Stage 4 Construction
In late July 2016, WSC anticipates beginning Stage 4 of construction. In this phase, inbound vehicles will be shifted to the new roadway on the upstream side of the bridge. Bicyclists, both inbound and outbound, will continue to use the sidewalk on the upstream side of the bridge and pedestrians will continue to use the sidewalk on the downstream side. Stage 4 work to rehabilitate the bridge under the old outbound Red Line tracks will take approximately eight months to complete. View the Stage 4 Graphic for travel space configuration along the Longfellow Bridge.
Stage 3 Construction
On February 11, WSC implemented the final configuration for Stage 3 of construction. The installation of the last stones of the upstream "Salt and Pepper" towers was completed the week of January 25. All staging around the towers has been removed and the concrete sidewalks and curbing adjacent to the towers have been replaced. Final adjustments included installing temporary fencing between the construction work zone and the upstream sidewalk, and marking the designated inbound and outbound bike lanes on the sidewalk. All bike travel, both inbound and outbound, now uses the sidewalk on the upstream side of the bridge. During this stage, inbound vehicles and all pedestrians will continue to use the downstream side of the bridge. Stage 3 work to rehabilitate the bridge under the old inbound Red Line tracks will take approximately eight months to complete. View the Stage 3 Graphic for travel space configuration along the Longfellow Bridge.
Bike Travel at Boston Approach
When approaching Charles Circle from the Longfellow Bridge, inbound bikes will come off the upstream sidewalk and head left across the inactive inbound roadway to join the existing bike lane at the Charles Street traffic signal. From the Charles Street traffic signal, bikes may go straight across to continue on Charles Street or go left to Cambridge Street.
To access the Longfellow Bridge from Charles Circle, outbound bikes will use the bike lane along Cambridge Street to turn left onto Charles Street, crossing under the MBTA Charles/MGH Station. Outbound bikes will then turn right to cross onto the sidewalk on the upstream side of the bridge.
View the Boston Approach graphic for inbound and outbound bike routes around Charles Circle. Signs and road markings will guide cyclists along these routes. Cyclists should use caution and watch for pedestrians in the crosswalks and construction vehicles accessing the bridge.
Bike Travel at Cambridge Approach
When approaching Kendall Square, outbound bikes will turn left and follow the existing sidewalk left towards Memorial Drive westbound. Outbound bikes will share the sidewalk with pedestrians along Memorial Drive westbound to cross under the Longfellow Bridge. Cyclists will then turn left to merge onto the exit ramp for Main Street.
To access the Longfellow Bridge from Kendall Square, inbound bikes will use the bike lane along Main Street to continue straight onto the upstream sidewalk.
View the Cambridge Approach graphic for inbound and outbound bike routes. Signs and road markings will guide cyclists along these routes. Cyclists should use caution and watch for pedestrians and turning vehicles.
Red Line Configuration
The construction of the temporary outbound Red Line track (called a "shoo-fly") on the roadway is complete. The outbound trains were shifted to the shoo-fly track and the inbound trains were shifted to the old outbound track in mid-January. Relocation of the large barrier fence along the track has also been completed. The shift allows WSC to rehabilitate the bridge under the current location of the MBTA inbound tracks.
Pedestrian Bridge Construction
MassDOT began construction of the new pedestrian bridge connecting the Esplanade with Charles Circle in November 2015. Work started on the Esplanade side of Storrow Drive to the west of the existing bridge. WSC will construct the new bridge during daytime hours from 7:00 AM to 5:00 PM. Periodic lane closures on Storrow Drive will be necessary to protect public safety. Closures for materials delivery and to move equipment will be scheduled for off-peak travel times to minimize traffic impacts. Vibration monitors will be placed near structures closest to the construction and noise will be monitored as necessary. The old pedestrian bridge will remain in service until the new one is complete, which is scheduled for 2017. View the Pedestrian Bridge Construction advisory for more information.