I-10 Twin Peaks Traffic Interchange, Environmental Assessment

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Affected Environment and Environmental Impacts October 2005 could not be constructed in an area that would preferentially benefit this group. As discussed in Chapter 3, Alternatives, an alternative corridor location north of the preferred alternative was considered, but eliminated from further consideration because this location did not serve the proposed project’s demonstrated purpose and need. Neighborhood Continuity According to the Town of Marana’s General Plan Update, the Town is challenged to provide a sense of unity and accessibility to all public and private services because the Town boundaries are very widespread, development is irregularly shaped, and the Town is bisected by I-10 and the Santa Cruz River. This project would provide an additional connection between services east and west of I-10 and the Santa Cruz River, which would improve the sense of unity that the Town seeks to promote. The preferred alternative would also provide important improvements to bicycle and pedestrian facilities within the area of the Twin Peaks Road TI. In addition, the preferred alternative would improve access for constituents on the east side of I-10 to the Santa Cruz Shared Use Path and the De Anza National Historic Trail. These facilities may result in improved community cohesion and continuity. The project would also provide sidewalks and intersections within the project limits that would be in compliance with the ADA and resulting regulations. These improvements would provide enhanced access to those with mobility impairments, and generally would improve accessibility for all pedestrians in the area. Emergency Services Two agencies, the Town of Marana Police Department and the Pima County Sheriff’s Department, provide police services to the project area. Emergency medical services are provided by Northwest Fire and Rescue, a private service provider. Limited emergency services such as hospitals and other medical facilities service the project area, but none of these facilities are located within the project area. The hospital closest to the project area (Northwest Medical Center at Orange Grove and La Cholla Roads) is located approximately 7 miles from the project area. The new Northwest Medical Center near Tangerine Road and First Avenue is approximately 10 miles from the project area. Although these facilities would not be affected directly by the proposed improvements, Northwest Medical Center, at an early public agency scoping meeting for this project, stated that the at-grade crossings at El Camino de Mañana and Cortaro Road may result in extended delays for emergency medical personnel trying to transport individuals from the west side of I-10 to hospital facilities on the east side of I-10. These delays may be critical to some patients. An additional grade-separated crossing within the study area would improve the chances of getting to critical patients from the west side of the interstate to medical facilities on the east side of the interstate quickly and thereby improve the chances of survival for these individuals. Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista 4-82 Project No.: NH-010-D (AIW) TRACS No.: 10 PM 236 H5838 01D
Affected Environment and Environmental Impacts October 2005 Social Services The project area is served by the Marana Unified School District. A second school district (Amphitheater Unified School District) is located near the study area, but east of Thornydale Road. There are several educational facilities located within the overall study area. Twin Peaks Elementary is located within the project area in Continental Ranch along Twin Peaks Road. Coyote Trail Elementary is located approximately 1.5 miles from the Twin Peaks Road TI. Tortolita and Marana Middle Schools are located approximately 3 and 7.5 miles from the Twin Peaks Road TI, respectively. Mountain View and Marana High Schools are located approximately 3.5 and 7.5 miles from the project area, respectively. These schools would not be affected directly by the proposed improvements; however, as discussed in Chapter 3, Alternatives, Mountain View High School families would benefit from the proposed improvements. Relocations/Displacements Residential The preferred alternative would displace permanently two occupied residences on commercial property in the project area. One of these residences is the only residence in the commercial area west of I-10 near the Twin Peaks Road TI. The proposed Twin Peaks Road extension to I-10 with its 300-foot R/W width would pass directly over this residence. The total commercial parcel of 2.3 acres would be acquired. Acquisitions and relocations are illustrated in Figure 4-6. The other residence proposed for displacement is located east of I-10 near the proposed new intersection of Twin Peaks Road/El Camino de Mañana/Linda Vista Boulevard. It is important to note, however, that this residence is leased for ranching in the area. This property is part of a large parcel that is planned for development; therefore, even if the Twin Peaks Road TI were not constructed, this residence would be removed by private interests. Commercial The preferred alternative would result in displacement and subsequent relocation of a number of occupied commercial properties. The proposed western reconstruction of the eastbound I-10 frontage road would result in the acquisition and relocation of all 8 commercial parcels between the access road and the eastbound I-10 frontage road north of Linda Vista Boulevard. An additional commercial property would be displaced at the new TI, and 2 commercial parcels near the southern intersection of the eastbound I-10 frontage road and the access road. These commercial displacements would result in total takes of 12.8 acres. The businesses displaced by the proposed improvements would be: • Eller Media Company 9741 N. Casa Grande Hwy • Amigos Nursery 9705 N. Casa Grande Hwy • Jarrell Pre-Cast 9685 N. Casa Grande Hwy Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista 4-83 Project No.: NH-010-D (AIW) TRACS No.: 10 PM 236 H5838 01D
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Interstate 10 Traffic Interchange a
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Draft Environmental Assessment Octo
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Mitigation Measures October 2005
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I-10 Twin Peaks Traffic Interchange, Environmental Assessment

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