the dighton and somerset railroad was a railroad that ran between fall river, massachusetts and braintree, massachusetts. it opened in 1866; from the 1890s to the 1930s and again in the late 1950s, it was the primary rail route from boston to the south coast. passenger service ended in stages with the final regular service in 1958, though freight service on two short segments continues into the 21st century. mbta commuter rail service is proposed to be extended onto the northern part of the line around 2030 as part of the south coast rail project.