Vermont’s First Diverging Diamond Interchange

The Vermont Agency of Transportation (VTrans) is improving the roadway along the U.S. Routes 2/7 (U.S. 2/7) corridor, in the vicinity of Interstate 89 (I-89) Exit 16, to enhance mobility and safety in Colchester, Vermont. The project area extends from the Colchester-Winooski town line north for approximately 1 mile to just beyond the intersection of Sunderland Woods Road at U.S. 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.

Learn more about this and other improvements

Image of Interchange

Project Updates

Weekly Construction Update - Friday, January 16, 2026

DATE: Friday, January 16, 2026

SPECIAL ANNOUNCEMENT: In observance of Martin Luther King Jr. Day, crews will be offsite on Monday, January 19, 2026.

TRAFFIC IMPACT AND DURATION: From Tuesday, January 20, through Friday, January 23, between 7 AM and 3 PM, lane closures and lane shifts will be in effect on Lower Mountain View Drive and Upper Mountain View Drive near their intersection with U.S. Routes 2/7 (U.S. 2/7). Later in the week, there is potential for a lane closure and shift on the east side of U.S. 2/7 near Starbucks, just south of Lower Mountain View Drive.

Independent utility companies will periodically be on-site conducting utility work along U.S. 2/7 between the Winooski town line and Sunderland Woods Road under lane closures.

Motorists should expect significant delays when traveling through the work zone and along adjacent roadways. Please plan ahead, leaving plenty of additional time to get to and from your destination. Whenever possible, consider alternative routes or other forms of transportation, such as carpooling, ridesharing, transit, biking, or walking. Drivers should slow down, use caution, and follow flaggers and road signs.

CONSTRUCTION ACTIVITIES: Next week, beginning Tuesday, crews will continue removing ledge and constructing a retaining wall on Lower Mountain View Drive near the U.S. 2/7 intersection. On Upper Mountain View Drive, they will shape a grass swale and clean up ledge following hammering work. Later in the week, the contractor may also begin stripping topsoil and grass and removing ledge along U.S. 2/7 near Starbucks, just south of Lower Mountain View Drive.

Independent utility work will periodically take place along U.S. 2/7 between the Winooski town line and Sunderland Woods Road.

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Weekly Construction Update - Friday, January 9, 2026

DATE: Friday, January 9, 2026

TRAFFIC IMPACT AND DURATION: From Monday, January 12, through Friday, January 16, between 7 AM and 3 PM, lane closures and lane shifts will be in effect on Lower Mountain View Drive and Upper Mountain View Drive near their intersection with U.S. Routes 2/7 (U.S. 2/7). A lane closure and shift will also be in effect on the west side of U.S. 2/7 just south of Rathe Road.

Independent utility companies will periodically be on-site conducting utility work along U.S. 2/7 between the Winooski town line and Sunderland Woods Road under lane closures.

Motorists should expect significant delays when traveling through the work zone and along adjacent roadways. Please plan ahead, leaving plenty of additional time to get to and from your destination. Whenever possible, consider alternative routes or other forms of transportation, such as carpooling, ridesharing, transit, biking, or walking. Drivers should slow down, use caution, and follow flaggers and road signs.

CONSTRUCTION ACTIVITIES: Next week, crews will be hammering ledge in three areas: along Lower Mountain View Drive near U.S. 2/7 to install underdrain, along Upper Mountain View Drive near U.S. 2/7, and on the west side of U.S. 2/7 just south of Rathe Road, where they will also be excavating blasted material within the future grass channel as they progress north toward Rathe Road.

Independent utility work will periodically take place along U.S. 2/7 between the Winooski town line and Sunderland Woods Road.

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Weekly Construction Update - Wednesday, December 31, 2025

DATE: Wednesday, December 31, 2025

SPECIAL ANNOUNCEMENT: In observance of the New Year holiday, crews are off-site as of 3 PM yesterday, Tuesday, December 30, 2025. Work will resume at 7 AM on Monday, January 5, 2026.

TRAFFIC IMPACT AND DURATION: From Monday, January 5, through Friday, January 9, between 7 AM and 3 PM, lane closures and lane shifts will be in place on Lower Mountain View Drive and Upper Mountain View Drive near their intersection with U.S. Routes 2/7 (U.S. 2/7). A lane closure and shift will also be in effect on the west side of U.S. 2/7 just south of Rathe Road.

Independent utility companies will periodically be on-site conducting utility work along U.S. 2/7 between the Winooski town line and Sunderland Woods Road under lane closures.

Motorists should expect significant delays when traveling through the work zone and along adjacent roadways. Please plan ahead, leaving plenty of additional time to get to and from your destination. Whenever possible, consider alternate routes or other forms of transportation such as carpooling, ridesharing, transit, biking, or walking. Drivers should slow down, use caution, and follow flaggers and road signs.

CONSTRUCTION ACTIVITIES: Crews will continue installing drainage infrastructure on Lower Mountain View Drive and will hammer ledge on Upper Mountain View Drive near their intersections with U.S. 2/7. Stormwater ditching work will also take place on the west side of U.S. 2/7 just south of Rathe Road, with the possibility of additional ledge hammering in this area.

Independent utility work will periodically take place along U.S. 2/7 between the Winooski town line and Sunderland Woods Road.

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Weekly Construction Update - Tuesday, December 23, 2025

DATE: Tuesday, December 23, 2025

SPECIAL ANNOUNCEMENT: In observance of the Christmas and New Year holidays, crews will be off-site from today, December 23, at 3 PM through Monday, December 29, at 6 AM, and again from Tuesday, December 30, 2025, at 3 PM through Monday, January 5, 2026, at 6 AM.

TRAFFIC IMPACT AND DURATION: On Monday, December 29, and Tuesday, December 30, between 6 AM and 3 PM, lane closures and shifts will be in effect on U.S. Route 2/7 (U.S. 2/7) between Mountain View Drive and Rathe Road and along Lower Mountain View Drive near its intersection with U.S. 2/7.

Independent utility companies will periodically be on-site conducting utility work along U.S. 2/7 between the Winooski town line and Sunderland Woods Road under lane closures.

Motorists should expect significant delays when traveling through the work zone and along adjacent roadways. Please plan ahead, leaving plenty of additional time to get to and from your destination. Whenever possible, consider alternate routes or other forms of transportation such as carpooling, ridesharing, transit, biking, or walking. Drivers should slow down, use caution, and follow flaggers and road signs.

CONSTRUCTION ACTIVITIES: Crews will continue drainage work along U.S. 2/7 between Mountain View Drive and Rathe Road and on Lower Mountain View Drive near its intersection with U.S. 2/7.

Independent utility work will periodically take place along U.S. 2/7 between the Winooski town line and Sunderland Woods Road.

Read more

Driving Animations

Experience Exit 16 DDI

Driving simulation traveling on US 2 West / 7 North through the DDI

Aerial view of the operating diverging diamond interchange at I-89 Exit 16

Driving simulation exiting I-89 onto US 2 East/7 South via Exit 16

Driving simulation traveling on US 2 East/7 South through the DDI

Driving simulation exiting I-89 onto US 2 West / 7 North via Exit 16