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Welcome to the Interstate 19: San Xavier Road to Interstate 10 Design Concept Report and Environmental Assessment project site. Information on this site includes a project description and useful links to related information. The community is invited to comment on the proposed long-term solution for this portion of I-19.
ADOT, in association with the Federal Highway Association, is currently evaluating improvements to I-19 to alleviate congestion and increase capacity within the corridor.
The purpose of this project is to evaluate long-term improvements (2030) to I-19 between San Xavier Road and the I-10/I-19 traffic interchange.
ADOT and FHWA have been evaluating the need for construction of the ultimate or long-term improvements, as identified in the 2003 I-19 Corridor Study, to better meet the needs of the traveling public:
Project Details
I-19 Corridor Study: Interstate 10 to Pima/Santa Cruz County Line
ADOT completed a study in 2003 to identify transportation needs for the corridor through the year 2030. The study recommended long-term improvements through the year 2030 including additional lanes, auxiliary lanes and frontage roads in each direction of travel from San Xavier Road to I-10 with preferred short- and mid-term improvements, including additional interim travel lanes.
I-19 Project Assessment: San Xavier Road to Ajo Way
ADOT completed a Project Assessment (PA) in 2003. The purpose of the PA was to evaluate the feasibility of increasing the capacity of I-19.
I-10/I-19 Traffic Interchange
Construction of the traffic interchange was completed in 2004.
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