I-10 Twin Peaks Traffic Interchange, Environmental Assessment

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Affected Environment and Environmental Impacts October 2005 proximity impacts are so severe that the protected activities, features, or attributes that qualify a resource for protection under Section 4(f) are substantially impaired. Existing Conditions Several existing or proposed Section 4(f) resources are located within the study area. No wildlife and waterfowl refuge areas exist within the study area. Section 4(f) resources near the project area are shown on Figure 4-7. Impacts No Build Alternative The no build alternative would not permanently incorporate, temporarily occupy, or constructively use 4(f) resources; therefore the no build alternative would have no impacts to Section 4(f) resources. The no build alternative would not improve access to or connectivity between recreational facilities or provide increased availability of bicycle or pedestrian facilities. Preferred Alternative Five Section 4(f) resources are located near the project area. Each of these resources and the potential impacts to each of the resources are discussed in the following paragraphs. Twin Peaks Elementary School Description of Resource: Twin Peaks Elementary School is a public school managed by the Marana Unified School District. Twin Peaks Elementary’s outdoor recreational facilities (approximately 6 acres) are used by the general public outside school hours. Use of 4(f) Resource: Twin Peaks Elementary is outside the area of construction for the proposed improvements and no temporary use of the recreational facilities would be required for construction purposes or temporary construction easements; therefore, the preferred alternative would not permanently nor temporarily incorporate any resources from this facility into a transportation facility. Although noise levels at the facility would increase with the preferred alternative, the noise analysis determined that the increase would not cause sound levels to exceed the FHWA’s NAC (see Noise section, page 4-49); therefore, no constructive use of the resource would occur. The preferred alternative would resurface Twin Peaks Road adjacent to the school; therefore, access to the resource may be temporarily impacted during this work. These temporary impacts would be minimized by a traffic control plan; therefore, no use of the 4(f) property would occur. The preferred alternative would improve overall access to this resource. Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista 4-90 Project No.: NH-010-D (AIW) TRACS No.: 10 PM 236 H5838 01D
Avra Valley Rd Twin Peaks Rd Twin Peaks Elementary School Silverbell Rd Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista Juan Bautista de Anza National Historic Trail Santa Cruz River Shared Use Path School Park I10 El Camino de Mañana Linda Vista Blvd Union Pacific Railroad Cultural Resource 4-91 Cortaro Rd Hartman Ln Camino de Oeste Arthur Park Regional Park Thornydale Rd Figure 4-7 4(f) Resources Project Number: NH-010-D (AIW) TRACS No.: 010 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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Mitigation Measures October 2005 19
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Mitigation Measures October 2005 St
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Introduction October 2005 CHAPTER 1
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AVRA VALLEY RD MARANA I-10 SCENIC D
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Introduction October 2005 Cortaro R
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Project Purpose and Need October 20
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Alternatives October 2005 CHAPTER 3
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Alternatives October 2005 Figure 3-
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Alternatives October 2005 Preferred
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Alternatives October 2005 Twin Peak
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Alternatives October 2005 Twin Peak
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Alternatives October 2005 proposed
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Alternatives October 2005 Near the
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Avra Valley Rd. Twin Peaks Rd. Silv
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Affected Environment and Environmen
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Interstate 10 Traffic Interchange a
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Page 178 and 179: Bibliography October 2005 CHAPTER 8
Page 180 and 181: Bibliography October 2005 Tetra Tec
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I-10 Twin Peaks Traffic Interchange, Environmental Assessment

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