Project Schedule

The project was 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.

Overview

This pavement improvement project located in Pima County 40 miles southeast of Why, Arizona within the Tohono O’odham Nation Indian Reservation was completed May 2024.

Key Elements of the Project:

• Pavement Rehabilitation of the existing roadway between mileposts 90-105
• Milled the existing pavement and replaced with asphaltic concrete, followed by an application of chip seal
• Replaced guardrail, and installing new embankment curb
• Drainage Improvements
• Seeding
• Pavement markings
• Other related work

Timeline

The project began in April 2023 and was completed in May 2024.

Overview

The Arizona Department of Transportation is performing a bridge repair project on State Route 80 in St. David, spanning the San Pedro River. The work consists of removing the existing San Pedro River Bridge and replacing it with a continuous three span welded steel plate girder bridge. Additional work includes replacing guardrail and pavement markings.

What to expect during construction

• Motorists should prepare for delays during peak travel times.
• One lane will remain open at all times.
• Traffic will be shifted during construction to allow crews to work on one side of the bridge at a time. 
• Temporary traffic signals at bridge access points will be used to regulate traffic in each direction.
• A 10-foot vehicle width restriction will be in place.
• Work is scheduled to occur from 5 a.m. to 3 p.m. Monday - Friday

Project Timeline

Work on this project is expected to be completed by spring  2025.

Schedule subject to change based on weather or other unforeseen factors.

Detours

For oversized loads above the 10-foot vehicle width restriction, please use alternate routes. Consider using  SR 90 to SR 82.

Stay Informed

ADOT welcomes your questions or comments. Please feel free to contact us in any of the following ways:

• Online: Submit a question or comment  please email [email protected] 
• By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
• By mail: Write to ADOT Community Relations, 1221 S. Second Ave. Tucson, AZ 85713. 
•  For information about current project-related restrictions and closures, please visit az511.gov or call 511, except while driving.

ADOT will provide more information about project schedules and potential traffic impacts as information becomes available. Stay informed about traffic restrictions before they occur by signing up to receive timely traffic alerts by email.

This project is complete

Overview

The Arizona Department of Transportation, in cooperation with the town of Florence and Maricopa Association of Governments (MAG), has completed a project to reconstruct the intersection of State Route 287 and SR 79B with dual roundabouts.

Key elements of the project included:

• Constructing a multiple-lane roundabout at SR 287/SR 79B
• Constructing a single-lane roundabout at SR 79B/Florence Heights Drive
• Realigning the west end of Florence Heights Drive
• Reconstructing local streets and driveways within the project limits
• Constructing new sidewalks and multi-use pathways to improve accessibility 
• Installing new curb and gutter and storm water systems including retention basins within the project limits
• Replacing and improving roadway lighting
• Adding aesthetics include decomposed granite, decorative median paving and town entry monument

Work began January 2024 and the project was completed August 2024.

Aerial of traffic interchange before

Aerial of traffic interchange after

How to Drive the new Dual Roundabout in Florence

Fact Sheet

English | Spanish

View Detailed Roundabout Layout

Learn More About Roundabouts

Stay Informed

• By email: Subscribe to receive project updates and traffic alerts.
• By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
• Online: Submit a question or comment through the ADOT website. Visit azdot.gov/Contact and then select Projects from the dropdown menu.

Overview

The Arizona Department of Transportation completed a pavement life extension project on State Route 287 between Coolidge and Florence starting in spring 2022.

The project extend from the intersection of SR 87 and SR 287 in Coolidge to just west of the intersection of SR 287 and SR 79B in Florence.

Key elements of the project included removing and replacing the riding surface on the travel lanes. The project was completed July 2022.

Stay Informed

Schedules are subject to change based on weather and other unforeseen factors.  Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530/ or submit a question or comment by email. 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.

Overview

The Arizona Department of Transportation completed a project to replace the State Route 79 Gila River bridge in Florence. Construction began in February 2022 and the project was completed June 2023.

Key elements of the new bridge included:

• A single lane in each direction with 8 foot shoulders.
• A protected pedestrian walkway on the west side of the bridge.

Construction sequencing

The new bridge was constructed using an Accelerated Bridge Construction (ABC) technique to minimize traffic impacts on the heavily-used SR 79 corridor. An animation of the sequencing is available. 

Under this approach, the new bridge piers were built while the existing bridge remained in use. The upper portion of the new bridge was built in two halves, one on each side of the existing bridge. 

Stay Informed

Schedules are subject to change based on weather and other unforeseen factors. Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email.  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.

Overview

The Arizona Department of Transportation completed a project to improve the area of State Route 77: Junction I-10 to Calle Concordia. The project was a combination of three projects spanning the area between the junction of Interstate 10 and Miracle Mile to River Road on SR 77 (Oracle Road), and from River Road to Calle Concordia Road on SR 77 (Oracle Road) in the town of Oro Valley. Construction began early 2021 and was completed summer 2024. The project will included:

• Pavement rehabilitation from I-10 and Miracle Mile to Calle Concordia.
• Lighting improvements, including new LED street lights between River and Ina Roads.
• Roadway drainage improvement.
• Utilities relocation.
• Signal and intersection improvement between River and Ina Roads.
• Reconstructing driveways, sidewalks and sidewalk ramps between I-10/Miracle Mile and River Road to meet ADA compliance
• Constructing new ADA approved ramps, sidewalks, driveways between River and Magee Roads.
• Adding new dual left turn lanes to the intersection of Magee and Oracle Roads.
• Installing a storm drain system from River to Orange Grove Roads.
• Reconstructing and repaving the roadway from River Road to Calle Concordia.

Project Fact Sheet

Pre-recorded video: Oro Valley Chamber of Commerce Meeting, March 4, 2021

Traffic Alerts

Drivers should expect possible delays at times throughout the project and should consider alternate routes.

Schedules are subject to change based on weather and other unforeseen factors. Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email. For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at az511.gov, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.