Massachusetts bypass operation fuels success for transit authority with the help of a solid pump strategy.
Boston, Massachusetts is one of the largest metropolitan areas in the United States. The city itself contains over 600,000 people, and with all of the surrounding cities taken into account, the population of the area exceeds 4 million. The city also attracts more than 12 million visitors each year who come to Boston to experience the unparalleled history and diversity that the area offers, including the ever-popular Boston Commons, South End and the famous Fenway Park. With so much history and attraction, there’s no wonder transportation remains a large concern.
The Massachusetts Bay Transportation Authority (MBTA) operates the nation's oldest and 4th largest transportation system in the country. “The T”, as it’s known locally, was created in 1964 to run the already functioning transit system. Today it provides transportation to the entire greater Boston area by means of subways, busses, ferries and the commuter rail lines. The commuter rail provides train service to outlying points west, north, and south of Boston, including Providence, Rhode Island. The commuter rail is owned by the MBTA, but managed and operated by the Massachusetts Bay Commuter Railroad Company (MBCR).
When the MBTA made the decision to extend the existing commuter rail line down the south shore, from Braintree, all the way to Scituate, it became evident that the master plan would involve far more than simply laying down 18 miles of new track. The project, referred to as the Greenbush project, a $250 million project, faced a variety of challenges almost immediately.
One of many concerns was a decision regarding the functionality of a stretch of 48-inch pipe that belonged to the Massachusetts Water Resource Authority. As it turned out, the pipe was positioned at the exact point where a portion of the extended rail line was planned. This stretch of pipe was part of a combined sewer line, a system that allows general public and industrial waste to be combined with ground water runoff when conventional sewer systems are at capacity during times of heavy rainfall.
In order to complete the rail extension as planned, the sewer line would have to be bypassed and rebuilt at a lower elevation without disturbing the local population of the area or causing environmental impact. There was a tremendous amount of water that would have to be re-routed before re-construction of the pipe could begin. Cashman / Balfour-Beatty (CBB) the company entrusted with completing the massive undertaking, contacted Baker Pumps.