What Is The Busiest Intersection in Chelmsford?

Recently a reader asked us what is the busiest intersection in Chelmsford, and we have the answer, although there is a little wiggle room for debate.

Every few years, the Northern Middlesex Council of Governments does traffic counts for busy intersections in each of their towns, including Chelmsford.

When it comes to the Annual Average Daily Traffic Count (AADT), or the daily average of vehicles over a 24-hour period in a specific spot over a particular year, the busiest intersections are on highways.

In 2011, I-495 just south of Route 4 had over 108,000 AADT, followed by just over 87,000 in 2011 the Route 3 at the Lowell border (just past the Chelmsford Street exit) and just over 25,000 on the Lowell Connector just south of 495.

When it comes to surface roads, here were the busiest according to the NMCOG traffic counts.

Keep in mind, this isn't every single intersection in town, only the ones NMCOG studied.

Intersection AADT Latest Count Year Chelmsford Street east of Golden Cove Road/Steadman Street 15,080 2011 Chelmsford Street north of I-495 ramp 14,800 2006 North Road north of Technology Drive 14,700 2011 Groton Road at the Westford border 13,674 2012 Steadman Street at the Lowell border 8,700 2009