Milestones:
PROJECT WEBSITE: I-495 / I-270 Managed Lanes Study project website
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
07/31/2025
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 Interior, Fish and Wildlife Service

Maryland
Department of the Interior, National Park Service
Department of the Army, US Army Corps of Engineers - Regulatory
Description:
The I-495/I-270 Managed Lanes Study limits will extend along I-495 from south of the American Legion Bridge to east of the Woodrow Wilson Bridge and along I-270 from I-495 to I-370, including the east and west I-270 spurs. This study will evaluate alternatives to accommodate existing and future traffic, improve trip reliability, expand travel options, accommodate homeland security, and improve the movement of goods and services.
-Issuance of Lead Agency Record of Decision
The responsible agency of this Action, Department of Transportation Federal Highway Administration, must indicate if Elevation Procedures were used for this extension.