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Interstates 155, 55, 75 and 26 Multimodal Corridor Study

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As identified in the Tennessee Long-Range Transportation Plan, the strategic highway system includes routes the state considers critical to statewide mobility and regional connectivity. The transportation plan classified routes needing improvement, while protecting and maximizing capacity over the next decade. Interstates 55, 75 and 26 are a part of this system and classification.  Beginning in September 2018, TDOT will work with AECOM Technical Services, Inc. to complete an 18-month study of the I-55/75/26 corridors, which will also identify short-and long-term solutions for improving problem spots along the entire corridors.  All of the study documents and reports will be available in the I-55/75/26 Corridor Study Library. Click here for interstates 155, 55, 75 and 26 Corridor Study Library.

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What is the study area?
The study area for the I-55/75/26 Multimodal Corridor Study stretches across the State of Tennessee and includes the entire lengths of I-55, I-75 and I-26 from state line to state line.  The study, which also includes the I-155 corridor, includes more than 200 miles of interstate.  The study area for these corridors contains 22 counties with cities that depend on these corridors for commerce, tourism and daily commuting.

Click maps below to see study areas:

              I-55 (13 miles)

              I-155  (16 miles)

              I-75 (162 miles)

              I-26 (54 miles)

              Interactive map of all areas

What is the purpose of the study?
The results of the study provide a prioritized listing of potential multi-modal projects that can be considered by TDOT or by local planning organizations.

When is the expected end of the study?
Study is expected to be completed by March, 2020.

What are some expected study outcomes?
The study will also investigate a range of multimodal solutions to address future travel demands, with emphases on managing congestion, improving safety, maximizing the potential for freight diversion and preserving/enhancing the corridor's economic benefits.

Upcoming Community Meetings
Information regarding dates, locations and times will be posted when scheduled.

TDOT’s Office of Community Transportation will be hosting:

Chattanooga (I-75) on Thursday January 16, 2020
    5:30 p.m. until 6:30 p.m.
    TDOT Region 2 Auditorium
    7512 Volkswagen Drive
    Chattanooga, TN 37416

Past Meetings:

 Kingsport (I-26) on Tuesday January 7, 2020
     5:00 p.m. until 6:00 p.m.
     V.O. Dobbins, Sr. Complex
     Eastman Foundation Conference Room
     301 Louis Street
     Kingsport, TN 37660
Click here to view the Power Point Presentation

Dyersburg (I-155) on Thursday June 13, 2019
     5:30 p.m. to 7:00 p.m.
     Dyersburg State Community College – Student Center
     1510 Lake Road
     Dyersburg, TN  38024
  Click here to view the Power Point Presentation

Memphis (I-55) on Thursday May 16, 2019
    5:30 p.m. to 7:00 p.m.
    Whitehaven Community Center
    4318 Graceland Drive
    Memphis, TN 38116
Click here to view the Power Point Presentation

Johnson City (1-26) on Thursday, May 9, 2019
    5:30 p.m. to 7:00 p.m.
    Memorial Park Community Center
    510 Bert Street
    Johnson City, TN 37601
Click here  to view the Power Point Presentation

Knoxville  (I-75) on Thursday, April 25, 2019
    6:00 p.m. to 7:30 p.m.
    East TN Historical Society
    601 Gay St. Knoxville, TN 
Click here  to view the Power Point Presentation 

For information about Public Meetings, please contact by email or phone 901-684-5447.

To view timeline of the study:

How can you help?
TDOT is dedicated to managing congestion and improving safety along the I-55/75/26 corridors. Both technical analysis and input from local officials and individuals are needed to provide as much data as possible for the study. We encourage you to visit our interactive mapping tool. The tool allows you to provide feedback on segments and intersections/interchanges along the corridor that you use regularly. The project team will use this information to help identify deficiencies along the route and guide the final recommendations for the study. You may also go directly to the following SurveyMonkey link to provide feedback.

For additional information contact by email or by phone 615-253-2418.