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Mattapan Line Transformation

Updated on June 18, 2019

Trolley on Mattapan Line

About the Project

We’re making improvements on the Mattapan Line to ensure accessible, reliable, and modern service for Dorchester, Mattapan, and Milton for years to come. 

The Mattapan Line serves 6,600 riders every day, and the historic 1940s trolley fleet runs on 2.6 miles of track between Ashmont, on the Red Line, and Mattapan Station. The route has 8 stations and connects riders to many local bus routes and the Neponset River Trail.

Why We’re Doing This Work

At public meetings in Dorchester, Mattapan, and Milton, residents talked to us about the issues that are important to them, including accessibility, safety, and the historical significance of the existing Presidents’ Conference Committee (PCC) trolleys. 

Future improvements to the Mattapan Line will incorporate and reflect that feedback, and allow for the continuation of accessible, reliable, and safe service.

In the next 8-10 years, we will make improvements to the existing fleet and infrastructure. Additionally, we are we are considering substantial changes we might make beyond the next decade, including options for a new fleet, and the infrastructure needed to support that fleet.

What You Can Expect During This Work

The transformation project has 3 phases, and Phase 1 has begun.


Contact Information

For all queries and comments related to the Mattapan Line Transformation, please contact