Construction Notice

April 23, 2024

400 South (SR-186) Asphalt Rehabilitation Project


The Utah Department of Transportation (UDOT) will rehabilitate the asphalt pavement on 400 South (SR-186) from State Street to 1300 East in Salt Lake City. The project will start April 29 and last through August 2024 and also includes upgrading selected pedestrian sidewalk ramps to meet current Americans with Disabilities Act (ADA) standards. 


Key Highlights:


This project involves removing old asphalt and placing new asphalt pavement to enhance this crucial east-west route which links the city with I-15, the University of Utah, and other key locations. It involves:


  • ADA Ramp Upgrades: Modifications ensure sidewalk transitions are accessible to everyone.
  • Adjusting Manholes: Lowering utility accesses (ie. manholes and water valves) to allow for milling.
  • Milling: Removing old asphalt which will make the roadway rough temporarily.
  • Paving: Applying new asphalt for a smooth finish.
  • Raising Manholes and Valves: Adjusting utility access points to the new roadway surface.
  • Roadway Striping: Applying final paint for striping/crosswalks/messages to new pavement.


Schedule & Impacts:



  • Pedestrian Ramps: Daytime work Monday through Friday 7am to 7pm.
  • Roadway: Nighttime work Sunday through Thursday 8pm to 7am.
  • Temporary sidewalks closures during ped ramp demolition and reconstruction.
  • Lane shifts and temporary lane closures during construction. 
  • Nearby residents will notice construction-related noise and vibration.

Contact the Team

This project has a dedicated Public Involvement Team to answer questions or concerns you may have throughout construction. If you are interested in joining our mailing list to receive weekly construction activity updates, contact our team using the information below:


Project Hotline - 800-292-3557

Email - 400SouthImproved@utah.gov

Project Website: https://publicinput.com/400SouthImproved

There are several other regional projects taking place this construction season.

For the latest information regarding this and other UDOT construction

projects, download the free UDOT Traffic app on any iPhone or

Android device or visit udottraffic.utah.gov.