I-10 Traffic Interchange at Twin Peaks
Frequently Asked Questions

Q: Where will traffic signals be located on Twin Peaks Road?

A: Preliminary analyses indicate that traffic signals may be located at each of two cross-road intersections with freeway ramps and at the intersections of Twin Peaks Road and Coachline Road, Linda Vista Boulevard and Camino de Mañana, and Twin Peaks Road and the Tiffany Loop. All traffic signal installations are subject to the findings of a Traffic Signal Warrant Study. - Dave Perkins, Kimley-Horn


Q: Will there be bike lanes and/or pedestrian paths?

A: Multi-use paths will accommodate bikes and pedestrians along Twin Peaks Road and Camino de Mañana. - Scott Stapp, HDR


Q: Will there be neighborhood access onto Twin Peaks Road - in and out of subdivisions?

A: The neighborhood access onto and off of Twin Peaks will be maintained during the project construction. The work to be performed on existing Twin Peaks Road will require only minor traffic shifts. - Eric Sibson, URS


Q: Will the interchange go over or under the Union Pacific Railroad?

A: Twin Peaks Road will be constructed over I-10 and over the railroad tracks. Signalized intersections will be constructed on Twin Peaks Road to provide access to and from the freeway and the frontage roads. - Dave Perkins, Kimley-Horn


Q: Will Twin Peaks Road be widened?

A: Twin Peaks Road between Silverbell Road and I-10 will be a 4-lane roadway with raised medians, bike lanes, and sidewalks, similar to the Twin Peaks Road, west of the Santa Cruz River. Twin Peaks Road between Linda Vista Road and I-10 will be a 6-lane divided roadway with raised medians, bike lanes, and sidewalks. - Dave Perkins, Kimley-Horn


Q: Will the median on Twin Peaks from Silverbell to the river remain?

A: The median on Twin Peaks Road between Silverbell Road and the Santa Cruz River will remain. - Dave Perkins, Kimley-Horn


Q: Can speed humps be installed on side streets surrounding Twin Peaks?

A: Following construction and project opening, the Town of Marana will monitor traffic volumes on local streets in the vicinity of Twin Peaks Road and work with neighborhood associations and individuals to identify and resolve problems. Speed hump installations will be considered in addressing cut-though and excessive speeds on local streets. The Town of Marana does not allow speed humps on streets designated as arterials and collectors. - Dave Perkins, Kimley-Horn


Q: What about pedestrian access on Twin Peaks Road and at the school crossing?

A: During the project design, the Town of Marana and the design team have coordinated with the Principal of Twin Peaks Elementary and the Marana Unified School District. As part of Marana's Safe Routes to School Program, improvements will be constructed to improve traffic and pedestrian flow to and from the school. Following project completion, the Town of Marana will monitor traffic volumes and pedestrian flow to and from the school. Together both parties will then identify and resolve any issues. - Dave Perkins, Kimley-Horn

 

This is a project of the Regional Transportation Authority. The voter-approved, $2.1 billion RTA plan will be implemented through 2026. Details about the full plan are available at www.RTAmobility.com. The Regional Transportation Authority has a nine-member board with representatives from local, state and tribal governments. This project will be managed in partnership by the Arizona Department of Transportation and the Town of Marana.

Arizona Department of TransportationFederal Highway AdministrationRegional Transportation AuthorityTown of Marana