Prop 479

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Phoenix Streets improvements​

How Will Prop. 479 Impact Phoenix?

Prop. 479 is the continuation of an existing, dedicated half-cent sales tax in Maricopa County to fund transportation improvement projects. The continuation of the sales tax will fund future freeway, streets and transit projects and services shown below:


Phoenix Transit Service

  • Continue and Improve Local Routes and Commuter Bus Service.
  • Maintenance of existing Light Rail System.
  • New Bus Rapid Transit (BRT) route on 35th Ave. and Van Buren St.

What is BRT?

Bus Rapid Transit (BRT) logo

A high-capacity bus service that provides a fast, reliable, and convenient transit experience.
More info at: meetphoenixbrt.com

Phoenix Street Improvements

  • Reconstruct 7th Ave. between McDowell Rd. a​nd Northern Ave.
  • Reconstruct 7th St. between McDowell Rd. and Hatcher Rd.
  • Reconstruct Bell Rd. between 51st Ave. and Scottsdale Rd.
  • Reconstruct Indian School Rd. from 59th A​ve. to 27th Ave.
  • Widen Baseline Rd. between 63rd and 71st avenues.
  • Widen Dobbins Rd. between 27th Ave. and Loop 202.
  • Widen Southern Ave. between 37th Ave. and 51st Ave.
  • Widen Sonoran Desert Dr. between Dove Valley Rd. and Cave Creek Rd.

Impacts of arterial projects include ...

  • Increased roadway capacity
  • Drainage improvements
  • Improved pedestrian and bicycle connections
  • Intersection upgrades
  • Improved transit connections
  • Reduced travel times 

​Phoenix Freeway Improvements

​Spine CorridorProp. 479 freeway improvements will improve commute and drive times for Phoenix area residents and visitors. 

A big focus is on the “Spine Corridor,” which serves as the backbone for transportation in the Phoenix metropolitan area. The Spine Corridor is a 31-mile stretch of the I-17 and I-10 freeways. Over 40% off all daily freeway traffic uses the Spine Corridor.

Interstate I-10

  • Interstate 10Improve Mini Stack (I-10/SR202/SR51)
  • Improve I-10 from Deck Park Tunnel to the I-17 Split
  • Improve I-10 from SR101 to I-17
  • Reconstruct interchanges at 27th, 35th, 43rd, 51st, 67th, 75th, 83rd, and 91st avenues, and at Baseline Rd., Warner Rd., Chander Blvd.
  • Install Direct HOV lanes at the I-17 Split
  • Build new 1-10 collector lanes between Baseline Rd. and Elliot Rd.

Interstate I-17

  • Interstate 17Rebuild I-17 interchanges at Bell Rd., Thunderbird Rd., Peoria Ave., and Glendale Ave.
  • Improve I-17 from I-10 to Loop 101
  • Build west busway interchange at I-10
  • Construct HOV lanes between SR74 (Carefree Highway) and Anthem Way

SR 30

  • SR 30Build the new SR30 freeway in the Southwest Valley to connect Loop 303 and I-17

US 60

  • US 60Install Direct HOV lanes at Grand Avenue and I-17

Loop 101

  • Loop 101Install direct HOV lanes at I-17
  • Widen Loop 101 from I-10 to US60 (Grand Ave.)

Loop 303

  • Loop 303Install a new interchange at I-17
  • Improve SR303 from Lake Pleasant Parkway to I-17​

Download Prop 479 Information (PDF)


Nothing contained herein shall be construed as the improper use of city resources to influence the outcome of the election on Proposition 479. All information provided herein is intended to be educational and factual and constitutes a routine city communication.​​​

​​Learn more

For more information and to explore an interactive project map, please visit the Maricopa Association of Governments Prop 479​ information page.

Maricopa County Association of Governments