Tier 2 Environmental Assessment
In July 2014, the team began a Tier 2 Environmental Assessment, which included the following assumptions:
- Current number of regular lanes will be maintained during rush hours
- Rapid bus service will be advanced along with other bus service recommendations from the 2009 I-66 Transit / Transportation Demand Management (TDM) Study
- Safety and operational improvements can move forward independently or in conjunction with capacity improvements
- Other concepts, including the consideration of a Metrorail extension in the existing right-of-way, will not be precluded
- Viable options must be feasible to implement in a reasonable timeframe
The Tier 2 Environmental Assessment studied a combination of improvement concepts from the Tier 1 EIS including: two express lanes, three regular lanes and rapid bus service, in addition to other safety and operational improvements. Results of this Environmental Assessment were presented to the public in spring 2015, and included evaluations of site-specific conditions and potential effects the proposed improvements would have on air quality, noise, neighborhoods, parks, recreation areas, historic properties, wetlands and streams.
The Virginia Department of Transportation (VDOT) received a Finding of No Significant Impact (FONSI) from the Federal Highway Administration (FHWA) for the Transform 66 Outside the Beltway improvements in June 2016. The FONSI was issued after review of VDOT's Tier 2 Final EA.