ADOT: Building new I-10 interchange in Marana on schedule

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The Arizona Department of Transportation says a major Tucson-area freeway interchange construction project is on schedule after months of work but still with a long ways to go.

Construction of a new Interstate 10 interchange with Ina Road in Marana began in February and is scheduled to be completed in 2019.


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The project includes widening I-10 to eventually accommodate four lanes of traffic in each direction, expanding Ina Road to two lanes in each direction and reconstructing frontage roads

The interchange will have new bridges carrying Ina Road traffic over I-10, Union Pacific railroad tracks and the Santa Cruz River.

ADOT says crews are about halfway done with work on the west side of I-10. Crews will move to the east side of I-10 in early 2018.

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