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Northern Parkway Program
Loop 303 to US 60 (Grand Avenue)

Program Overview

The partners for the Northern Parkway Program are evaluating the projects to determine if the current design meets the region’s needs. They are evaluating updated traffic projections and socio-economic data. Updated information regarding the Northern Parkway Program is anticipated in late fall/winter 2016.

Currently, the proposed Northern Parkway extends 12.5 miles between Loop 303 and US 60 (Grand Avenue) in northwestern Maricopa County. When completed, the Parkway will be a high capacity, limited access roadway with overpasses at major intersections. The project is a partnership between Maricopa County, the Cities of El Mirage, Glendale and Peoria, and the Maricopa Association of Governments (MAG).

Program Segments & Schedule

Description of Work Status
  • Construction of a four-lane roadway, with two travel lanes in each direction
  • Installation of traffic signals at Sarival Avenue, Reems Road and Litchfield Road
  • Construction of a bridge over BNSF Railroad/143rd Avenue and a bridge connection to the Loop 303.
Construction Complete
Description of Work Status
  • Installation of a four-lane Northern Parkway configuration between Dysart Road and 111th Avenue
  • Construction of a two-lane (eastbound) frontage road parallel to (south of) existing Northern Avenue between Dysart Road and El Mirage Road, and improvements to Northern Avenue to a two-lane (westbound) frontage road.
  • Installation of signalized intersections along the frontage roads at Dysart Road and El Mirage Road
In Design - Evaluation in Process
Description of Work Status
  • Construction of a bridge over Reems Road to carry through traffic on Northern Parkway and bypass the traffic signal at this cross street intersection
Construction Complete
Description of Work Status
  • Construction a bridge over Litchfield Road to carry through traffic on Northern Parkway and bypass the traffic signal at this cross street intersection
Construction Complete
Description of Work Status
  • Construction of an all-weather westbound bridge to replace the existing low-water crossing at Northern Avenue
In Design - Evaluation in Process
Description of Work Status
  • Widening of Northern Avenue between 99th Avenue and the east access ramps to Loop 101 to provide three travel lanes in each direction
  • Upgrade signalized intersections at Loop 101 with installation of dual left-turn lanes in both directions
TBD - Evaluation in Process
Description of Work Status
  • Construction of a bridge over Dysart Road to allow Northern Parkway to bypass the traffic signal at the intersection
  • Conversion of previously constructed travel lanes east and west of the bridge to frontage roads
TBD - Evaluation in Process
Description of Work Status
  • Construction of an east/west roadway along the Butler Drive alignment between Dysart Road and the 127th Avenue
  • Construction of a north/south roadway along the 129th Avenue alignment between the Butler Drive and Northern Parkway
TBD - Evaluation in Process
Description of Work Status
  • Construction of a bridge over El Mirage Road to allow Northern Parkway to bypass the traffic signal at this intersection.
  • Construction of ramp connections between Northern Parkway and El Mirage Road
  • Conversion of previously constructed travel lanes east and west of the bridge to frontage roads
TBD - Evaluation in Process
Description of Work Status
  • Conversion of earlier interim improvements between Dysart Road and 111th Avenue into the ultimate eastbound lanes configuration
  • Construction of westbound lanes to create the full parkway configuration between the Aqua Fria River crossing and 111th Avenue
TBD - Evaluation in Process
Description of Work Status
  • Reconstruction of Northern Avenue between 111th Avenue and 107th Avenue to allow for three through lanes in each direction.
  • Construction of four Alternative Access Routes to provide enhanced connectivity and access to the communities north and south of Northern Parkway
  • Installation of a traffic signal at 111th Ave and Northern Parkway
TBD - Evaluation in Process
Description of Work Status
  • Upgrade the current Northern Avenue to provide three through travel lanes in each direction
  • Intersection improvements at 103rd Avenue.
  • Construction of a separate Agua Fria River bridge parallel to the bridge previously constructed in Phase 10.
TBD - Evaluation in Process
Description of Work Status
  • Widening of Northern Parkway to three through lanes in each direction between Loop 101 and 91st Avenue
TBD - Evaluation in Process
Description of Work Status
  • Make intersection improvements at the intersections with 91st Avenue, 83rd Avenue and 75th Avenue
  • Construction of three Alternative Access Routes
  • Construction of a two-way flyover ramp in the medians between the west leg of Northern Parkway and the southeast leg of Grand Avenue to move traffic uninterrupted in both directions between eastbound Northern Parkway and the southeast leg of Grand Avenue
  • Widen Northern Avenue to four lanes in each direction at the intersection of Grand Avenue to allow for right turn lanes
TBD - Evaluation in Process
Questions? Contact the Program Team

Ben Markert, Program Manager

Project Information: (602) 506-3342

Program Development

Inception to Implementation

In 2001, the City of Glendale’s Transportation Plan was updated with the assistance of a 61-member committee known as the Citizens Advisory Committee for Transportation Issues (CACTI). This group envisioned the need for a regional east/west  route west of I-17 in the vicinity of Northern Avenue to improve regional West Valley connectivity between major roadways such as Loop 303, Loop 101 and US 60 (Grand Avenue) through the cities of El Mirage, Glendale, Peoria, as well as  areas of unincorporated County and western Phoenix.

The idea was subsequently adopted in Glendale’s Transportation Plan and in November 2001, the city passed a half-cent sales tax to fund a variety of transportation projects derived from this plan, including matching funds for a “super street” at Northern Avenue.

The comprehensive Northern Parkway Program concept was initially conceived by a multi-agency transportation task force consisting of representatives of El Mirage, Glendale, Peoria, Maricopa County Department of Transportation (MCDOT), the Flood Control District of Maricopa County (FCDMC), the Arizona Department of Transportation (ADOT), Maricopa County Association of Governments (MAG) and Luke Air Force Base (LAFB). It was further developed in the Northern Parkway Design Concept Report (October 2003).

In November 2003, MAG adopted the Northern Parkway concept recommended in the 2003 Design Concept Report, and included the parkway in its Regional Transportation Plan (RTP). The following year, the parkway was adopted by Maricopa County and included in MCDOT’s Major Streets and Routes Plan. Proposition 400, the extension of the countywide half-cent sales tax, was passed by voters in November 2004 and provided the regional funding source for the design and construction of the future Northern Parkway.

The City of Glendale then took the lead in developing the design concept and preparing the environmental documents. A Draft Design Concept Report was issued by the City of Glendale in July 2008 and the Draft Environmental Assessment was issued in September 2009. The Federal Highway Administration (FHWA) issued, a Finding of No Significant Impact (FONSI) In May 2010.

Pursuant to the intergovernmental agreement approved by the Northern Parkway  Program partner agencies in December 2008, MCDOT is leading final design efforts and is managing construction of the Northern Parkway between Loop 303 and US 60 (Grand Avenue).

Northern Parkway Reports & Documents

  1. Five-year Life Cycle
  2. Design Concept Report
    • Report
    • Alternative 1 (71.7 MB)
    • Alternative 2 (3.6 MB)
    • Alternative 3 (11.8 MB)
  3. Environmental Reports
  4. Ultimate Parkway Cross-Section

Cost & Funding

The majority of funding for the Northern Parkway (70%) will come from regional sources, primarily Federal Surface Transportation Program funds (STP) allocated via the Maricopa Association of Governments (MAG) to the Maricopa County region. The remaining 30% will be borne by the partners in the following proportions,

  • El Mirage — 10%
  • Glendale — 40%
  • Peoria — 20%
  • MCDOT — 30%

Pursuant to the IGA, $315.8 million is budgeted for the Northern Parkway based on the MAG Regional Transportation Plan. This represents roughly half of the total projected cost of $612.6 million.