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

9/22/2023

Weekly Construction Update 9/22/2023

DATE: Friday, September 22, 2023

TRAFFIC IMPACT AND DURATION:

Monday, September 25, through Friday, September 29, during the daytime hours of 6:00 a.m. – 4:00 p.m., the outermost northbound lane of U.S. 2/7 will be closed for independent utility work. Motorists are strongly encouraged to use caution while driving through the work zone and pay close attention to signage as traffic patterns will change.

CONSTRUCTION ACTIVITIES:

Next week, S.D. Ireland crews will be off-site. During daytime hours, Vermont Gas Systems will be conducting independent utility work along the east side of U.S. 2/7 under a single-lane closure.

9/15/2023

Weekly Construction Update 9/15/2023

DATE: Friday, September 15, 2023

TRAFFIC IMPACT AND DURATION:

Monday, September 18, through Friday, September 22, during the daytime hours, 6:00 a.m. – 3:00 p.m., the outermost southbound lane and the outermost northbound lane of U.S. 2/7 between South Park Drive and Mountain View Drive will be closed. Only a single travel lane will be closed in each direction during the daytime hours. Intermittent lane width reductions will be in effect along the Interstate 89 (I-89) northbound onramp. Interstate ramp access and side streets will be maintained throughout this work. Motorists are strongly encouraged to use caution while driving through the work zone and pay close attention to signage as traffic patterns will change. All users should expect delays and plan ahead.

CONSTRUCTION ACTIVITIES:

Next week, during daytime hours, crews will work along the west side of U.S. 2/7 between South Park Drive and Mountain View Drive conducting shaping work, installing curb near Whitcomb Street, and removing the remaining ledge near the I-89 northbound onramp under single lane closure and lane width reductions. In addition, crews will install sidewalk along the east side of U.S. 2/7 near its intersection with South Park Drive in the vicinity of McDonald's under a single lane closure.

9/7/2023

Weekly Construction Update 9/8/23

Weekly Construction Update 9/8/23

DATE: Friday, September 8, 2023

SPECIAL NOTICE:
Monday, September 11, during the daytime hours, there is potential for a single lane closure of the outermost northbound lane of U.S. 2/7 in front of Burger King near South Park Drive to facilitate the relocation of independent utilities. A single lane of traffic will be maintained in each direction at all times.

TRAFFIC IMPACT AND DURATION:
Monday, September 11, through Friday, September 15, during the daytime hours, 6:00 a.m. – 3:00 p.m., the outermost southbound lane of U.S. 2/7 between South Park Drive and Mountain View Drive will be closed. Only a single travel lane will be closed in each direction during the daytime hours. Side street and interstate ramp access will be maintained throughout this work. Motorists are strongly encouraged to use caution while driving through the work zone and pay close attention to signage as traffic patterns will change. All users should expect delays and plan ahead.

CONSTRUCTION ACTIVITIES:
Next week, during daytime hours, crews will continue to construct the western retaining wall that will run along the west side of U.S. 2/7 outside of the I-89 bridge piers. Crews will continue installing curb and guardrail, and conducting shaping work along U.S. 2/7 between South Park Drive and Mountain View Drive.

6/27/2023

DAILY BLASTING UPDATE

Daily blasting operations for Contract 1 of the Exit 16 DDI project have been completed. At this time, no additional blasting activities are anticipated for this construction season, however, this is subject to change based on field conditions. There is the potential for some intermittent blasting to take place this construction season should crews encounter ledge beneath the roadway surface that cannot be removed with a hydraulic hammer.

Please check back for additional information.