Milestones:
PROJECT WEBSITE: https://itdprojects.org/projects/i-15-us-20-connector/
All dates below are specific to the schedule of the Environmental Review and Permitting processes for this project.
ENVIRONMENTAL REVIEW AND PERMITTING STATUS
IN PROGRESS
ESTIMATED COMPLETION DATE OF ENVIRONMENTAL REVIEW AND PERMITTING
08/19/2026
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Surface Transportation
CATEGORY
Project Category
DOT Projects
Major Infrastructure Projects

LEAD AGENCY
Department of Transportation, Federal Highway Administration
Other Agencies with Actions or Authorizations:
Department of the Army, US Army Corps of Engineers - Regulatory
Department of the Interior, Fish and Wildlife Service

Department of Transportation, Federal Aviation Administration

States
Description:
The Idaho Transportation Department (ITD), in coordination with the Federal Highway Administration (FHWA), is conducting an Environmental Impact Statement (EIS) to evaluate potential improvements to provide safe and reliable travel between and along Interstate 15 (I-15) and U.S. Highway 20 (US-20).
-Section 106 consultation concluded (Agency Action)
The responsible agency of this Action, Department of Transportation Federal Highway Administration, must indicate if Elevation Procedures were used for this extension.