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ADOT to Spend $185M Expanding Loop 101

Credit: Arizona Department of Transportation

By Roland Murphy for Arizona Builder’s Exchange

North Valley commuters could see some relief for congestion on the Loop 101 by Fall 2020 as the result of an RFQ the Arizona Department of Transportation this week.

The department plans to spend $185.4M to expand the freeway between Interstate 17 and Pima Road through a Design-Build project.

According to the Request for Statement of Qualifications portion of the packed, ADOT says, “The work includes design and construction for new general purpose lanes on SR 101L in both travel directions.

In the description of work, ADOT justifies the project by saying, “Growing traffic demand has caused the SR 101L corridor to become increasingly congested during the morning and evening peak travel periods, and traffic volume projections indicate the congestion will worsen in the future. Additional general – purpose lanes and auxiliary lanes will increase the freeway capacity and help alleviate increased levels of traffic congestion in the future.”

Major elements of the project are:

  • Adding one general purpose lane in each direction between the I-17 interchange and Pima
  • Adding an auxiliary lane in each direction between 7th Street and Cave Creek Road
  • Adding a new 101 overpass structure at the future Miller Road alignment
  • Modifying the ramps and frontages at the I-17 and Pima interchanges

Additional components include noise and retaining walls, utility coordination, drainage, pavement markings and coordination of all the project-associated professional services.

The RFQ and associated documents are available on the ADOT website. The project number is 101-A-(213)S.

NOTE: Paid subscribers receive additional project details in our twice-weekly PDF publication, including project stakeholder information and valuable project bidding leads. Find out more about AZBEX subscriptions or contact Rebekah Morris at or (480) 709-4190

1 Comment on ADOT to Spend $185M Expanding Loop 101

  1. It is nice to know that our AZ DOT have serious future vision…Not. The 101 was destined to be inadequate from day one. And, when they added the HOV lane, why not address it then. What AZ DOT needs are people that can forecast substantially better than the current AZ DOT leaders. If you want to do something for more money than it should cost, or take substantially longer than it should, or not have the future in mind, generally just screw it up, leave it to the government.

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