I-10 Twin Peaks Traffic Interchange, Environmental Assessment

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Public Involvement/Project Coordination October 2005 Comment: Would like to see a bridge over the railroad tracks. Response: A grade-separated railroad crossing is part of the proposed improvements (see Chapter 3, Preferred Alternative, page 3-11). Comment: What are the predicted traffic volumes for Twin Peaks Road and the interchange? Response: According to the Traffic Report, 21,100 vehicles per day and 28,900 vehicles per day would use Twin Peaks Road west and east of the interchange by the year 2030, respectively. Comment: Will the design concept coordinate with the DeAnza Trail? Response: Yes, the DeAnza Trail would cross beneath the Twin Peaks Road bridges over the Santa Cruz River. The bridge would be of sufficient height to allow equestrians to pass beneath the bridges (see Chapter 3, Preferred Alternative, page 3-11). Comment: Will the traffic volumes take into account the new Continental Reserve development? Response: Yes, the traffic projections provided for this project include planned growth in employment and population in the entire area through the year 2030. Comment: Will there be sound walls along Twin Peaks Road? Response: The traffic noise analysis recommended sound walls only along the west side of Continental Ranch south of Twin Peaks Road. The existing privacy walls along Twin Peaks Road are effective at mitigating traffic noise (see Chapter 4, Noise Section, page 4-49). Comment: Why does the process take so long? Can design be done during the planning process to speed things up? Response: This project would utilize federal funds and must follow the federal process; therefore, final design may not proceed until after the environmental documentation is completed. Comment: What about widening some of the other roads, like Silverbell from Cortaro to Ina? Response: Silverbell Road from Cortaro Road to Ina Road is anticipated to be constructed and widened prior to the completion of this project; however, widening other roads does not accomplish the project’s established purpose and need (see Chapter 2, Project Need, page 2-2). Comment: How will we get in and out of Sunflower, if Twin Peaks is extended and becomes busier? Response: Traffic signals are proposed at the intersections of Twin Peaks Road/Coachline Road and Twin Peaks Road/Access Roads; therefore, the signals would produce gaps in traffic needed to cross the traffic lanes. The existing median opening at Sunflower Ridge Road would remain also, providing a storage area for turning vehicles. Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista 5-4 Project No.: NH-010-D (AIW) TRACS No.: 10 PM 236 H5838 01D
Public Involvement/Project Coordination October 2005 Comment: Will we be meeting again with Sunflower? Response: Yes, several meetings with the public would occur during the project. A public hearing on the EA would occur. Comment: What will happen at Twin Peaks Elementary School when traffic increases on Twin Peaks Road? Response: According to the Traffic Report, most pedestrian and bicycle traffic to Twin Peaks Elementary School originates south and east of the school. A shared use path was proposed south of Twin Peaks Road, but is not a part of this project (see Chapter 3, Preferred Alternative, page 3-11). The proposed traffic signals at the intersections of Twin Peaks Road/Coachline Boulevard and Twin Peaks Road/Silverbell Road would enable pedestrians to safety cross at these intersections. The Town would work closely with the Marana Unified School District on appropriate crossing measures. Letters were sent to approximately 93 homeowners closest to the project inviting them to one-on-one meetings that were held in early September. The team met with residents on Saturday September 6, 2003 from 9:00 a.m. to 12:00 p.m. and on Wednesday September 10, 2004 from 4:00 p.m. to 7:00 p.m. These meetings took place in the small conference room at the Sunflower Community Center. A total of 10 property owners within Continental Ranch scheduled individual appointments to meet with members of the project team to learn about the proposed project, ask any questions, and provide input. Residents were concerned about the increase in traffic and noise associated with the Twin Peaks Road TI. The people who lived along the Santa Cruz River were concerned about visual impacts. Other concerns were the ability to get into and out of the side streets and safety concerns for the children walking to school. Public Information Open House #1 - Comments and Response Summary Approximately 350 people attended an open house on October 20, 2003 at the Sunflower Village Center – 9401 North Sunflower Park Drive. Blank aerial maps were displayed and project team members explained the overall project concept to individuals and small groups. Comment forms were provided asking the participants to record any comments or ask any questions. Notifications were mailed to approximately 15,000 residents that reside within a few miles of the project area, including residents in Continental Ranch, Sunflower, Dove Mountain, and communities east of I-10. Newspaper advertisements were placed in the October 5, 2003, Sunday Arizona Daily Star and the weekly Northwest Explorer newspapers on October 8, 2003. A summary of comments received and advertisements for the meeting may be found in Appendix A. Comment: Construct the TI immediately to relieve Cortaro Road and Silverbell Road (45 comments) Response: This project would utilize federal funds and must follow the federal process; therefore, final design may not proceed until after the environmental documentation is completed. Comment: Provide grade-separation at the railroad (24 comments) Response: A grade-separated railroad crossing is part of the proposed improvements Interstate 10 Traffic Interchange at Twin Peaks/Linda Vista 5-5 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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