This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Arizona State Route 143 | |
|---|---|
| State | AZ |
| Type | SR |
| Route | 143 |
| Length mi | 3.93 |
| Established | 1967 |
| Direction a | South |
| Terminus a | Tempe |
| Junction | I‑10 |
| Direction b | North |
| Terminus b | Phoenix Sky Harbor International Airport |
| Counties | Maricopa County |
Arizona State Route 143
Arizona State Route 143 is a short north–south state highway in the Phoenix metropolitan area of Arizona. The route connects the Papago Freeway/I‑10 corridor near Phoenix and Tempe with the service roads and terminal access for Phoenix Sky Harbor International Airport and links to Loop 202. It functions as an urban connector facilitating movements between Interstate routes, municipal thoroughfares, regional transit hubs, and airport infrastructure.
The route begins near the Papago Freeway interchange with I‑10 and proceeds north, adjacent to the Papago Park area and skirting the eastern edge of Downtown Phoenix. It immediately provides access to ramps serving I‑17 movements and connects to collector–distributor lanes used by traffic bound for US 60 and the Maricopa County arterial grid. Traveling north, the highway passes next to the Sky Harbor Airport Station of the Valley Metro Rail and offers direct ramps to airport terminals and to ground transportation facilities including connections to Phoenix Sky Harbor International Airport parking and rental car operations. The corridor parallels freight and passenger rail rights-of-way including lines operated by Union Pacific Railroad and services to the Arizona Eastern Railway network, and it provides strategic linkage to Loop 202 via nearby interchanges.
Plans for a north–south express roadway in the heart of the Phoenix metropolitan area date from the mid-20th century as part of regional freeway studies conducted by Arizona Department of Transportation predecessors and the Maricopa Association of Governments. Initial construction began in the 1960s, aligned to serve burgeoning air travel at Sky Harbor and to relieve congestion on the Papago Freeway associated with growth in Phoenix and Tempe. Over the ensuing decades, the corridor was extended and reconfigured in response to federal funding through Federal Highway Administration programs and state initiatives supported by governors including Jack Williams and later administrations. Major modifications were executed in conjunction with Sky Harbor International Airport expansion projects and the development of Valley Metro Rail, coordinating with municipal planning by the City of Phoenix and the City of Tempe. Environmental reviews involved agencies such as the Arizona Department of Environmental Quality and the U.S. Environmental Protection Agency, while land acquisitions followed statutes such as the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970. Significant interchange reconstructions occurred during periods of federal ISTEA and TEA‑21 funding.
The highway intersects with regional and national routes that support airport access and metropolitan circulation. Key junctions include the ramps connecting to I‑10 and its collector–distributor system, access to US 60 movements toward Tempe, connections with frontage roads serving Phoenix Sky Harbor International Airport terminals, and proximate links to Loop 202 and former SR 143 alignments. These junctions serve passengers traveling to destinations such as Chandler, Mesa, Scottsdale, and Glendale, as well as freight routes toward Tucson and Nogales.
Planned projects affecting the corridor include capacity upgrades, safety improvements, and multimodal integration initiatives coordinated by the Arizona Department of Transportation and the Maricopa Association of Governments. Proposals under study involve ramp reconfigurations to improve access to Phoenix Sky Harbor International Airport, enhanced pedestrian and bicycle amenities linking to the Papago Trail and Tempe Town Lake regional network, and traffic signal optimization where the route interfaces with city streets managed by the City of Phoenix and the City of Tempe. Funding discussions reference discretionary programs administered by the Federal Transit Administration and discretionary grants from the U.S. Department of Transportation, while environmental compliance follows the National Environmental Policy Act process. Long-range metropolitan plans also consider integration with potential high-speed rail corridors and expanded Valley Metro services connecting to Phoenix Sky Harbor International Airport.
Traffic on the corridor reflects mixed airport, commuter, and freight flows, with peak volumes coinciding with airline schedules at Sky Harbor and morning/evening commuter peaks for workers commuting to Downtown Phoenix and nearby employment centers such as Arizona State University and the Phoenix Biomedical Campus. Freight movements use adjoining connectors to intermodal facilities operated by Union Pacific Railroad and road freight via I‑10 to regional distribution centers including those in Tolleson and Avondale. Traffic studies by the Maricopa Association of Governments and the Arizona Department of Transportation inform peak-hour lane assignments, incident management coordinated with Arizona Department of Public Safety, and transit priority treatments implemented by Valley Metro.
Exit numbering and junction design reflect the route’s short length and its role as an airport connector. The corridor’s ramps are numbered and signed to coordinate with the Interstate Highway System and local arterial signage administered by the Arizona Department of Transportation and the City of Phoenix. The junction list includes the southern interface with I‑10 collector–distributor lanes, mid-route airport terminal access points serving Sky Harbor International Airport, and northern connections to surface streets and transit facilities providing links to destinations such as Phoenix Sky Harbor International Airport, Downtown Phoenix, and Tempe. Signage complies with the Manual on Uniform Traffic Control Devices standards enforced by the Federal Highway Administration.
Category:State highways in Arizona Category:Transportation in Maricopa County, Arizona