51st and 43rd avenues Traffic Interchanges - Loop 303, Lake Pleasant Parkway to I-17 Improvements

The Arizona Department of Transportation, in coordination with the Maricopa Association of Governments, the Federal Highway Administration and the city of Phoenix, has initiated a project to construct new Loop 303 traffic interchanges at 51st and 43rd avenues. The freeway was originally constructed to accommodate these traffic interchanges with current Loop 303 freeway traffic using the location of the future ramps. The 51st Avenue interchange will be shifted slightly to the west to accommodate the realignment of 51st Avenue.

The new traffic interchanges at 51st and 43rd avenues, which are expected to break ground in 2022 and be open in summer 2023, are to provide access to new development along the north side of Loop 303. These cross streets will not be extended south of the freeway as part of the project.

Note: While the city of Phoenix’s long-range transportation plan identifies the planned extension of 43rd, 51st and 67th Avenue/Pyramid Peak Parkway south of Loop 303 based on future development, the city has no immediate plans to extend any of these roadways.


Loop 303 Lake Pleasant Parkway to I-17 Project Map