News Flash


Posted on: June 29, 2017

Cunningham Bridge Replacement Project - Traffic Alerts and Project Updates


Please note, this page was created in June of 2017 to post traffic alerts and project updates for the Cunningham Bridge project.  Each alert will be dated, with the most recent updates being listed on the top. 

September 21, 2018 -  Bridge “Soft Opening” at 5PM

  • The bridge is expected to be fully open (2 lanes and sidewalk) at the close of business today Friday 9/21 at 5PM.
  • Each weekday thereafter for approximately 2 months, a single lane closure will be in place using police details to complete abutment stone work, etc. 
  • There will also be a full road closure during that time for approximately 2 weeks to setup a crane and pull the sheet piling which has held back Little Harbor from the worksite for the past year.  
  • A ribbon cutting ceremony is being planned in the coming weeks. Details will be shared as it develops.

Bridge Soft Opening

May 25, 2018 - DANGER - ALERT - Cunningham Bridge is an active work zone.  While you may be curious, please DO NOT enter this area.  There is fencing in place to keep you safe from the hidden hazards that could potentially cause serious and/or life threatening injuries.  If you are caught on this site, you will be fined for trespassing!

May 4, 2018

  • Important Alert regarding this project - Please be advised-There will be temporary delays Tuesday, May 8th -Thursday, May 10th on route 3A, lower King Street, North Main Street, Highland Ave, Beach street and Atlantic Ave due to the movement of heavy equipment to Cunningham Bridge.  These delays will occur during the hours of 7:00am-4:00pm. Please plan travel accordingly. We apologize for any inconvenience while we continue improvements to our infrastructure.  Any questions, please contact DPW 781-383-0273

February 20, 2018

  • Drill rigs have been disassembled and removed from the job site. The granite faced curtain walls are expected to be fabricated and ready for delivery on Wednesday 2/21/18. The contractor is planning to begin to install the curtain elements as soon as the delivery is made.  All other work will be set aside to facilitate this task.
  • The contractor has made good progress on the schedule over the last couple of weeks. Dive operations to secure the underwater tremie anchors were successful and the cofferdam has been pumped dry.  Latent sludge cleanup of material around the tremie will begin in the next several days.
  • Contractor continues to wait on shop drawings from MassDOT for the reinforcing bars and the pedestrian railings. Once approved, fabrication of the pedestrian rail could take up to 3 months.



February 2, 2018


North Abutment Tremie anchor drilling activity 


Laborers grouting the South Abutment granite facing panels under heated enclosure.


Icy conditions of the North Abutment cofferdam, nearing completion of excavation operations. 

Icy Conditions

Stockpiles of excavated spoils from the North Abutment cofferdam, awaiting trucking for disposal.

December 22, 2017

·        The project is proceeding with typical challenges in the field as expected. The South side abutment is at about 60% complete and the North side is at about 40% complete.

·        Retaining walls are being poured on the south side of the bridge.

o  Progress has been made on 9 sections of the wing walls.

·        Concrete is being heated on site in cold weather and takes about 7 days to cure. High performance concrete is being utilized for this job.

·        The new wing wall panels are being pre-fabricated and delivery is expected in about 3 weeks.

·        Once the wing walls are placed, the precast backing will be installed.

·        The granite facing for the south abutment panels is in fabrication and will be installed soon.

November 3, 2017 

  • South West quadrant Tremie Foundation has been poured
  • Layout complete for S. Abutment Tremie pour
  • North Abutment cofferdam sheet pile has been set
  • Continuing with brace work before additional excavation can be done




September 29, 2017

 Some highlights including a photo regarding the Cunningham Bridge Project:

  • Sheet pile driving continues on both the North and South sides of the bridge
  • Northern abutment excavation is nearly complete to be followed by cofferdam installation
  • Once the excavation is complete, a concrete tremie will be poured in place to support the concrete footing which will follow
  •  Contractor has installed vibration monitors on both the North and South sides of the bridge 


September 25, 2017 -   Cunningham Bridge Design Options:

The rendering below is the original design of the Cunningham Bridge with concrete as originally proposed by Mass DOT:

Street 1-Concrete

The two renderings below show the new option as proposed by Mass DOT that adds a fishing and viewing location:

BR-2 Rendering 1

BR-2 Rendering 2

Older Updates

Cunningham Bridge (Atlantic Avenue) Project Updates

August 31, 2017- The bridge demolition is on schedule for Tuesday September 5, 2017.  Work will begin at 7:00am-5:30pm daily. 

August 18, 2017- Water pipe bypass complete.  Pressure testing and  disinfection will continue into next week. Sandbags will be put in place for the coffer dam work next week. Bridge shut down is on-schedule for September 5, 2018 for demolition. Please note there will be no vehicular or pedestrian traffic through this area during bridge closure.

August 11, 2017 - The temporary water main bypass work will continue into next week.  The Town has also hired a liaison to enhance communications and oversight on this important project. 

August 4, 2017 - The gas main being tied in is now complete.  The water main change over will occur in the next week.

July 28, 2017 - Gas connections and waterline work is ongoing on the site.  Shielding under the bridge is 100% complete.  Shielding on the east and west side of the bridge continues.

July 17, 2017 -To see the install of the utility bridge, please click here.


Media Alerts Regarding Detour Information:

Mass DOT Media Release with Alternate Route Information 

The Massachusetts Department of Transportation Highway Division District 5 has announced that Atlantic Avenue over Little Harbor Inlet in Cohasset will be temporarily closed to vehicular traffic for one night on Tuesday, July 11.   This portion of roadway will be closed from 8:00 p.m. on July 11 to 5:00 a.m. on July 12.  The closure is necessary to allow for installation of the temporary utility bridge.

The detour routes are as follows:  

From the west side of Atlantic Avenue over Little Harbor Inlet:

·       Follow Atlantic Avenue to Nichols Road
·        Left on Nichols Road and follow to Jerusalem Road 

·        Left on Jerusalem Road and follow to North Main Street
·        Left on North Main Street and follow to Beach Street
·        Left on Beach Street

From the east side of Atlantic Avenue over Little Harbor Inlet:  

·        Follow Beach Street to North Main Street  
·        Right on to North Main Street and follow to Jerusalem Road  

·        Right on to Jerusalem Road and follow to Nichols Road  
·        Right on to Nichols Road and follow to Atlantic Avenue  
·        Right on to Atlantic Avenue

MassDOT advises motorists to seek alternate routes during these times.  

All scheduled work is weather dependent and/or may be impacted should any sort of emergency situation occur.





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