About the Project
The Vermont Agency of Transportation (VTrans) is improving the roadway along the US Routes 2/7 corridor, in the vicinity of I-89 Exit 16, to enhance mobility and safety in Colchester, Vermont. The project area extends from in the Colchester-Winooski town line north for approximately 1 mile to just beyond the intersection of Sunderland Woods Road at US Route 2/7. The core of the project is to reconfigure the existing tight diamond interchange to a Diverging Diamond Interchange at I-89 Exit 16. Other improvements include:
- Adding turn lanes at the Mountain View Drive, Hercules Drive and Rathe Road intersections.
- Construction of dedicated pedestrian and shared pedestrian/bicycle facilities.
- Modernizing traffic signals at South Park Drive, I-89 Exit 16, Mountain View Drive, Hercules Drive, Rathe Road and at Tigan Street in Winooski City.
The current interchange at Exit 16 is a grade separated tight diamond interchange with Interstate 89 crossing over US Routes 2/7 via two bridges. The existing interchange yields frequent traffic congestion, lengthy delays, and significant queuing during peak hours. These existing conditions are a safety concern with a high number of incidents, collisions and a lack of accommodations for non-motorized travel.
Educational DDI Video
Learn more about a diverging diamond interchange through our educational video.Watch Now
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VTrans welcomes your comments and questions. To submit a comment or question to the project team, please complete the comment form.Go to comment form
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