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Arizona State Route 505
Planned freeway in the Phoenix metropolitan area, Arizona, United States From Wikipedia, the free encyclopedia
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Arizona State Route 505 (SR 505) or Loop 505, also known as the Pinal North–South Freeway is a planned freeway in the extreme southeastern region of the Phoenix Metropolitan Area currently under study by the Arizona Department of Transportation (ADOT). When constructed, the route will connect Apache Junction, San Tan Valley, Florence, and Eloy, and serve as a Phoenix–Mesa bypass for cities and suburbs in far eastern Maricopa County and northwestern Pinal County.[1][2]
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Route description
The exact route of the freeway has yet to be determined, but the corridor currently under study by ADOT has been narrowed down to a 1,500-foot-wide (460 m) corridor, which shows the southern terminus at Interstate 10 (I-10) near Eloy. From I-10, the route will run to the east of SR 87 northward to Coolidge and Florence where it will cross the Gila River just north of an intersection with SR 287 and continuing northwards toward a planned intersection with SR 24 east of Queen Creek. Continuing north, the freeway will serve the rapidly growing suburbs of San Tan Valley and Apache Junction, ultimately ending at its northern terminus in the Apache Junction-Gold Canyon area at an interchange with the Superstition Freeway at its planned Gold Canyon realignment.[1][3][4]
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History
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Initial Planning
In 2003, the Maricopa Association of Governments (MAG) released the "Southeast Maricopa / Northern Pinal County Area Transportation Study", which was set to identify corridors to build a regional freeway network in Pinal County, which was set to experience massive population growth in the coming decades.[2] Five corridors were identified, the Apache Junction-Coolidge Corridor, a north-south freeway from US-60 to I-10, the Williams Gateway Corridor, a east-west freeway running from Loop 202 to US-60, which is now modern day SR 24, the East Valley Corridor, a east-west freeway from I-10 to the US-60/SR-79 Junction, the Price Freeway Connection, a southern extension of Loop 101 to Interstate 10, and the US-60 Extension, a eastern extension of US-60 to SR-79.)[5]
In 2006, the Pinal County Corridors Definition Study took place, further finalizing various freeways in Pinal County, per the request of the state legislature.[2] The Loop 101 extension was removed entirely, and the Apache Junction-Coolidge Corridor and the East Valley Corridor, were combined to form the Pinal North-South Corridor. (The Williams Gateway and US-60 Extension Corridors were also finalized in this study.)[6] Funding was also set aside for the environmental studies for these three freeways.[2]
In April of 2009, ADOT would launch the aptly-named Pinal North-South Study, an environmental study to further proceed the freeways progress, funded by the previously mentioned set aside funding.[2] However, in October of 2009, in response to a projected budget shortfall of $6.6 billion brought on by the Great Recession, MAG voted to modify its Regional Transportation Plan by suspending funding to numerous projects, including all three of the freeways in Pinal County.
Project's Revival and Modern Planning
In a 2012 map from the unrelated Interstate 11 project, the entirety of the Phoenix Freeway System was shown, including the three Pinal County freeways, shown as "Future Corridors".[3]
In 2016, it was announced that the project would be converted into a tiered environmental study approach, with the project slowly being completed over the coming years as funding was made available.[7] The Tier 1 Study was started at this time.[8]
In 2017, public comment was opened for the Tier 1 Study, showing various alternatives for the route. In 2019, the draft Tier 1 Study was finalized, with the route being narrowed to a 1,500 ft corridor.[8] Notably, the finalized route was farther to the east then past proposals, like the one seen in the 2012 map.[3] In 2021, the Tier 1 EIS was officially finalized and approved, and the selected alternative was set to move forward into further study.[8]
In August of 2023, ADOT launched the Tier 2 Study. The corridor was split into two segments, a northern segment (segment 1) and a southern segment (segment 2).[9] When the study is ultimately completed, a 400 ft corridor will be selected as the preferred alternative, as well as a DCR and ROD.[10] In-person public meetings were held at this time to get additional data from stakeholders near Segment 1.[9]
In December of 2023, ADOT's Route Numbering Committee designated the corridor from US-60 to I-10 as State Route 505.[11]
In 2025, public comment was opened for the Segment 1 portion of the Tier 2 study,[12] three slightly different versions (western, central, eastern) of the route were shown as alternatives, along with the proposed 12 interchange locations. The completed study for the 20-mile segment is expected to be completed in 2027.[10]
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Current status
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ADOT is currently in the Tier 2 environmental study phase of the planned Pinal North-South Freeway to serve expected growth in the Pinal County region of the Phoenix Metro area.[2][1] As opposed to the Tier 1 study, which narrows a proposed corridor down to a 1,500 ft corridor alignment, the Tier 2 study identifies the interchange locations, analyzes impacts to stakeholders, property owners, etc and further narrows the route to 400 ft. The Tier 2 study of the 20-mile segment from Apache Junction to Florence recently finished its public comment period and is scheduled to be finalized in 2027.[10] The remaining 35 miles from Florence to Eloy is projected to have it's portion of the study finalized in 2028. This study, building upon the Tier 1 study completed in 2021,[8] will produce a ROD and a selected segment alternative. Following completion of the Tier 2 study, final design, right of way acquisition, and ultimately construction will be needed for the project's completion.[10] This future freeway will connect I-10 around Eloy with the Superstition Freeway (US 60) in Gold Canyon, passing through Coolidge and Florence and intersecting with the planned future alignment of the Gateway Freeway (SR 24).[3]
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Exit list
Exit numbers have not been assigned yet. Exit list based on Tier 2 study for Segment 1,[10] and Tier 1 study for Segment 2.[1][8] The entire route is in Pinal County.
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See also
References
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