RTA Roadway Corridors

The 20-year RTA plan includes 35 roadway corridor improvement projects across the greater Tucson region. The corridor projects include roadway widening, sidewalk, bike lane, intersection, bus pullout, landscape, drainage and public art improvements.

Corridors specified in the RTA plan

Of the 35 corridor projects, 17 have been completed and 11 are partially complete, as of May 2021. Many of the projects are built in phases as RTA sales tax collections and other regional funds become available.

RTA Roadway Corridors Timeline

Construction of named roadway corridor projects, or the first phase of the projects, may start anytime within the designated five-year period, as approved by the voters. The RTA plan has four, five-year periods shown in the 20-year timeline. The RTA is currently in the fourth period, FY 2022 through FY 2026.

The lead jurisdiction designs the project and schedules the start of construction. The launch of construction of the first phase of each corridor meets the RTA plan’s designated schedule, and other phases of the corridor may be started as scheduled by the lead agency.

Roadway Corridor Projects

1st Avenue, Orange Grove Road to Ina Road (RTA Ballot #13)

This project will occur in the fourth period of the RTA plan between fiscal years 2022 and 2026. Plans for First Avenue between Orange Grove Road and Ina Road call for widening the roadway to four lanes and adding bike lanes and sidewalks.

1st Avenue, River Road to Grant Road (RTA Ballot #14)

Voters approved this widening project to include a six-lane roadway with bike lanes and sidewalks. This is a third-period project, scheduled to begin between fiscal years 2017 and 2021.

22nd Street, Camino Seco to Houghton Road (RTA Ballot #30)

22nd Street will be widened to four lanes with bicycle lanes and sidewalks. This is a fourth-period project to begin between fiscal years 2022 and 2026.

22nd Street, I-10 to Tucson Boulevard/Barraza Aviation Parkway (RTA Ballot #19)

A new intersection at Kino Parkway and 22nd Street was completed in fall of 2015. Future improvements will widen 22nd Street to three lanes in each direction. Additional project elements include access to nearby businesses and neighborhoods, drainage, street lighting, sidewalks, landscaping, bicycle and pedestrian improvements, transit facilities and public artwork.

Phase 2 is the section of roadway from Kino Parkway to Tucson Boulevard. Design of the new bridge over the Union Pacific Railroad tracks will require coordination with Union Pacific Railroad. Utility coordination activities have been initiated. A construction time frame is still to be determined.

Phase 3 from Kino Parkway to Interstate 10 is expected to advance in the fourth period (FY 2022-2026) of the RTA plan.

Project website: 22nd Street, Interstate 10 to Kino Parkway
Project website: 22nd Street, Kino Parkway to Tucson Boulevard

Barraza/Aviation Parkway, Palo Verde Boulevard to I-10 (RTA Ballot #20)

This is a design and right-of-way project to fund the future connection of the parkway to Interstate 10. Design and right-of-way acquisition will take place in the 4th period of the RTA plan.

Broadway Boulevard, Camino Seco to Houghton Road (RTA Ballot #29)

Improvements to this two-mile section of roadway were completed in March 2020. Drivers, pedestrians and cyclists will enjoy a safer and much improved Broadway Boulevard. The roadway is now four lanes with a raised median, drainage features (so rainwater goes under the road), bike lanes, sidewalks and public art.

Project website: Broadway East Info

Broadway Boulevard, Euclid Avenue to Country Club Road (RTA Ballot #17)

Construction on Broadway Boulevard, from Euclid Avenue to Country Club, began in February 2020. When completed, this section of Broadway will have six travel lanes, landscaped medians, sidewalks, 16 bus pullouts (full or partial), signalized pedestrian crossings and buffered bike lanes.

Fact Sheet: Broadway Boulevard, Euclid Avenue to Country Club Road, Project
Project Website: Broadway Boulevard, Euclid Avenue to Country Club Road

Downtown Links/I-10 to Broadway Boulevard (RTA Ballot #16)

Downtown Links will be a 1.3-mile long, multimodal corridor connecting Barraza-Aviation Parkway to Interstate 10. It will be a 30 mph, four-lane roadway with bike lanes, sidewalks and a separate multiuse path. Improvements include construction of a new 6th Street alignment, railroad underpass and 9th Avenue deck plaza. Major drainage improvements will protect a large portion of downtown and surrounding neighborhoods from a 100-year flood plain. This project will eliminate one of the most hazardous railroad crossings in the state and end long train-related delays on St. Mary’s Road.

Construction began in the summer of 2020. Downtown Links Constructors is under contract with the City of Tucson to complete the project, which is expected to take about 30 months.

Drainage improvements and reconstruction of St. Mary’s Road, from I-10 to Church Avenue, occurred in earlier phases of the project.

Project website: Downtown Links

Grant Road, Oracle Road to Swan Road (RTA Ballot #18)

The improvements from Oracle Road to Swan Road include additional travel lanes, new and wider sidewalks, more signalized crosswalks, improved bicycle lanes and enhanced landscaping. Safety features include bus pullouts, drainage improvements, a median and managed access to businesses. Grant Road will use indirect left turns at major intersections to improve safety and traffic flow.

Phase 1, the Grant Road and Oracle Road indirect left intersection, was completed in 2013. Phase 2, from Stone Avenue to Park Avenue was completed in fall 2018.

The design and right-of-way acquisitions for Phases 3 and 4, from Alvernon Way to Swan Road, are underway. Utility coordination activities have been initiated. Construction is anticipated to begin in 2021.

Construction of Phases 5 and 6, from Campbell Road to Country Club Road, will occur late in the fourth period of the RTA plan.

Project website: Grant Road Information

Grant Road UPRR Underpass (RTA Ballot #15)

This project is in the design phase. Improvements will include providing three lanes in each direction on Grant Road under the Union Pacific Railroad, along with sidewalks and bike lanes. It will significantly ease traffic congestion at the Grant Road underpass at Interstate 10. A construction start date has not been determined.

Harrison Road, Golf Links Road to Irvington Road (RTA Ballot #31)

A new two-lane bridge will be built over the Pantano Wash, along with drainage improvements to provide all-weather access to commuters. This fourth-period project will begin between fiscal years 2022 and 2026.

Houghton Road, I-10 to Tanque Verde Road (RTA Ballot #32)

The Houghton Road corridor spans 13 miles from Tanque Verde Road to Interstate 10. Improvements on Houghton Road are being made in several phases over the 20-year life of the RTA plan. The bridge project over the Union Pacific Railroad tracks was completed in late 2018.

Earlier phases that are complete include the Old Vail Road/Mary Ann Cleveland Way intersection, Irvington Road to Valencia Road, and Broadway Boulevard to 22nd Street.

The section from the Union Pacific railroad tracks to I-10 was completed in fall 2019.

Improvements to the stretch of roadway from Valencia Road to Mary Ann Cleveland Way began in fall 2020. This phase is anticipated to take about 15 months to complete.

The three miles of roadway from 22nd Street to Irvington Road is in the design phase. Construction is anticipated in 2021.

Design and construction on the Tanque Verde Road to Speedway Boulevard phase are not yet scheduled.

Improvements along the entire corridor include widening to a 4- and 6-lane desert parkway, with new bridges, bike lanes, drainage features and sidewalks.

Project website: Houghton Road Info

Ina Road Overpass (RTA Ballot #6) – Completed

This highly anticipated project was completed in spring 2019. The new Ina Road goes over the railroad tracks and freeway making for a smoother, more efficient and safer ride for drivers. In addition to the advantages for motorists, pedestrians and cyclists will benefit from the improvements which include new sidewalks and bike lanes. Trail users now go under Ina Road to access The Loop regional bike path. The frontage roads have been reconstructed, as well as the freeway ramps to ease the flow of traffic onto and off Interstate 10.

Non-RTA funded improvements on Ina Road west of the freeway include two new bridges over the Santa Cruz River. Construction occurred during the same period as the Ina Road Overpass work.

I-19 Frontage Road, Canoa Ranch Road to Continental Road (RTA Ballot #35) – Completed

This early RTA project provided a two-way frontage road with paved shoulders linking Continental Road and Canoa Ranch Road. It runs along the east side of I-19. It provides important access for residents and businesses in the area.

Irvington Road, Santa Cruz River east of I-19 (RTA Ballot #22)

This is an early project in the 4th period of the RTA plan. Improvements include intersection, access management, new bike lanes and sidewalks on Irvington Road, from the Santa Cruz River to east of Interstate 19. This project will be constructed in conjunction with the Arizona Department of Transportation’s reconstruction of the Irvington Road/I-19 interchange.

Kolb Road, Connection to Sabino Canyon Road (RTA Ballot #26) – Completed

The eastern regional corridor is designed to ease congestion at the Grant/Kolb roads intersection with Tanque Verde Road. This project extends Sabino Canyon Road south of Tanque Verde and connects to Kolb Road.  Eastside commuters now have a new 4-lane roadway with bike paths, sidewalks, two bridges, drainage improvements, landscaping, safety features and public art. The project was completed in January 2017.

Project website: Kolb/Sabino Canyon Road

La Cañada Drive, Calle Concordia to River Road (RTA Ballot #11) – Completed

This stretch of roadway was constructed in two phases, giving drivers, bicyclists and pedestrians six miles of new pavement, bike lanes, sidewalks and a multi-use path. It connected existing four-lane roadways north and south of the project and eliminated a major gap in the region’s arterial road network. The project required reconstruction of the La Cañada Drive/Orange Grove Road intersection and installation of drainage facilities along the corridor to prevent roadway flooding during heavy rains.

Phase 1 (Calle Concordia to Ina Road) was completed in September 2011.

Phase 2 (Ina Road to River Road) was completed in spring 2015.

Project website: La Canada, River Road to Ina Road

La Cholla Boulevard, River Road to Ruthrauff Road (RTA Ballot #10) – Completed

This project was completed in September 2011. The six-lane roadway has paved shoulders for bicyclists, along with sidewalks for pedestrians. Intersection improvements at Curtis Road and Ruthrauff Road keep traffic moving. All commuters benefit from new storm drains and a six-lane bridge over the Rillito River. This roadway provides an important alternative to Interstate 10 for local traffic during periods of construction or when there is restricted access on I-10.

Project website: La Cholla Boulevard, River Road to Ruthrauff Road

La Cholla Boulevard, Tangerine Road to Magee Road (RTA Ballot #4)

La Cholla Boulevard is a major north-south corridor in the region. La Cholla Boulevard improvements, from Magee Road to Tangerine Road, are being constructed in two phases.

Phase 1 (Magee Road to Overton Road) was completed in spring of 2014. The improvements included a much-needed bridge over the Cañada del Oro Wash.

Phase 2 from Overton Road to Tangerine Road was completed in fall 2020. The corridor now has two through lanes of traffic in each direction, bike lanes, a multiuse path, wildlife corridors and drainage structures that will provide all-weather access for commuters. The north end of the project ties into the Tangerine Road improvements that were completed in September 2018.

Project website: La Cholla Improvements

Magee Road/Cortaro Farms Road, La Cañada Drive to Thornydale Road (RTA Ballot #7) –Completed

This corridor is a four-lane divided roadway with bike lanes and sidewalks. It provides continuous access on Magee Road and eliminates the jog at La Cholla Blvd. This project includes a new bridge over the Cañada del Oro Wash, flood control channelization on the Nanini Wash and a pedestrian signal at Legacy School. This project was completed in late 2015.

Project website: Cortaro Farms Road/Magee Road, Thornydale Road to Oracle Road

Magee Road, Oracle Road to La Cañada Drive (RTA Ballot #12) – Completed

This stretch of roadway was completed in fall 2015. Improvements provide important east-west access from Oracle Road to Thornydale Road. Crews widened the roadway to four lanes and added a center median. The project includes bike lanes, sidewalks, improved drainage and landscaping.

Ruthrauff Road at I-10 and Railroad Overpass (RTA Ballot #9)

Construction on the traffic interchange began in early 2020. This project will lower Interstate 10 and raise Ruthrauff Road over Davis Avenue/Highway Drive, the Union Pacific Railroad and I-10. There will be two lanes in each direction. Frontage roads and ramps will be reconstructed to meet the new profiles on I-10 and Ruthrauff Road.

Project website: Ruthrauff Road at I-10 and Railroad Overpass

Sahuarita Road, I-19 to Country Club Road (RTA Ballot #34) – Completed

This project, consisting of three phases, included nearly four miles of Sahuarita Road, from I-19 to Country Club Road. Crews widened Sahuarita Road to a 4-lane, divided roadway with medians, a pedestrian underpass, paved shoulders, sidewalks, drainage improvements and landscaping. Final construction was completed in 2017.

Silverbell Road, Ina Road to Grant Road (RTA Ballot #5)

The first phase of the Silverbell Road improvement project from Grant Road north to Goret Road was completed in February 2017. It is a four-lane divided roadway with a raised median, bike lanes, sidewalks and a multi-use path. Native landscape, wildlife linkages and public art are among other improvements.

The next phase is reconstruction of Silverbell Road from Goret Road to El Camino del Cerro, anticipated to begin in 2022. The amenities will be similar to Phase 1. Design activities are completed. Significant archaeological resources exist along this section of Silverbell Road. Extensive recovery activities will occur before construction begins. Pima County and the City of Tucson will be working together on this very important aspect of the Silverbell Corridor. A final design open house will be held in advance of construction.

Construction on Phase 3 (El Camino del Cerro to Ina Road) is scheduled for the fourth period of the RTA plan. (FY 2022-2026)

Speedway Boulevard, Camino Seco to Houghton Road (RTA Ballot #28) – Completed

This widening improvement provided two through lanes in each direction with a 20-foot wide landscaped median. There are concrete curbs, 6-foot wide sidewalks, bike lanes and public art along the improved section of roadway. Drainage improvements include storm drains, catch basins, and reinforced concrete box culvert crossings to control flooding and provide all-weather crossing capability. Construction was completed in July 2012.

Project website: Speedway Boulevard: Camino Seco to Houghton

Sunset Road, Silverbell Road to River Road (RTA Ballot #8)

Phase 1 (Silverbell Road to Interstate 10) was completed in February 2017.

Sunset Road, from Silverbell Road to I-10, is a two-lane road with a continuous center turn lane and a 720-foot long bridge over the Santa Cruz River. The bridge has a shared-use path along the southern edge and a pedestrian sidewalk along its northern edge. The project restored Sunset Road access over the Santa Cruz River for the first time since the 1983 floods wiped out the old Sunset Bridge. The project cost was $8.3 million, 30 percent under the original estimate.

Phase 2, from I-10 to River Road, is scheduled for construction after 2021.

Project website: Sunset Road, Silverbell to I-10

Tangerine Road, I-10 to La Cañada Drive (RTA Ballot #1)

Phase 1 (La Cañada Drive to Dove Mountain Boulevard) was completed in September 2018.

The project improves safety and access in the region with a 4-lane roadway, landscaped medians, bike lanes, sidewalks, turn lanes, wildlife crossings and drainage improvements that will allow for all-weather access.

The Dove Mountain Boulevard to I-10 section will have amenities similar to Phase 1.

Construction of Phase 2 (Dove Mountain Boulevard to Interstate 10) is scheduled to begin in the fourth period of RTA plan.

Project website: Tangerine Road Corridor Project

Tanque Verde Road/Catalina Highway to Houghton Road (RTA Ballot #27) – Completed

The project included widening more than a mile and a half of the existing two-lane Tanque Verde Road to four travel lanes with a curbed median, paved shoulder, outside curbs, storm drains, landscaping and pedestrian facilities. Construction was completed in 2011.

Project website: Tanque Verde, Catalina to Houghton

Twin Peaks Road, Silverbell Road to I-10 (RTA Ballot #3) – Completed

This section of Twin Peaks Road connects Silverbell Road to Interstate 10, allowing for easy access to and from Continental Ranch, nearby neighborhoods, business centers and developments west of the Tucson Mountains. The project was completed in November 2010. Reconstruction included a new traffic interchange on I-10 with a railway overpass, a new bridge over the Santa Cruz River, four travel lanes with a landscaped median, bike lanes, sidewalks and drainage culverts.

Twin Peaks Road, Tangerine Road to Linda Vista Boulevard (RTA Ballot #2) – Completed

Twin Peaks Road connects Tangerine Road to I-10, providing regional access to northwest Tucson and the Towns of Marana and Oro Valley. The roadway is one of two new corridors in the RTA plan. Kolb Road Connection is the other. This section of Twin Peaks Road was completed in November 2010. It features a 4-lane divided roadway that includes sidewalks, bike lanes, a multi-use path, wildlife crossings, drainage structures and bus pullouts for future transit service. The new interchange and road led to the development of a major commerce center near Twin Peaks Road and Interstate 10. Tucson Premium Outlets opened in October 2015. Other developments include a hotel and health care center.

Twin Peaks Road was originally named Camino de Mañana. The Marana Town Council renamed the roadway.

Valencia Road, Ajo Highway to Mark Road (Ballot #21) – Completed

West Valencia Road is an important east-west corridor on the southwest side of the Tucson metropolitan area. Work on the section of roadway from Wade Road to Ajo Highway finished in the summer of 2020, bringing the entire project to completion. Improvements include widening to a four-lane desert parkway with drainage structures, bike lanes and sidewalks, increasing safety, reducing congestion and increasing mobility for residents, businesses and visitors.

This project was constructed in two phases. Phase 1 (Mark Road to Wade Road) was completed in spring of 2016. Phase 2 (Wade Road to Ajo Highway began in September 2018 and concluded in late summer 2020).

Project website: Valencia Road: Wade Road to Ajo Highway

Valencia Road, Alvernon Way to Kolb Road (RTA Ballot #24)

The Valencia Road project will provide improved east-west access in the southeast Tucson metropolitan area, along with easy access to Interstate 10. Phase 1 was completed in 2015. Improvements include a wider roadway from four lanes to six lanes including the underpass at Interstate 10 and the bridge structure over the Union Pacific Railroad tracks.

Reconstruction of the Valencia Road/Kolb Road intersection was completed in summer 2019. Improvements include a parkway at-grade intersection featuring movements that use on ramps in place of left turns for the major turn movements, as well as indirect left turns (U-turns) to increase capacity and enhance safety. Improvements extend one mile east and west of Kolb Road. The Valencia Road/Kolb Road intersection is one of the busiest in the region. The RTA managed design and right-of-way acquisition phases. The City of Tucson managed the construction phase.

Project website: Valencia Road, Alvernon Way to Wilmot Road

Project website: Valencia Road, Wilmot Road to Kolb Road

Valencia Road, Kolb Road to Houghton Road (RTA Ballot #25)

This project will widen Valencia Road to a 6-lane parkway with bike lanes, sidewalks and drainage for all-weather access. Valencia/Kolb intersection improvements will precede this roadway project. As of summer 2020 roadway design is underway. The construction start date is still to be determined.

Valencia Road, I-19 to Alvernon Way (RTA Ballot #23)

This project will be designed to include access management, safety improvements and intersection capacity improvements. Construction will occur in the 4th period of the RTA plan.

Wilmot Road, North of Sahuarita Road (RTA Ballot #33) – Completed

This project improved access to and from southeast metropolitan Tucson for residents who live in the Wilmot/Sahuarita roads area. Wilmot Road, north of Sahuarita Road was a dirt trail for about seven miles before it met pavement. Now, it is a 2-lane paved roadway with improved low-water crossings for access during rainy weather. This is one of several RTA-funded projects coming in below the estimated cost: 20 percent below the original estimate at just under $5 million. The project was completed in June 2017.

Project website: Wilmot Road, Sahuarita Road to south of I-10