Comment period extended for I-11 and Intermountain West Corridor Study

Community members have until March 7 to comment online about Level 2 Analysis

PHOENIX – The Arizona and Nevada departments of transportation have extended the date for providing online feedback on the latest Interstate 11 and Intermountain West Corridor Study results.

Those interested in providing feedback on the Level 2 Analysis now have one more week to do so. The comment period on this particular analysis will close on March 7. So far, the study team has received more than 700 comments about the Level 2 Analysis, which was recently completed by the study team. Those interested in providing input will be able to view a narrated presentation about the current status of the study and then submit comments online.

While online feedback for this phase of the study is being accepted for one more week at, general comments about the I-11 study can be submitted at any time via the project website on the “Get Involved” page.

The two transportation departments have been working together since the summer of 2012 on the Interstate 11 and Intermountain West Corridor Study, which includes detailed corridor planning of an interstate link between the Phoenix and Las Vegas metropolitan areas, and an extension of the corridor that would run through southern Arizona to Mexico and north through Nevada toward Canada.

Since last fall, the study team has explored the universe of alternatives for potential routes from Mexico to northern Nevada. That broad range of possible corridor alternatives underwent an initial evaluation and screening process by the study team in October. An additional level of analysis — the Level 2 Analysis — was recently conducted for the Phoenix to Las Vegas segment of the corridor. The current online feedback opportunity allows the public to view the results of this recent analysis and provide feedback prior to the study moving forward. Those interested in participating should visit the project website at  

The Interstate 11 and Intermountain West Corridor Study is a two‐year, multiphase, high‐level study examining the feasibility, benefits, opportunities and constraints of a proposed new interstate highway corridor. This initial study is expected to be completed later this year. Funding to construct a potential corridor has not been identified. In addition to the Arizona and Nevada departments of transportation, the Maricopa Association of Governments, Regional Transportation Commission of Southern Nevada, Federal Highway Administration and Federal Railroad Administration are partners in this study.

For more information about the I‐11 and Intermountain West Corridor Study and to sign up for updates, visit