U.S. Highway 16A in Keystone

U.S. Highway 16A in Keystone Construction Location Map

Project Summary:

The primary purpose of the project is to replace the existing bridge with a box culvert. The bridge has reached the end of its expected service life.

Additional work includes minor approach grading for the new structure, intersection improvements, surfacing, pavement markings, signals, Americans with Disabilities Act (ADA) upgrades and erosion control. Pedestrian facilities will be improved to accommodate pedestrians on both sides of the structure.

A temporary restroom facility will be provided throughout construction.

Project Detour:

U.S. Highway 16A in Keystone Detour Map

Project Updates:

Coming Soon

Project Photos:

 

 

PCN: 05V8

Schedule:

  • Oct. 2026 - May 2027

Location:

  • U.S. Highway 16A at the intersection with S.D. Highway 40 in Keystone

Benefits:

  • Improved Structure
  • Surfacing
  • ADA Upgrades

Estimated Cost:

  • Coming Soon

Contractor:

  • Coming Soon