Born out of the I-89 2050 Study, this assessment reviewed two interchange concepts, one in Milton near the West Milton Road bridge over I-89, and one in Bolton near the Bolton Valley Access Road. Both locations have previously underwent some form of study. However, the previous studies date back to the late 1980s/early 1990s. This assessment served to review modern geometric design standards and environmental requirements as they pertain to each conceptual interchange.

This report evaluates the possibility and function of a complete interchange at Exit 15 on Interstate 89. The current interchange configuration provides for movements to and from the south but not the north.

Supplemental Draft Environmental Impact Statement (SDEIS) for an Interstate 89 interchange in Bolton, VT at approximately mile marker 69.00 for the northbound access ramps and mile marker 71.00 for the southbound access ramps.

Draft Environmental Impact Statement (DEIS) for an Interstate 89 interchange in Bolton, VT at approximately mile marker 69.00 for the northbound access ramps and mile marker 71.00 for the southbound access ramps.