The Utah Department of Transportation (UDOT), in cooperation with the City of Payson, has prepared an Environmental Impact Statement (EIS) that evaluated the interchange at Main Street (SR-115) and I-15. This study analyzed transportation conditions and is recommending potential solutions to meet current and future needs.

Record of Decision

UDOT released the Record of Decision (ROD), which is the final decision regarding the project and approves UDOT's selection of Alternative C1: Braided Ramps as the Preferred Alternative. This alternative includes:
  • Improvements to the existing interchange at Main Street
  • A new interchange approximately 0.7 miles to the northeast
  • A new five-lane arterial road (Nebo Beltway) connecting the new interchange to S.R. 198
  • Braided ramps connecting the Main Street and Nebo Beltway interchanges (i.e., ramps that cross over each other)
  • Widen Main Street to five lanes at the interchange and tapered to its current configuration south of 600 North

The ROD includes responses to substantive comments received regarding the Final EIS. The ROD is available for review here.

Next Steps

Currently, this project is not funded for final design or construction. The ROD does provides the opportunity for local government entities to plan for future improvements. Once funding is available, UDOT can move forward with final design, right-of-way acquisition, and construction.
Contact the study team with any questions or concerns via email at or phone at (801) 859-3770.
The environmental review, consultation, and other actions required by applicable Federal environmental laws for this project are being, or have been, carried-out by UDOT pursuant to 23 U.S.C. 327 and a Memorandum of Understanding dated January 17, 2017, and executed by FHWA and UDOT.


Below is UDOT's estimated timeline for the EIS process.


Late 2014


Early 2015

Identify and gather public input regarding items to consider in the environmental study.


Mid 2015 to Summer 2017

Screen alternatives based on their potential impacts and how they meet the purpose and need statement; gather public input on the alternatives and the analysis metrics.

Draft EIS Published

Fall 2017

Report findings and present Locally Preferred Alternative.


Fall 2017

Members of the public invited to provide comments on the DEIS, review the document, and have questions answered by the project team.


Fall 2017

This period extends a minimum of 45 days after the release of the DEIS, providing members of the public the opportunity to submit comments in response to the DEIS via mail, email, or other means.


November 2018

The final EIS includes responses to all comments received for the DEIS, including feedback from agencies, key stakeholders, and the public. There will be public comment period following the publication of the final EIS.


Feb 2019

The Record of Decision is UDOTs final decision regarding the project. It also identifies mitigation requirements and other commitments.

The schedule has been revised throughout the course of this study. This timeline reflects the most current plan.
Current Phase
* Public Meeting and Review Period