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Mount Idaho Grade Road Rehabilitation


This project is located in Idaho County, ID.  It was selected from the 2018 Idaho FLAP Call for Projects. 

Project Goal/Description:

The primary goal of the project is to rehabilitate the roadway surface with the use of a process known as Cement Recycled Asphalt Base.  The paved roadway currently varies between 22 and 28 feet wide, with approximately 1-foot shoulders on both sides of the road. The new design would maintain 26 feet of pavement with 2-foot gravel shoulders.  

Project Partners:

  • Grangeville Highway District
  • USDA Forest Service, Nez-Perce Clearwater National Forests
  • Federal Highway Administration - Western Federal Lands Highway Division

Project Map:

Anticipated Timeline

  • Project Development and Design: Spring 2022 – Summer 2024
  • Advertise and Award:  Anticipated 2025

Project Photos