Project Overview

The Arizona Department of Transportation has made significant strides towards completion of the much anticipated Interstate 10 - Twin Peaks Interchange. By the end of this year, traffic will be flowing on the Twin Peaks Interchange.

There are fewer than 120 days before the roadway opens to give motorists and cyclists more travel options in Marana. 

Earlier this year, the final touches were made to the Santa Cruz River Bridge and crews have made significant headway on the I-10 overpass and Union Pacific Railroad bridge. Currently, crews are working towards a December project completion timeline.

As part of the Twin Peaks Project, the Town of Marana is working to improve drainage structures, roadway elevations and manhole issues prior to the new paving and overlay of rubberized asphalt that will be placed along Twin Peaks Road and Silverbell Road. Those improvements will be complete early next year with paving and overlay starting in February.  

The Town of Marana, Arizona Department of Transportation, and Pulice Construction held a project open house on February 10, 2010 at Twin Peaks Elementary School. Project team members were available to update the public on construction activities and future schedules. Over 45 attendees came out to support the project, ask questions, and view updated project photos, renderings, and design plans. The presentation can be found on the right sidebar.

This Project will:

• Greatly reduce travel time in northwestern Pima County and increase safety by taking some traffic off busy streets, most notably Cortaro Road.
• Connect to Marana’s upcoming widening and roadway improvements of Camino de Mañana, realigning the roadway north to the intersection of Tangerine Road and Dove Mountain Boulevard.
• Unite the growing Dove Mountain community with Continental Ranch and provide easier access to I-10.

Timeline

2003	Public meetings to discuss design elements were held from 2003 to 2007.
2005	The Design Concept and Environmental Assessment were complete in late 2005.
2008	Final Design was complete in late 2008.
2009	The Project went to bid in February 2009; ADOT announced Pulice Construction, Inc. as the selected contractor in March 2009.
2009	Construction will begin in spring 2009 and will take approximately 18 months to be complete and open to traffic.