Post Content

longfellow_LgMore than 100 years after the last stone was set on the “salt and pepper” towers of the Longfellow Bridge, MassDOT will begin dismantling the towers for storage, cleaning, and repair as part of the Longfellow Bridge Rehabilitation Project.  The work is anticipated to begin later this week, and is weather dependent.

The tower dismantling work will take place using a barge-mounted crane on the Charles River. On Thursday, March 6, MassDOT’s contractor, White-Skanska-Consigli JV, will begin preparations by moving into place the crane via barge from the staging area in Charlestown to the upstream side of the bridge.  An ice-breaker will precede the barge to provide an unobstructed path.  Once the crane is in position at the Cambridge tower the granite stones will be removed and loaded on a barge. The stones will be taken to the contractor’s staging area for cleaning, storage, and repair. 

The towers will be dismantled to sidewalk level only.  All remaining pier granite below the sidewalk will be restored in place.  During stone removal, waterway access will be partially restricted through span 7  immediately adjacent to the tower.  Booms and lighting will be deployed in accordance with US Coast Guard requirements for boater safety.

Along with the tower granite removal, the contractor will demolish a concrete liner to expose the inner face of the tower stonework. The concrete demolition work will take place from staging set within the towers and will not be visible to pedestrians from street level. Once the Cambridge-side tower is dismantled, the contractor will start work on the adjacent upstream Boston tower, Pier 5. The two downstream towers will be dismantled and restored when that side of the bridge is rehabilitated during the final phase of construction, which is planned to begin in fall 2015. 

As conditions dictate, the uppermost stones comprising the tower roof may need to be removed using a mobile crane situated on the bridge deck. In this case, the work will be done at night, during MBTA Red Line non-service hours.

The contractor plans to rebuild the iconic towers after seismic reinforcement construction is completed within the bridge tower piers. The fully restored upstream “salt and pepper” tower stonework is planned to be reassembled on the bridge later this year.

To learn about the Longfellow Bridge Rehabilitation Project and construction process, view this animation. For more information on the project, visit the website: www.mass.gov/massdot/longfellowbridge

Written By:

Recent Posts

Baker-Polito Administration Authorizes MBTA Control Board Extension, Board and Staffing Transitions Announced posted on May 25

Baker-Polito Administration Authorizes MBTA Control Board Extension, Board and Staffing Transitions Announced

Acting to maintain momentum toward improving the MBTA for riders, Governor Charlie Baker, Lt. Governor Karyn Polito and Transportation Secretary and CEO Stephanie Pollack today announced that the MBTA’s Fiscal and Management Control Board (FMCB) will extend its governance by two years as allowed under   …Continue Reading Baker-Polito Administration Authorizes MBTA Control Board Extension, Board and Staffing Transitions Announced

Sumner Tunnel Traffic Adjustments posted on May 24

Sumner Tunnel Traffic Adjustments

MassDOT has announced that beginning on Thursday morning, May 25, it will be implementing the following adjustments to the traffic pattern in the area of the entrance of the Sumner Tunnel in order to improve traffic flow as construction activities continue for the ongoing toll   …Continue Reading Sumner Tunnel Traffic Adjustments

MassDOT: Plan Ahead for Memorial Day Travel posted on May 24

MassDOT: Plan Ahead for Memorial Day Travel

MassDOT advises Memorial Day holiday travelers to plan ahead, utilize MassDOT’s many travel “real time” tools and use public transportation if possible to travel between destinations. “We know from past years that travelers can expect heavy traffic volumes during Memorial Day weekend and should accordingly   …Continue Reading MassDOT: Plan Ahead for Memorial Day Travel