The Port Infrastructure Improvements Project

Notice: PL 6 Stormwater Tank Project- Mass Ave/Sidney St. Update

This is an update on the progress of construction impacting Mass. Ave. as part of the City’s PL6 Stormwater Tank Project. As per the notice distributed last summer, the City of Cambridge engaged the firm of Skanska USA Civil for the construction of the first phase of The Port Infrastructure Improvements Project. This first phase, known as the “PL6 Stormwater Tank Project”, includes the construction of an underground 390,000 gallon storage tank and pump station, which will be located beneath a portion of the City’s Parking Lot 6 on Bishop Allen Drive.

In addition to the tank and pump station, the PL6 Project includes construction of a utility tunnel beneath the MBTA Red Line to connect the tank to the existing Mass. Ave. storm drain. This work, along with associated utility relocations and surface restoration, has required construction work in Massachusetts Avenue between Douglass and Sidney Streets, and this work began in August 2018.


What has been going on inside the barriers on the north side of Mass Ave?
  • The most technically challenging portion of the project has been the installation of a 6-foot diameter utility tunnel beneath the MBTA Red Line tunnel. The utility tunnel will carry stormwater and sanitary sewage flows away from the Port Neighborhood to existing pipes in Mass. Ave. which have more carrying capacity, thus mitigating flooding which has historically been a problem in The Port. The tunneling work required construction support zones both in the former Parking Lot 6, as well as on Mass Ave near Lafayette Square.
  • We are pleased to report that the tunneling operation was successfully completed in Spring 2019. The tunnel is now being outfitted with the smaller individual stormwater and sewer carrying pipes, and these will be connected to existing pipes at Mass Ave, and at Sidney Street, requiring excavation in Mass Ave and Sidney Street (see below).
  • Note: The barriered work zone near Lafayette Square is still required to support the ongoing construction described below, and will be in place until early 2020.
WHEN WILL THE NORTH SIDEWALK OF MASS AVE BE RE-OPENED?
  • The City project has been coordinating closely with the Market Central (formerly Mass+Main) project on the utility and surface work along the Market Central frontage. It is anticipated that the permanent sidewalk along Market Central between Sidney and Douglass Streets will be opened for pedestrian use around Labor Day 2019. This will also allow the westbound bicycle lane to be restored.

WHAT IS THE CURRENT AND UPCOMING WORK ALONG MASSACHUSETTS AVENUE AND SIDNEY STREET? (NOTE – ALL SCHEDULE DATES ARE APPROXIMATE, AND THE CITY WILL ISSUE PERIODIC UPDATES AS MORE DETAILED TIME FRAMES BECOME KNOWN):

  • Late June 2019: Excavation of test pits at the Mass Ave/Sidney Street intersection to verify locations of existing utilities. This work was required to finalize a clear path for the proposed sewer pipe which will run from the completed utility tunnel to Sidney Street.
  • July-September 2019: Installation of sewer pipe along the north side of Mass Ave, beginning at Sidney Street and running westward to the current barriered work zone. The traffic pattern will remain largely as it exists today, with one traffic lane in each direction; and a shared westbound bike/vehicle lane. There will be additional specific signed revisions and restrictions to turn lanes, parking, etc. as the work progresses westward.
  • September-October 2019: Additional test pits along Sidney Street to finalize a clear path for the proposed sewer pipe which will run from the north side of the Mass Ave/Sidney intersection, south along Sidney Street.
  • October-November 2019: Installation of sewer pipe from the north side of Mass Ave/Sidney intersection, to a point on Sidney Street approximately 50 feet south of Mass Ave. That will be the extent of work on Sidney Street for this project.
  • November 2019: Installation of a large utility structure in Mass Ave on the roadway side of the current barrier arrangement. This will require a 2-3 week period where the roadway must be shifted further south, resulting in a shared bike/vehicle lane in both the westbound and eastbound directions between Sidney and Douglass Streets.
GENERAL INFORMATION:
  • Work hours will be 7 AM to 4 PM, Monday through Friday. Evening and weekend work are not planned but is possible. Abutters will be notified in advance.
  • There will be noise and disruption from construction activities.
  • Periodic Updates will be sent out to an email distribution list and posted on the project website (www.cambridgema.gov/theworks/theport) This will be the primary means of communication during the project. (send an email to kriley@cambridgema.gov or call 617-349-4870 if you wish to receive email updates).
  • Depending on the work planned, flyers may also be distributed to impacted abutters.
  • Traffic control will be implemented as appropriate for each of the work activities listed above, to maintain vehicular, pedestrian, and bicycle traffic. It is likely that on-street parking will be impacted in most cases. 
  • “No Parking” signs will be posted 24-hours in advance; please be sure to check dates/times.
  • Roadway and driveway access will be maintained, but may be restricted at times.
  • Pedestrian access and access into properties will be maintained,, but may be restricted in certain ways.
  • Emergency vehicles will have access at all times and all city services will continue.
  • Skanska has implemented a detailed rodent control plan. Please contact the Project Team with any concerns regarding rodent activity.

Aerial view of storage tank at Parking Lot 6


Notice: Construction at Bishop Allen Drive & School Street

On or about June 3, 2019, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will begin utility construction work at the intersection of School Street and Bishop Allen Drive. Given the size of the work zone needed directly at this intersection, vehicular and pedestrian access in this area will be impacted. Here is a summary of the expected impacts for the upcoming weeks.

Phase 1: Approximately June 3 – June 14, 2019

Within this time frame, Bishop Allen Drive will be westbound only between School Street and Columbia Street.

  • Columbia Street will be open southbound between Bishop Allen and Main Street at all times. This will be the detour route to Main Street for traffic approaching Columbia/Bishop Allen from the west or north.
  • The Cambridge School Department will be re-routing their larger school buses away from this intersection for the remainder of the school year.
  • Bishop Allen Drive will remain open to two-way traffic between School Street and Main Street.
  • Traffic destined for School Street is encouraged to use Pine or Cherry Streets. It will be difficult for vehicles to turn onto School Street from westbound Bishop Allen Drive. We will be posting signs encouraging vehicle access to be for “abutters only”.
  • Pedestrian crosswalks and sidewalks will remain open but may be slightly modified. Please follow posted signs at all times for your safety.
  • The on-street parking on both sides of Bishop Allen Drive between Columbia and School Streets will not be available for use.
  • These restrictions will be in effect 24 hours a day, 7 days a week during this period, unless otherwise posted.
Phase 2: Approximately June 14 – June 21, 2019

Within this time frame, Bishop Allen Drive will return to 2-way traffic between Columbia and School Streets. However, it will be difficult for vehicles, particularly large vehicles, to enter School Street from Bishop Allen Drive. We will be posting signs encouraging vehicle access to be for “abutters only”.

  • Traffic with destinations on School Street east of Pine Street is encouraged to reach School Street via Pine or Cherry Streets.
  • Pedestrian crosswalks and sidewalks will remain open, but may be slightly modified. Please follow posted signs at all times for your safety.
  • The on-street parking on both sides of Bishop Allen Drive between Columbia and School Streets will not be available for use.
  • These restrictions will be in effect 24 hours a day, 7 days a week during this period, unless otherwise posted
What to expect during construction
  • General work hours will be from 7AM to 4PM, Monday through Friday.
  • There will be noise and disruption from construction activities.
  • “No Parking” signs will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times, which may vary from the dates in this Notice.
  • Except as noted above, roadway, driveway, and pedestrian access to abutting properties will be maintained.
  • Emergency vehicles will have access at all time, and all City services will continue.
For Information and Assistance During Construction

If you have any questions about the construction work or need assistance, including if you have any special needs or disabilities that require special accommodations, please contact Kate Riley, DPW Community Relations Manager at (617) 349-4870 or kriley@cambridgema.gov. More information about the project in general can be found at www.cambridgema.gov/theworks/theport.

In case of a construction emergency, please call the Cambridge Public Works Department 24-hour hotline at 617-349-4800.

Thank you in advance for your patience and understanding during this construction.


Notice: Essex Street Closure- Work beginning around May 28th. 

Beginning approximately Tuesday, May 28, 2019, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will be returning to Essex Street to perform sewer and drainage work between Ashburton Place and Bishop Allen Drive.

As a result of our in-street and in-building investigations over the past several months, we have discovered several sanitary service pipes which are improperly connected to the storm drain in the street instead of the sanitary sewer. This is not an unusual situation in the older neighborhoods of Cambridge but must be corrected in order to complete the sewer separation process. The purpose of this upcoming work is to disconnect and reconnect those service pipes to the proper line in the street.

Given the narrowness of Essex Street and the size of the work zones needed, vehicular access to Essex Street from Bishop Allen Drive will need to be blocked during this work. This work is expected to be completed within approximately 1 week.

Within this time frame, during general working hours, you will not have vehicular access to Essex Street from Bishop Allen Drive. Normal street access is expected to resume at the completion of every construction work day. Note this will be very similar to the access plan which was in place last fall.

What to expect during construction
  • General work hours will be from 7AM to 4PM, Monday through Friday. There should not be any interruption to residential water, sewer, or drain service.
  • Abutter vehicles will be able to enter Essex Street “wrong way” from Harvard Street, under the supervision of a Police Detail officer stationed at the Harvard/Essex Street intersection. Due to the narrow width of the street, we ask that vehicle trips be reduced to a minimum, and that drivers exercise caution and patience.
  • “No Parking” signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times.
For Information and Assistance During Construction
If you have any questions about the construction work or need assistance, including if you have any special needs or disabilities that require special accommodations, please contact Kate Riley, DPW Community Relations Manager at (617) 349-4870 or kriley@cambridgema./gov. More information about the project in general can be found at www.cambridgema.gov/theworks/theport.
In case of a construction emergency, please call the Cambridge Public Works Department 24-hour hotline at 617-349-4800.
Thank you in advance for your patience and understanding during this construction.


Notice: Construction on Mass Ave between Douglass and Sidney Streets- Beginning Approximately April 1, 2019

Map of Mass Ave Between Douglass and Sidney St.

This notice is to alert you to pedestrian and bicycle detours which will begin on or about April 1, 2019. Please note the changes described below will be in effect for approximately 3 months, until the end of June 2019.


These changes are necessary due to the ongoing work of two separate projects in this area: The Cambridge DPW Port/PL6 Stormwater Project; and the private Mass + Main development project.

North sidewalk to be closed and pedestrians detoured
  • The Mass+Main project will be performing final utility connections, garage waterproofing, and final reconstruction of the new permanent sidewalk, requiring the sidewalk to be closed.
  • Pedestrians traveling between Columbia and Douglass Streets will be detoured to a temporary walkway located approximately where the current bicycle lane is. The 5-foot wide walkway will be protected on both sides by concrete barriers.
  • Temporary wheelchair/pedestrian ramps will be constructed to connect to the existing sidewalks at each end.
  • Pedestrian access will be maintained to Desi Dhaba, New City Microcreamery and McDonalds.
  • Please follow posted signs for your safety.
Westbound bicycle lane to be interrupted between Sidney and Douglass Streets
  • Beginning near the west end of Lafayette Square (Jill Brown-Rhone Park), westbound bicycles will transition to the single westbound vehicular travel lane, and share the lane with vehicle traffic for a distance of approximately 300 feet.
  • Bicycles may use the full lane in this section, and will transition back to the bicycle lane at Douglass Street.
  • Temporary signs and Shared Lane Markings (“Sharrows”) will be placed to alert all users of this condition.
  • Please follow posted signs and markings for your safety.


Notice: Construction at Bishop Allen Drive & Norfolk Street- Beginning Approximately March 18, 2019

In March 2019, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, began performing utility relocation work at the intersection of Norfolk Street and Bishop Allen Drive. Given the size of the work zone needed, vehicular access at this intersection has been impacted. Here is an update on the work to be performed in the upcoming weeks.

Phase 1: Approximately March 25 - March 29, 2019

Within this time frame, there will be no access for thru eastbound traffic on Bishop Allen Drive between Norfolk and Douglass Streets.

• Traffic coming from Prospect Street on Bishop Allen will need to turn right onto Norfolk Street.
• Traffic coming down Norfolk Street will not be able to turn left onto Bishop Allen.
• Vehicles exiting the Temporary Parking Lot 6 at 65 Bishop Allen will still be able to turn left or right onto Bishop Allen.
• Pedestrian traffic will be maintained in all directions, but there may be temporary sidewalk and crosswalk detours. Please follow posted signs for your safety.
• These restrictions will be in effect 24 hours a day, 7 days a week during this period.

Phase 2: Approximately April 1 - April 5, 2019

Within this time frame, there will be no access for thru southbound traffic on Norfolk Street between Bishop Allen Drive and Massachusetts Avenue

• Traffic coming down Norfolk Street will need to turn left or right onto Bishop Allen.
• Bishop Allen will be open to two-way traffic, but traffic will not be able to turn onto Norfolk.
• Vehicles exiting City Parking Lot #5 will be able to exit onto Norfolk Street as normal.
• Vehicles destined for the Santander Bank parking lot on Norfolk (as well as other vehicles destined for the last block of Norfolk) will be able to detour through City Parking Lot #5 if desired.
• Pedestrian traffic will be maintained in all directions, but there may be temporary sidewalk and crosswalk detours. Please follow posted signs for your safety.
• This restriction will be in effect only during normal work hours, Monday-Friday 7AM-4PM. Outside of those times, there will not be restrictions on vehicle movements.

Phase 3: Approximately April 8 - April 12, 2019


Within this time frame, the Contractor will restore roadway and sidewalk surfaces at the Bishop Allen/Norfolk intersection which were disturbed during construction. There will be intermittent daytime-only closures of Norfolk Street, and the eastbound side of Bishop Allen Drive, during this period.

What to expect during construction

• General work hours will be from 7AM to 4PM, Monday through Friday.

• “No Parking” signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times.


For Information and Assistance During Construction

If you have any questions about the construction work or need assistance, including if you have any special needs or disabilities that require special accommodations, please contact Kate Riley, DPW Community Relations Manager at (617) 349-4870 or kriley@cambridgema./gov. More information about the project in general can be found at www.cambridgema.gov/theworks/theport.

In case of a construction emergency, please call the Cambridge Public Works Department 24-hour hotline at 617-349-4800.

Thank you in advance for your patience and understanding during this construction.


Tree Removal at Mass. Ave and Douglass St. 

The City’s Contractor for the Parking Lot 6 - Port Stormwater Project, Skanska, will be removing two trees in mid-to-late March.   The two Linden trees are located on the northwest corner of Mass Avenue at Douglass Street. The trees were assessed by the City Arborist in June 2018, and were determined to be in failing health.  The trees and their root systems are also within, or in very close proximity to, a planned excavation to install a critical  stormwater structure. Two new  trees will be planted at this location following completion of the underground work. Note that a third tree, along the Mass Ave curb and closest to Douglass Street, is to remain and will be protected during construction. Please see attached for a diagram of the trees to be removed. 

Mass Ave at Douglass St intersection


Upcoming Construction on Mass. Ave and Douglass St.

Beginning approximately Monday, January 28, 2019, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will be performing test pits, water main relocations, and other drainage and utility work at the intersection of Massachusetts Avenue and Douglass Street.

The work at this location will specifically impact the northwest corner in front of Peoples United Bank, and will last for approximately 5 months.

During the early weeks of this period, there will be intermittent closures of the crosswalk across Massachusetts Avenue at this location. Once preliminary work has been completed in these first few weeks, the crosswalk will be relocated slightly towards Douglass Street, to allow full pedestrian access across Massachusetts Avenue for the remainder of the work.

In general, normal crosswalk access is expected to resume at the completion of every construction work day. In addition, the work will not prevent pedestrian travel along the north side of Massachusetts Avenue and across Douglass Street.

What to expect during construction:
General work hours will be from 7AM to 4PM, Monday through Friday.

During periods when the crosswalk is closed, the Contractor will post signs advising of the closure, along with signs directing pedestrians to the nearest available crosswalks to the east and west.

“No Parking” signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times.

Police officers will be on hand at the work site to assist with pedestrian and traffic flow as needed.


Two Important Announcements: Bishop Allen Dr. and Essex St.

The City’s contractor on the Port Infrastructure Improvement Project, Skanska USA, has been approved for a Special Noise Variance for an early AM start of work in the area.

On Friday, December 21, around 5AM, they will be moving a large excavator to the Parking Lot 6 work site off of Bishop Allen Drive.

The size of this equipment, and the slow pace at which it must be moved, necessitates that it be moved during hours when pedestrian and vehicle traffic is at a minimum. The use of back-up alarms on the equipment will be minimized to the extent possible.
__________________________________________________________________

We again apologize, but the Essex St. Water Main and Sewer Repair work has had to be extended. The condition of the utilities in this area is such that progress on this work has been much slower than initially anticipated. This work will need to continue through January 25, 2019. There will then be a break, and the Contractor will return in the Spring to perform miscellaneous final work and permanently repair the roadway and sidewalk.

In consideration for the residents enjoying time at home during the holidays, we have arranged for a temporary work suspension on Essex St. from December 24th - January 1st. Work will begin again on Wednesday, January 2nd.

We sincerely apologize for the inconvenience this delay has cause and thank you for your patience as we work on this important infrastructure project.


The City’s contractor on the Port Infrastructure Improvement Project, Skanska USA, has been approved for a Special Noise Variance for an early AM start of work in the area.

On Friday, December 21, around 5AM, they will be moving a large excavator to the Parking Lot 6 work site off of Bishop Allen Drive.

The size of this equipment, and the slow pace at which it must be moved, necessitates that it be moved during hours when pedestrian and vehicle traffic is at a minimum. The use of back-up alarms on the equipment will be minimized to the extent possible.


Notice: Overnight work being performed on Bishop Allen Drive, Wednesday 12/12-Thursday, 12/13

The City’s contractor on the Port Infrastructure Improvement Project, Skanska USA, has been approved for a Special Noise Variance to do overnight work in the area. On Thursday, December 13th, around 2AM, they will be moving a large drill rig from its current location off of Bishop Allen Drive, to their work zone on Massachusetts Avenue. The route will be Bishop Allen Drive eastward to Main Street, and then west on Main Street to Sidney Street, and then west on Mass Ave to the existing fenced-in work zone at Lafayette Plaza.    

The size of this equipment, and the slow pace at which it must be moved, necessitates that it be moved at night when pedestrian and vehicle traffic is at a minimum.  The use of back-up alarms on the equipment will be minimized to the extent possible.  

Please take note of "No Parking" signs posted on Bishop Allen Drive.

Thank you for your patience as we work on this important infrastructure project. 


Notice: Utility Work on Bishop Allen Drive. Road closed to east-bound traffic between Prospect St. and Essex St. during work hours.

Beginning on or around December 5th, and continuing for approximately 3 weeks, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will be performing sewer and drainage work on Bishop Allen Drive between Prospect St. and Essex St.

The work will require Bishop Allen Drive to be closed to east-bound traffic between Prospect St. and Essex St. weekdays from 7AM-4PM. The road will be fully open to two-way traffic outside of these hours.

Please pay careful attention to detour signs and follow the directions of the detail officers.


Notice: Mass Ave. Water Main Replacement

Beginning on or around November 26, and continuing for approximately 2 weeks, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will be replacing an obsolete water main in Massachusetts Avenue. The water main crosses Mass Avenue from north to south, over the top of the MBTA Red Line tunnel, just to the east of the McDonalds at 463 Mass. Ave.

The work will require daytime traffic lane shifts, which will be managed by the Contractor and Cambridge Police officers.

We apologize for the inconvenience and appreciate your extra care when traveling on Mass. Ave between Douglass and Sidney Street while this work is taking place.

  • General work hours will be from 7AM-4PM
  • "No Parking" signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times. 
  • Please pay careful attention to detour signs and follow the directions of the detail officers.


Notice: Essex St. Water Main and Sewer Repair- Work continuing through mid-December Dear Essex Street, Ashburton Place, Percy Place, and Lamson Place Neighbors:

For the past several weeks, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, has been performing water main relocation work at the intersection of Essex Street and Bishop Allen Drive. During the final tie-in part of the process, the crew discovered that the sewer pipe is seriously deteriorated and needs to be replaced.

We anticipate this work to take an additional 3-4 weeks to make the necessary repairs. We apologize for the inconvenience and appreciate your patience during this unforeseen delay in completing the work.

What to expect during construction

  • General work hours will be from 7AM to 4PM, Monday through Friday.
  • Abutter vehicles will be able to enter Essex Street “wrong way” from Harvard Street, under the supervision of a Police Detail officer stationed at the Harvard/Essex Street intersection. Due to the narrow width of the street, we ask that vehicle trips be reduced to a minimum, and that drivers exercise caution and patience.
  • “No Parking” signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times. 
For Information and Assistance During Construction
If you have any questions about the construction work or need assistance, including if you have any special needs or disabilities that require special accommodations, please contact Kate Riley, DPW Community Relations Manager at (617) 349-4870 or kriley@cambridgema./gov. More information about the project in general can be found at www.cambridgema.gov/theworks/theport.

In case of a construction emergency, please call the Cambridge Public Works Department 24-hour hotline at 617-349-4800.

Thank you in advance for your patience and understanding during this construction.


Week of 10/22:

One crew will be working on the water main on Essex St (between Bishop Allen Dr. and Harvard St). Access to Essex street from the Bishop Allen end will be closed during this work. Access will be allowed to and from Harvard Street.

One crew will be working on driving steel sheets to line the underground tank going in at former municipal parking lot #6. This work will be disruptive (noise and vibration) and is expected to last until early December. 

Later in the week, crews will be working on excavation between Sidney St. and Douglass St.


Notice: Essex St. Closure Beginning approximately Monday, October 1, 2018, the City’s contractor for the Port Infrastructure Project, Skanska Civil USA, will be performing water main relocation work at the intersection of Essex Street and Bishop Allen Drive.   Given the size of the work zone needed, vehicular access to Essex Street from Bishop Allen Drive will need to be blocked during much of this work.  This work is expected to be completed within 2-3 weeks.   
 
Within this time frame, during general working hours, you may not have vehicular access to Essex Street from Bishop Allen Drive.  Normal street access is expected to resume at the completion of every construction work day. 

What to expect during construction: 

  • General work hours will be from 7AM to 4PM, Monday through Friday.
  • Abutter vehicles will be able to enter Essex Street “wrong way” from Harvard Street, under the supervision of a Police Detail officer stationed at the Harvard/Essex Street intersection.  Due to the narrow width of the street, we ask that vehicle trips be reduced to a minimum, and that drivers exercise caution and patience. 
  • “No Parking” signs, if needed to facilitate the work or traffic flow, will be posted at least 24 hours in advance of construction. Please be sure to check posted signs for exact dates and times.  
  • There may be some exploratory work starting during the week of September 24th, 2018, but this work will not prevent vehicular access to Essex Street from Bishop Allen Drive. 
For Information and Assistance During Construction If you have any questions about the construction work or need assistance, including if you have any special needs or disabilities that require special accommodations, please contact Kate Riley, DPW Community Relations Manager at (617) 349-4870 or kriley@cambridgema./gov.  More information about the project in general can be found at www.cambridgema.gov/theworks/theport.    
 
In case of a construction emergency, please call the Cambridge Public Works Department 24-hour hotline at 617-349-4800.


Notice: The Port - PL 6 Stormwater Tank Project - Upcoming Construction on Massachusetts Avenue The City of Cambridge has awarded a contract to the firm of Skanska USA Civil for the construction of the first phase of The Port Infrastructure Improvements Project. This first phase, known as the “PL6 Stormwater Tank Project”, includes the construction of an underground 390,000 gallon storage tank and pump station, which will be located beneath a portion of the City’s Parking Lot 6 on Bishop Allen Drive.

In addition to the tank and pump station, the PL6 Project includes construction of a utility tunnel beneath the MBTA Red Line to connect the tank to the existing Mass. Ave. storm drain. This work, along with associated utility relocations and surface restoration, will require construction work in Massachusetts Avenue between Douglass and Sidney Streets, for a period of approximately 15 months, beginning in mid-August 2018.

WHAT TO EXPECT ALONG MASSACHUSETTS AVENUE (NOTE - ALL SCHEDULE DATES ARE APPROXIMATE, AND THE CITY WILL ISSUE PERIODIC UPDATES AS MORE DETAILED TIME FRAMES BECOME KNOWN):
  • Mid-August 2018: Excavation of test pits at several locations between Douglass Street and Lafayette Square to verify existing utilities. 
  • Mid-September 2018: Establishment of a long-term work zone on the north side of Mass. Ave. along Lafayette Square (across from the Salvation Army building) and extending west along the Mass+Main frontage. This will allow for utility relocations and the major work of constructing the utility tunnel and its access shafts. The City will provide additional details (including maps) about this aspect of the project later this summer, but in general:
- The work zone will be in place from mid-September 2018 until August 2019.

- Approximately 8-10 parking and loading spaces on the north side, beginning at Lafayette Square and heading west, will be temporarily eliminated.

- A portion of Jill Brown-Rhone Park at Lafayette Square, primarily the open plaza area across from the Salvation Army building, will not be accessible during this time.

- The crosswalk at 424 Mass. Ave (Mariposa Bakery) will be eliminated for much of this time.

- Mass. Ave. will be reduced to one vehicle lane in each direction, plus one bicycle lane in each direction, from approximately 450 Mass. Ave. (La Fabrica) to Sidney Street.

- We are coordinating closely with the Mass+Main project, so that Mass+Main can do its own required utility work on Mass. Ave. during this same timeframe, avoiding multiple shutdowns.

  • Mid to late October 2018: Excavation across Mass Ave just east of McDonalds, to replace an obsolete water main. This work will be performed in stages to accommodate traffic at this location. 
  • Late October - mid-December 2018: Reconstruction of a major drainage structure located in the sidewalk in front of 485 Mass. Ave. (Peoples United Bank). This work also requires relocation of water, electric, and telephone conduits at this location. 
  • August 2019 - November 2019: Construction of a new section of sanitary sewer in the north side of Mass. Ave. from Lafayette Square to Sidney Street, and across Mass. Ave. into Sidney Street. Repaving of the portions of Mass. Ave. which have been disturbed during the project, and restoration of full pedestrian, bicycle, and vehicular access. 

GENERAL INFORMATION:
  • Work hours will be 7 AM to 4 PM, Monday through Friday. Evening and weekend work is not planned but is possible. Abutters will be notified in advance.
  • There will be noise and disruption from construction activities. 
  • Periodic Updates will be sent out to an email distribution list and posted on the project website (www.cambridgema.gov/theworks/theport) This will be the primary means of communication during the project. (send an email to kriley@cambridgema.gov or call 617-349-4870 if you wish to receive email updates).
  • Depending on the work planned, flyers may also be distributed to impacted abutters. 
  • Traffic control will be implemented as appropriate for each of the work activities listed above, to maintain vehicular, pedestrian, and bicycle traffic. It is likely that on-street parking will be impacted in most cases. 
  • “No Parking” signs will be posted 24-hours in advance; please be sure to check dates/times.
  • Roadway and driveway access will be maintained, but may be restricted at times.
  • Pedestrian access and access into properties will be maintained,, but may be restricted in certain ways.
  • Emergency vehicles will have access at all times and all city services will continue.
  • Skanska will develop and implement a detailed rodent control plan. Please contact the Project Team with any concerns regarding rodent activity.

RELATED WORK AND COMMUNITY PROCESS
In addition to the work described above, the PL6 Project will also have impacts on Bishop Allen Drive and portions of Essex Street. A flyer similar to this one will be distributed to impacted abutters of those streets.

The City will be engaging in a community process, beginning this Fall, for the overall Port Infrastructure Project, which includes the current PL6 project as well as future planned phases. Please visit the website, or join the email list as noted above, to be kept up to date on all Project activities, including community engagement. 


Notice: The Port - PL 6 Stormwater Tank Project- Upcoming Construction on Bishop Allen Drive and Essex StreetThe City of Cambridge has awarded a contract to the firm of Skanska USA Civil for the construction of the first phase of The Port Infrastructure Improvements Project. The Port Project is a major infrastructure program which will reduce the incidences of storm related flooding in The Port neighborhood. Information on the Project can be found at www.cambridgema.gov/theworks/theport. The City will also be holding a community meeting to discuss the project in the Fall of 2018.

This first phase of the Port Project, known as the “PL6 Stormwater Tank Project”, includes the construction of an underground 390,000 gallon storage tank and pump station, which will be located beneath a portion of the City’s Parking Lot 6 on Bishop Allen Drive.

In addition to the tank and pump station, the PL6 Project requires construction in Bishop Allen Drive to connect the local drainage system to the new tank, and complete the separation of storm drain and sanitary sewer pipes. This work, along with associated utility relocations and surface restoration, will require construction work in Bishop Allen Drive between Prospect and School Streets, (and to a much lesser extent in Essex Street between Ashburton Place and Bishop Allen Drive) for a period of approximately 22 months, beginning in September 2018.

WHAT TO EXPECT ALONG BISHOP ALLEN DRIVE AND ESSEX STREET (NOTE - ALL SCHEDULE DATES ARE APPROXIMATE, AND THE CITY WILL ISSUE PERIODIC UPDATES AS MORE DETAILED TIME FRAMES BECOME KNOWN):

  • September - early October 2018: Excavation of test pits on Bishop Allen Drive between Prospect and School Streets; and in Essex Street between Bishop Allen and Ashburton Place, to verify existing utilities. 
  • October-November 2018: Drainage construction between Prospect Street and Essex Street. 
  • December 2018 - January 2019: Sewer repairs and drainage construction between Essex Street and Norfolk Street.
  • April-May 2019: Water main relocation and drainage construction between Norfolk and Douglass Streets.
  • June-August 2019: Sewer and drainage work in Essex Street between Bishop Allen Drive and Ashburton Place.
  • September - November 2019: Water, sewer and drainage work in Bishop Allen Drive between Douglass and Columbia Streets. Note: This section includes installation of a large underground drainage structure opposite Parking Lot 6, which will require complete closure of this section of Bishop Allen to vehicular traffic for several weeks. The City will provide more details on this work well in advance.
  • December 2019: Drainage work between Columbia and School Streets. 
  • April - June 2020: Reconstruct roadway, curb and sidewalks on Bishop Allen Drive.
GENERAL INFORMATION:
  • Work hours will be 7 AM to 4 PM, Monday through Friday. Evening and weekend work is not planned but is possible. Abutters will be notified in advance.
  • There will be noise and disruption from construction activities. 
  • Periodic Updates will be sent out to an email distribution list and posted on the project website (www.cambridgema.gov/theworks/theport) This will be the primary means of communication during the project. (send an email to kriley@cambridgema.gov or call 617-349-4870 if you wish to receive email updates).
  • Depending on the work planned, flyers may also be distributed to impacted abutters. 
  • Traffic control set-ups will be implemented as appropriate for each of the work activities listed above, to maintain vehicular, pedestrian, and bicycle traffic. It is likely that on-street parking will be impacted in most cases. 
  • “No Parking” signs will be posted 24-hours in advance; please be sure to check dates/times.
  • Except as noted above, roadway and driveway access will be maintained, but may be restricted at times.
  • Pedestrian access and access into properties will be maintained at all times, but may be restricted in certain ways.
  • Emergency vehicles will have access at all times and all city services will continue.
  • Skanska will develop and implement a detailed rodent control plan. Please contact the Project Team with any concerns regarding rodent activity.
RELATED WORK AND COMMUNITY PROCESS
In addition to the work impacting Bishop Allen Drive and Essex Street described above, the PL6 Project will also have impacts on Massachusetts Avenue. A flyer similar to this one will be distributed to impacted abutters of that street.

The City will be engaging in a community process, beginning this Fall, for the overall Port Infrastructure Project, which includes the current PL6 project as well as future planned phases. Please visit the website, or join the email list as noted above, to be kept up to date on all Project activities, including community engagement. 


July 2018
  • The City has awarded a contract to the firm of Skanska USA Civil for the construction of the first phase of the project. This first phase, known as the “PL6 Stormwater Tank Project”, includes the construction of an underground 390,000 gallon storage tank and pump station, which will be located beneath a portion of the City’s Parking Lot 6 on Bishop Allen Drive. Stormwater runoff from The Port neighborhood will be stored in this tank, and subsequently will be pumped out into a large storm drain located in Massachusetts Avenue. 
  • In addition to the tank and pump station, the PL6 Project includes the construction of a utility pipe tunnel beneath the MBTA Red Line tunnel, which will allow for the connection of the tank to the Mass. Ave storm drain. The project also includes associated utility relocations and improvements in Bishop Allen Drive between Columbia and Essex Streets; and in Massachusetts Avenue between Douglass and Sidney Streets. 
  • At the completion of the project in mid-2020, the impacted portion of Bishop Allen Drive, including the roadway and sidewalks, will be reconstructed.
  • The City project will be performed in close coordination with the private Mass+Main project, which is also located in the Parking 6 area. At the conclusion of both projects in mid-2020, the Mass+Main project will completely reconstruct Parking Lot 6 to the City’s requirements, and it will again be available for public parking. In the meantime, the temporary Parking Lot 6 at 65 Bishop Allen Drive will continue to be available to the public. 
  • Additional community engagement about the PL6 Project, and the overall Port Infrastructure Project, will continue in the late summer/early fall of 2018. 


February 2018

Underway (Phase 1) includes building a stormwater tank in Parking Lot 6 (PL-6) across from St. Paul's AME Church.


Learn about Flow...A Grant Program for the Port from Cambridge Arts.
Many neighborhoods in the Cambridge area are susceptible to the impacts of flooding. Particularly at risk are those properties with basement spaces and first levels at a lower elevation. The City’s assessment on climate change vulnerability has shown the risk of flooding is increasing over time, as the impacts of climate change lead to more frequent and intense rainfall events.

The Port has experienced significant flooding in the past. The City is focusing on this area in the coming years via The Port Project to improve these conditions.

While change remains an inevitable process, infrastructure projects like these will decrease future flooding risks.

Access The Port Project Overview with information about flooding, streets and sidewalks, and public art.


PRE-CONSTRUCTION ACTIVITY NOTICE

Over the next five years, the City anticipates spending over $35M for the design and construction of water, sewer, drainage, street and sidewalk improvements in your neighborhood. The improvements will focus on rehabilitating existing infrastructure, constructing two underground stormwater tanks, reducing flooding in the area, and reconstructing the streets and sidewalks. The locations of these improvements are (see map):

  • Streets and Sidewalks: Bishop Allen Drive (Prospect to Main), Cherry Street (Main to Harvard), Columbia Street (Main to Washington), Eaton Street (Pine to Cherry), Pine Street (School to Harvard), and Washington Street (Norfolk to Windsor)
  • Stormwater Tanks: Parking Lot 6 on Bishop Allen Drive and Clement Morgan Park on Columbia Street

While the formal design and community process for this project will not begin until the winter months of 2015, pre-construction activities are scheduled to begin the week of October 12th in your neighborhood and we wanted you to be aware of this activity. These activities include:

  • Data collection: The City’s consultant engineers, Kleinfelder, MWH and WSP, along with their sub-consultants, will begin to collect the data needed to complete the design of this project - including topographic surveys, cleaning and inspection of pipes and structures, and soil borings. Soil borings will be conducted in public streets and sidewalks and should have little impact on the community. They will also be performing building inspections, to verify the number and location of utility connections. Owners will be sent a separate notice with details on how to schedule inspections at their property, if required.
  • Questionnaire: In the months ahead, you will be receiving a questionnaire that we encourage you to fill out and return to us. As a resident, your knowledge of this neighborhood is valuable and will help us to inform and improve the final project design, which will directly benefit you and your neighborhood.
For English, visit: http://www.cambridgema.gov/theworks/ThePort

Pale kreyòl? * Falam Portuguêse? * Hablan español?

visit/visitar: http://www.cambridgema.gov/theworks/ThePortNeighborhood

Questionnaires:
English
Spanish
Portuguese
Creole

Construction of Phase 1 of the program, the “PL6 Stormwater Tank Project”, will begin in August 2018 and extend through mid-2020.


Phase 1: Includes building a stormwater tank in Parking Lot 6 (PL-6) across from St. Paul's AME Church. Construction anticipated to begin in January 2018.

Phase 2: Includes installation of a second stormwater storage tank, along with other roadway and sidewalk improvements.  Schedule TBD.

Many neighborhoods in the Cambridge area are susceptible to the impacts of flooding. Particularly at risk are those properties with basement spaces and first levels at a lower elevation. The City’s assessment on climate change vulnerability has shown the risk of flooding is increasing over time, as the impacts of climate change lead to more frequent and intense rainfall events.

The Port has experienced significant flooding in the past. The City is focusing on this area in the coming years via The Port Project to improve these conditions.

While change remains an inevitable process, infrastructure projects like these will decrease future flooding risks.

Over the next five years, the City of Cambridge anticipates spending over $35,000,000 for the design and construction of water, sewer, drainage, street and sidewalk improvements in your neighborhood. The improvements will focus on rehabilitating existing infrastructure, constructing two underground stormwater tanks, reducing flooding in the area, and reconstructing the streets and sidewalks.

For more information: ~/media/781A933D21244628BCCB61FCB83BC15A.ashx

Department of Public Works 147 Hampshire Street Cambridge, MA 02139 P. 617.349.4800

Kate Riley - Community Relations Manager

617-349-4870 

kriley@cambridgema.gov


Jerry Friedman - Supervising Engineer

617-349-9720

jfriedman@cambridgema.gov


For 24 hour emergency assistance, please call Public Works at 617.349.4800.



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Page was last modified on 7/24/2019 1:22 PM
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