[4] The section from there to New Marlborough (which is a concurrency with Route 183) primarily takes a southeastern path that passes several stretches of farmland.

[3] During this stretch, there is a brief concurrency with Route 8 in Sandisfield to cross the Farmington River's west branch.

[2] It has five exits before terminating in a rotary that is served by an interchange from U.S. Route 5.

[1] In 1991, work to extend the freeway to Route 187 began, with the new section opening in 1995.

[2] A further extension to Southwick has been proposed, but it was put on hold by then-Governor Mitt Romney in June 2005; nevertheless, Agawam's city council continues to urge the state to construct the extension.