Arizona 17 August 19, 2018

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Vol. III • No. 17

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On the Right Track: $55M SR 347 Expansion Over UPRR By Jennifer Rupp CEG CORRESPONDENT

A $55 million project in Maricopa, Ariz., is under way, following an extensive traffic and accessibility study. SR 347 is the city’s main transportation corridor through the community, serving as a regional connector to major employment and recreation areas. Traffic averages more than 31,000 vehicles per day and future (2040) projections of double that amount sparked a study to improve access and capacity. The Arizona Department of Transportation (ADOT), in conjunction with Federal Highway Administration (FHWA) and the city of Maricopa evaluated a total of 10 alternatives which would provide improvements to access, capacity and traffic operations through 2040. The study also con-

sidered a future grade separation (bridge) to replace the existing atgrade intersection of SR 347 at the Union Pacific Railroad (UPRR) track. Following a public hearing and environmental assessment, Alternative H was selected. Just south of the Maricopa-Casa Grande Highway, SR 347 crosses the existing UPRR where there are currently 40 to 60 trains per day; the UPRR has plans to expand service, which would increase train traffic upwards of 100 trains per day. Additionally, the Amtrak station is located just west of the intersection and vehicular traffic is routinely delayed for its passenger operations. The two-year project aims to free Maricopa commuters from long waits as trains cross busy SR 347 in the central part of the city. see ADOT page 7

ADOT photo

Bridge Rebar – Ames Construction erects the bridge piers for the new SR 347 bridge over the UPRR tracks.

South Mountain Freeway Sound Wall ‘Fins’ Start to Take Shape Frank Lloyd Wright’s Early Work in Arizona Influences Freeway Aesthetics Shark Week may be history, but you can see fins along a stretch of the emerging Loop 202 South Mountain Freeway in Ahwatukee, Ariz. Standing at intervals atop the sound wall between 40th and 48th streets, these customdesigned panels resembling fins are decorative accents inspired by some of modern architect Frank Lloyd Wright’s early work in Arizona. They’re painted a reddish accent color that extends in a saw-toothed pattern down the sound wall and also appears on retaining walls, abutments and bridge barriers in the area. These accents are a throwback to Wright’s design experimentations from his late 1920s

ADOT photo

Standing at intervals atop the sound wall between 40th and 48th streets, these customdesigned panels resembling fins are decorative accents inspired by some of modern architect Frank Lloyd Wright’s early work in Arizona.

desert winter encampment, known as the Ocatillo Settlement that was located about a half mile from the current freeway alignment near 32nd Street. The architecture at Wright’s camp included triangular wood and canvas-clad structures rising above low wooden walls with horizontal bands, according to Joseph Salazar, the Arizona Department of Transportation’s roadside development, project landscape and architecture coordinator. “The accents are designed to give a sense of rhythm and movement to travelers on the freeway. The fins angle into the line of travsee SOUND page 7


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