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Massachusetts Water Resources Authority
PROJECT UPDATE

Date:

Updated May 24, 2024

Contact:

Troy Wall
(617) 305-5762, Troy.Wall@mwra.com


Section 101 Extension - Waltham


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About this Project:

The Section 101 Pipeline Extension project consists of a new 36-inch diameter water main and appurtenances extending from MWRA’s Meter 182 at the Waltham/Lexington town line down Lexington Street to Totten Pond Road, where it will connect to Waltham’s water system. This connection will provide a new redundant water supply to Waltham’s Prospect Hill Service area from the NEH pressure zone and to MWRA’s Lexington Street Pumping Station. In an emergency, the pipeline will provide a partial water supply to MWRA’s NEH pressure zone from the Lexington Pumping Station. This new water main will provide sufficient capacity to maintain water service to Waltham during the anticipated shutdown of MWRA’s WASM 3 pipeline and the Lexington Street Pumping Station for future rehabilitation.

The contract documents include water, sewer and drain utility replacement work in the project area for the City of Waltham that needs to be completed concurrently with the MWRA work and prior to completion of construction of the City’s new high school anticipated in 2024. Reimbursement to MWRA for the design and construction of the City’s portions of work will be made under the terms of a Memorandum of Agreement (MOA). On April 25, 2022, the Waltham City Council voted to approve the appropriation of funds for its work under the contract and the City has certified this pursuant to the agreement.

Work Includes:

  • Install 9,000 LF of 36” MWRA Main
  • Install New MWRA  Meter Vault & 4 Community Meters
  • Remove and Replace 4’ Box Culvert
  • Remove & Replace 2,900 LF of Waltham 12” water main
  • Replace & Replace 2,600 LF of Waltham 10” water with 12” water
  • Remove 870 LF of  15” drain and replace with 36” drain
  • Remove 2,700 LF of 10” sewer and replace with 12” sewer + 550 LF of new 15” drain

Schedule:
The construction will take approximately 24 months. NTP was signed in July 2022, Construction will begin in April 2023 and expected completion in Winter 2024 / Spring 2025.

Project Updates

Construction activities for the week of May 27, 2024:

This week, crews continued to make progress installing the new 36” pipeline. Approximately 160 linear feet was constructed along Lexington Street getting across the entrance to the schools at Jack’s Way.

  • Other work completed included tie-ins of cross streets and services near Lake Street and north of Lake Street .

Due to the upcoming Memorial Day Weekend, next week, crews will work an altered schedule, Tuesday through Thursday, from 7:00AM to 5:00PM with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift. During construction activities, the southbound Lexington Street detour will be in place.

  • Crews are expected to continue installing the new 36” pipe just north of Jack’s Way
  • Additional work will also consist of continuing with service tie-ins north of Lake Street.  It is anticipated that some of these tie-ins will be completed overnight to limit service disruptions to the businesses around the Wal-Lex Shopping Center.

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Construction activities for the week of May 20, 2024:

  • This week, crews continued efforts to install the new 36” pipeline, including the construction of 20 linear feet of the pipeline near Jack’s Way, and completing all of the 6” and 8” diameter piping interconnections at associated project infrastructure.
    • Additionally, crews also continued with water main relocations/replacements on Lexington Street at/near Brookway Road.
    • Furthermore, the contractor has placed the base course of binder along Lexington Street from Totten Pond Road north to approximately 100’ south of Jack’s Way.
  • Next week, crews will work a normal schedule with the southbound Lexington Street detour in place, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift.
    • Please note, on Tuesday, May 21, 2024, the contractor will begin installing pipe across the school entrance at Jack’s Way.  They will utilize a delayed start to the work day to lessen the impact to the morning drop off.  Currently, MWRA is working closely with the Waltham Police to coordinate this work.
    • Crews are expected to continue installing the new 36” pipe through Jack’s Way;
    • Additional work will consist of water main tie-ins at cross streets north of Lake Street continuing at Brookway Road and then working North.

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Construction activities for the week of May 13, 2024:

  • This week, crews continued to make progress on the 36” water main by constructing approximately 23 linear feet of pipeline near Jack’s Way, installing a valve chamber and associated piping, and completing pipe work at the air release chamber.
    • Crews were also able to focus on water main relocations/replacements on Lexington Street at the Lake Street intersection and Brookway Road intersection. At these locations gravel trenches were plated or paved ahead of weekend travel use.
    • Additionally, full-width asphalt milling and grading along Lexington Street from Totten Pond Road to approximately 200 feet south of Jack’s Way was completed (the roadway is gravel through this location).
  • Next week, crews will work a normal schedule with the southbound Lexington Street detour in place, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift.
    • The crews are expected to continue installing the new 36” pipeline through Jack’s Way. They will also continue to address water main tie-ins at cross streets north of Lake Street.
    • Furthermore, paving operations are currently scheduled to take place on Tuesday and Wednesday next Week (5/14 – 5/15).

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Construction activities for the week of May 6, 2024:

  • This week, crews continued their efforts constructing the new 36” water main located near Jack’s Way, resulting in nearly 30 linear feet of newly installed pipeline.
    • The crews also focused on the city’s new municipal 12” and 16” water lines at the Lake Street intersection, as well as additional supporting infrastructure, such as manholes and catch basins between Jack’s Way and Totten Pond Road.
    • A third crew also addressed manhole covers, plating over structures, and the milling and grading of Lexington Street from Totten Pond Road to Curve Street in anticipation of full-width paving (anticipated to start the week of May 13th).
      • Please note that Lexington Street is a gravel road from Totten Pond Road to Curve Street.
  • Next week, crews will work a normal schedule with the southbound Lexington Street detour in place, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift.
    • The crews are expected to continue installing the new 36” pipe near Jack’s Way, including concrete vault structures, as well as sewer replacement work.
    • Additional work will also include conducting water main tie-ins at cross streets north of Lake Street, and the completion of milling and grading work on Lexington Street up to Jack’s Way (there will be a gravel roadway between Totten Pond Road and Jack’s Way next week).
  • Furthermore, the City is beginning a sidewalk replacement project along Lexington Street within the next 2 weeks. The project will include replacing the sidewalks on both sides of Lexington Street between Totten Pond Road and Jack's Way.
    • The City will be providing weekly construction updates via email. To receive these updates, please email John Martino of the Engineering Department at j.martino@city.waltham.ma.us.

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Construction activities for the week of April 29, 2024:

  • This week, crews focused efforts to construct the new 36” water main just south of Jack’s Way by removing ledge and installing approximately 36 linear feet of pipeline and thrust blocks. The crews also continued to work on city utilities at the Lake Street intersection.
    • Additionally, on Thursday afternoon, all gravel trenches were paved ahead of the upcoming weekend for vehicular traffic.
  • Next week, crews will work a normal schedule with the southbound Lexington Street detour in place, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift.
  • Crews are expected to continue installing the new 36” pipe near Jack’s Way, including concrete vault structures and sewer replacement, and the new municipal 12” and 16” water piping at the Lake Street intersection.
    • Furthermore, crews will be lowering utility castings (manhole covers and catch basins) between Jack’s Way and Totten Pond Road in anticipation of upcoming paving work.

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Construction activities for the week of April 22, 2024:

  • This week, crews focused efforts to construct the new 36” water main across Lexington Street, installed approximately 140 linear feet of pipeline, and continued to make municipal water service connections at the Lake Street intersection.
    • Additionally, on Thursday afternoon, trenches were paved ahead of the upcoming weekend for vehicular traffic.
  • Next week, crews will work a normal schedule with the southbound Lexington Street detour in place, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work later each day or on Friday should weather or other impacts cause the schedule to shift.
    • Important to note, the evening traffic management plan (alternating traffic through the work zone) will NOT be in effect.
  • Crews are expected to continue installing the new 36” pipe near Jack’s Way and also install city utilities at the Lake Street intersection.

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Construction activities for the week of April 15, 2024:

  • This week, crews continued efforts to complete additional water service connections from the new pipeline to side streets off of Lexington Street. They also focused on water main pipeline installation work near Jack’s Way and at the Lake Street intersection.
    • On Thursday afternoon, trenches were paved ahead of the upcoming weekend for vehicular traffic.
  • Due to the upcoming Patriots Day holiday, next week crews will work an abbreviated schedule with the detour in place, Tuesday through Thursday, from 7:00AM to 7:00PM, with potential for work on Friday should weather or other impacts cause the schedule to shift.
    • Important to note, after 7:00PM each night, southbound traffic will be allowed back onto Lexington Street, but there will be alternating traffic through the work zone just south of Jack’s Way throughout the night until 7:00AM.
    • It is expected that this change will be in place until Friday, April 19th at 7:00PM.

    · One crew will continue efforts on the water main pipeline installation just south of Jack’s Way.
    · The second crew will continue the ongoing water main installation work at the Lake Street intersection.

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Construction activities for the week of April 8, 2024:

  • Due to inclement weather that impacted this week’s schedule, crews were on site Friday to continue the project’s progress. This week’s work included the completion of the thrust block installation work at the Lexington and Lincoln Streets intersection, which will support the new 36” water main line. Additionally, crews also continued to complete water service connections along Lexington Street. By the end of the work day on Friday, trenches will have been paved for vehicular travel ahead of the upcoming weekend.
  • Next week, crews will work a normal four day, ten hour week, Monday through Thursday, from 7:00AM to 5:00PM, with potential for work on Friday should weather impact the schedule.
    • One crew will finish work at Lincoln Street and then move back up to the water main installation just south of Jack’s Way.
    • A second crew will continue with water service connections and then begin water main installation at the Lake Street intersection.
  • Important to note, a Lexington Street detour will be in effect starting on Tuesday, April 9, 2024, and continuing into fall 2024 for southbound traffic during construction hours; however, traffic to the high school, middle school, and the YMCA will be allowed to travel southbound (please see detour map).
    • Lexington Street will remain open to northbound traffic during work hours, and will re-open to southbound traffic starting at approximately 7:00PM after each workday.


      Lexington St Detour Map:

      Click on image to enlarge or view as a PDF here.

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April 2, 2024

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36-inch butterfly valve and blow off piping installed and thrust blocks being formed

New meter vault set in place

Blow off manhole being set in place

Connecting to City mains in Piety Corner

Connecting to City mains in Piety Corner

New meter vault set in place

Blow off manhole being set in place

New 24-inch valve manhole being set

New 24-inch piping at Piety Corner

Construction activities for the week of April 1, 2024:

  • This week, crews completed necessary work associated with the water mains behind the jersey barriers located within the Piety Corner area, including all frames and covers installed, gate boxes for valve actuator operation were raised to grade, and the site was compacted and backfilled.
    • The crew then moved to the intersection of Lexington Street and Lincoln Street and commenced work to install thrust blocks behind the 36” water main.
  • Additionally, a separate crew continued efforts to complete water service connections along Lexington Street. By end of work on Thursday, trenches had been paved ahead of the weekend.
  • Next week, crews will work a normal four day, ten hour week, Monday through Thursday, from 7:00AM to 5:00PM.
    • One crew will focus on thrust block installation work at the Lexington and Lincoln Streets intersection. Work is expected to take approximately a week before moving to Jack’s Way.
    • The second crew is expected to continue conducting water connections and services from Lake Street to the high school exit for the next several weeks.

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Construction activities for the week of March 25, 2024:

  • This week, crews completed critical work within the barrier site located at the Piety Corner intersection.
    • This work included the installation and completion of all water main piping and appurtenances, such as cathodic protection, a gate valve actuator at the 36” butterfly valve chamber, and gate box covers.
    • The crew also backfilled the area, prepared subgrade soils, and paved the location.
    • Additionally, crews continued with the installation of water services and the temporary paving of trenches along Lexington Street.
  • The barriers at Piety Corner will now be reconfigured and temporary line striping will be completed through the intersection to reestablish the original traffic pattern (two lanes open along Lexington Street southbound through the intersection).
  • Next week, crews will return to a four day, ten hour work day, Monday through Thursday, from 7:00AM to 5:00PM.
  • They will focus on drainage work at the Totten Pond Road/Lexington Street intersection, the construction of a thrust block near Lincoln Street, and additional water service connections between Lake Street and the high school.

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Construction activities for the week of March 18, 2024:

  • This week, crews continued their efforts within the Piety Corner work site, which included making water main connections to the existing municipal pipeline.  They also installed service connections to residential homes further along the Lexington Street area.
  • Next week, crews will work a normal schedule, Monday through Friday, from 7:00AM to 3:00PM with potential to work until 5:00PM.
  • They will focus on the installation of the last 24” thrust collar, and complete the connecting of the existing 24” and 12” pipelines.
  • Additionally, the work crews are expected to install other infrastructure, such as a hydrant, taps, and core vaults, prior to backfilling trenches, paving as needed, and roadway line striping work.
  • Important to note, weather or other disruptions may impact scheduled work.

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Construction activities for the week of March 11, 2024:

  • This week, work crews continued their work located at Piety Corner on Lexington Street. Specifically, work included the construction of the 24” and 16” water mains, the installation of butterfly valves, and connections to the existing water mains.
  • Also, the 12” water main between Jack’s Way and Lake Street passed water sample tests, enabling the crew to begin water service connections.
  • For next week, crews will work a normal schedule, Monday through Friday, from 7:00AM to 3:00PM with potential to work until 5:00PM. They will focus on the construction of the new water mains and associated connections. Additionally, internal electric and pipe work will continue at the water meter at the intersection.
  • As a reminder, a slight change in the current traffic plan at Piety Corner will be implemented. The slight change expands the work zone area; however, traffic will continue to merge to one lane south and one lane north along Lexington Street.
  • Furthermore, should work require it, crews may need to enter outside of the jersey barrier zone. Important to note, all traffic management plans are in coordination with the City of Waltham and the local police department.

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Construction activities for the week of March 4, 2024:

  • This week, work crews focused their efforts with the construction of the 24” water main at Piety Corner.
  • This work included the excavation of 150 linear feet of trench for the electric duct bank, setting the rebar cage, pouring the concrete encasement, and setting the electric manhole. Additionally, the 12” water main between Jack’s Way and Lake Street was flushed, chlorinated, flushed again, and water quality samples were taken.
  • For next week, crews will work a normal schedule, Monday through Friday, from 7:00AM to 3:00PM with potential to work until 5:00PM. Crews will continue work to connect the 24”, 16.”, and 12” water mains located within the jersey barriers protected section at the corner.
  • Posted below is a slight change in the current traffic plan of the upcoming work at Piety Corner, which is expected to start in the next two weeks. The slight change expands the work zone area; however, traffic will continue to merge to one lane south and one lane north along Lexington Street.

Piety Corner Traffic Map:

Click on image to enlarge or view as a PDF here.

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Construction activities for the week of February 26, 2024:

  • This week, crews focused on the installation of the water main pipelines at Piety Corner on Lexington Street and associated support infrastructure.
  • These efforts included the continued construction of the 24” ductile iron water main pipeline and its thrust collars, which are in place to capture thrust from pressure within the pipe to prevent it from moving out of place.
  • Next week, the contractor will be working a normal schedule, Monday through Friday, from 7:00AM to 3:00PM with potential to work until 5:00PM. Work crews will remain at Piety Corner for several more weeks until moving on with the project.
  • Additionally, traffic will continue to merge to one lane south and one lane north along Lexington Street.

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Construction activities for the week of February 19, 2024:

  • This week, the work schedule was shortened due to the forecasted inclement weather on Tuesday; however, crews were able to make progress in constructing the new 36” and 24” water mains and accompanying appurtenances.
  • Crews focused their efforts at Piety Corner on Lexington Street, with work including the installation of an 8” blow off pipe and valves, additional work on two thrust collars (concrete was poured for one and the form was removed for the other), and the construction of drains.
  • Due to the upcoming holiday weekend and in order to complete mandatory safety training, crews will work an abbreviated scheduled next week.
  • The contractor will be on site Tuesday and Friday from 7:00AM to 3:00PM with potential to work until 5:00PM. Crews’ will remain focused on the construction of the 24” ductile iron water main and associated support structures at Piety Corner.
  • Traffic will be merged to one lane south and one lane north along Lexington Street as this work continues.

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Construction activities for the week of February 12, 2024:

  • This week, crews continued efforts constructing the new 36” water main and associated appurtenances. This ongoing work included the excavation, setting, and forming of thrust collars, the setting and preparing of a 36” horizontal butterfly valve and chamber, the construction of 51 linear feet of pipeline, and the excavation of a 24” water main.
  • Next week, crews will work a normal schedule; Monday through Friday from 7:00AM to 3:00PM with some days extending to 5:00PM in an effort to accelerate the work in the intersection. Traffic will be merged to one lane south and one lane north along Lexington Street.
  • Crews’ work will focus on the construction of the 24” ductile iron water main and the installation of the concrete thrust structures and meter chamber located at Piety Corner. The contractor is also expected to test and chlorinate the 12” water main located along Lexington Street between Jack’s Way and Lake Street in the coming weeks.

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February 12, 2024

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Installed City 12” main up to Lake Street

Installed pavement overlay for winter

Excavation for butterfly valve just north of Totten Pond Road

Butterfly valve and thrust collars being installed

Removing ledge for City 12” main

Construction activities for the week of February 5, 2024:

  • This week, crews focused on site preparation for work in the coming months. This included the digging of test pits at Piety corner to determine line and grade along the existing water mains, the placement of jersey barriers and the painting of temporary traffic lines, the excavation of a trench for the MWRA 36” water main, and the construction of associated water system infrastructure, such as fire hydrants, thrust blocks, tees, and butterfly and blow-off valves.
  • Additionally, another 12 cubic yards of rock was excavated this week and trench paving was conducted ahead of weekend travel.
  • Next week, crews will continue to work a normal schedule; Monday through Friday from 7:00AM to 3:00PM with some days extending to 5:00PM in an effort to accelerate the work in the intersection. Traffic will be merged to one lane south and one lane north along Lexington Street.
  • Crews will focus on the construction of the 36” water main on Lexington Street in front of the First Baptist Church, and the construction of thrust blocks to support the pipeline.

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Construction activities for the week of January 29, 2024:

  • This week, crews completed the installation of the 12” ductile iron water main pipeline between Lake Street and the old high school’s exit driveway (approximately 260 linear feet of pipeline), excavated the 6” water connection to the YMCA, and formed and placed rebar for the installation of thrust blocks to support the new pipeline.
  • Additionally, another 10 cubic yards of rock was excavated this week and 315 linear feet of trench paving was conducted along Lexington Street ahead of weekend travel.
  • Next week, crews will continue to work a normal schedule; Monday through Friday from 7:00AM to 3:00PM. When work is active, the current detour will remain in place along the roadway.
  • Crews will focus work on the installation of pipeline connections and hydrants for the 12” water main between Jack’s Way and Lake Street, and will resume with the construction of the 36” MWRA water main at the Lexington Street and Totten Pond Road intersection.

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Construction activities for the week of January 22, 2024:

  • This week, work crews returned to a normal schedule to continue the project’s progress along Lexington Street in the City of Waltham; Monday through Friday from 7:00AM to 3:00PM. When work is active, the current detour will remain in place along the roadway.
  • Work completed this week included the construction of approximately 310 linear feet of 12” ductile iron water main pipeline, the installation of several service connections, such as at the city’s old high school exit driveway area and a fire hydrant, and the preparation of other critical support infrastructure.
  • Additionally, approximately 15 cubic yards of rock was excavated. Today, trenches along Lexington Street will be paved ahead of weekend travel.
  • Next week, work crews will continue with the installation of the 12” ductile iron water main and the construction of thrust blocks to support the pipeline.

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Construction activities for the week of January 15, 2024:

  • Next week, crews will resume work activities with a normal schedule; Monday through Friday from 7:00AM to 3:00PM.
  • When work is active, the current detour will remain in place along Lexington Street.
  • Crews are expected to continue with the installation of the ductile iron water main pipeline and other work associated with the project.

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Construction activities for the week of January 8, 2024:

  • Due to Sunday’s winter storm event and inclement weather conditions that are currently being forecasted, crews will not be working on Lexington Street this week. Work crews are now expected to return to the project site the week of Monday, January 15, 2024.

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Construction activities for the week of January 8, 2024:

  • Next week, work crews will return to a normal schedule, Monday through Friday from 7:00AM to 3:00PM. Please note, weather conditions may impact the project’s anticipated schedule.
  • When work is active, the current detour will remain in place along Lexington Street.
  • Crews are expected to continue with the installation of the ductile iron water main pipeline and other work associated with the project.

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Construction activities for the week of December 18, 2023:

  • This week, crews were able to install approximately 500 linear feet of a new 12" ductile iron water main from Lake Street and moving southward, and constructed a high pressure water main crossing.
  • This afternoon, the water main trench will be paved ahead of the weekend.
  • Due to the upcoming holiday schedule, work crews will not be on site until Monday, January 8, 2024. At that time, the contractor will resume the installation of the water main pipeline and work associated with the project.

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Construction Activities for the week of December 18, 2023:

  • This week, crews constructed drain connections north of the new high school and at its entrance, constructed 82 linear feet of the 12” ductile iron water main, and conducted over 430 linear feet of roadway paving operations and line stripping from Totten Pond Road to Jack’s Way.
  • Next week, crews are expected to work Monday through Friday from 7:00AM to 3:00PM. Work fill focus on the continued construction of the 12” water main northward towards Lake Street. Additionally, a second crew will begin the construction of the 12” main from Lake Street and moving southward.
  • During work hours, the detour will remain in place along Lexington Street.

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Construction Activities for the week of December 11, 2023:

  • This week, crews continued efforts on the installation of the MWRA’s 36” water main northward towards Jack’s Way, and the 12” ductile iron water main pipeline north from Jack’s Way. 420 linear feet of the 36” main was constructed, and an additional 418 linear feet of the 12” pipeline was constructed.
  • Next week, crews will continue to focus on the installation of the two water mains, as well as skim coat paving between Totten Pond Road and Jack’s Way.
  • Additionally, crews are expected to work Monday through Wednesday from 7:00AM to 3:00PM, but work may run later into the day to ensure paving operations are completed. Separately, roadway line striping is currently scheduled for Thursday morning. During work hours, the detour will remain in place along Lexington Street.

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Construction Activities for the week of December 4, 2023:

  • With crews returning to a normal work schedule this week, they continued efforts on the construction of 280 linear feet of the MWRA’s 36” water main northward towards Jack’s Way. This work also included the construction of drain systems at the new high school driveway. Additionally, crews continued with the installation of approximately 400 linear feet of the 12” ductile iron water main pipeline north from Jack’s Way.
  • Ahead of weekend travel, crews will be paving roadway trenches on Friday afternoon.
  • Next week, crews will work their normal schedule, Monday through Friday, from 7:00AM to 3:00PM. During work hours, the detour will remain in place along Lexington Street.
  • Furthermore, crews will continue with the construction of the MWRA’s 36” water main and the installation of the 12” ductile iron main.

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Construction Activities for the week of November 27, 2023:

  • This week, crews worked on the construction of the MWRA’s 36” water main northward to the new high school and will now focus on getting past the new high school entrance on the way towards Jack’s Way. Additionally, crews continued efforts to install the 12” ductile iron water main pipeline going north from Jack’s Way. Also, several test pits are currently being excavated between Jack’s Way and Lake Street to identify the location of existing underground utilities. On Tuesday & Wednesday, crews paved roadway trenches ahead of holiday and weekend travel.
  • Next week, work crews will return to their normal schedules, Monday through Friday from 7:00AM to 3:00PM. During work hours, the detour will remain in place along Lexington Street.
  • Crews will pick up where they left off with the continued construction of the MWRA’s 36” water main and the installation of the 12” ductile iron main moving northward.

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Construction Activities for the week of November 20, 2023:

Next week, work crews will have an abbreviated scheduled due to the upcoming Thanksgiving holiday. The work schedule will be Monday through Wednesday (7:00AM to 3:00PM), and off Thursday and Friday. Work will resume again on Monday, November 27, 2023. When work is active, the detour will remain in place along Lexington Street.

  • This week, crews completed the removal of the temporary bypass water system. Additionally, several test pits north of Jack’s Way were excavated to identify the location of existing underground utilities, and important drainage infrastructure, such as drain manholes and connecting catch basins, were constructed between Totten Pond Road and Stanley Road.
  • On Friday, crews will be paving roadway trenches ahead of weekend travel.
  • Next week, crews will work to construct the MWRA’s 36” water main northward to the new high school and the 12” ductile iron water main pipeline going north from Jack’s Way.

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Construction Activities for the week of November 13, 2023:

Day work (7:00AM to 3:00PM) will resume Monday through Friday with the detour in place along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews finished connecting residential water services to the new main pipeline along Lexington Street for those that were on the temporary bypass system, which is currently being removed. Additionally, water service and drainage work located at the Totten Pond Road/Lexington Street intersection was underway. On Friday, roadway trenches will be paved ahead of weekend travel.
  • Next week, crews will work to construct the MWRA water main from near the new high school towards Jack’s Way. Drain connections south of Stanley Road will also continue.
  • Important to note, starting next week, traffic from Lincoln Street will be able to turn right onto Lexington Street towards Totten Pond Road.

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Construction Activities for the week of November 6, 2023:

Day work (7:00AM to 3:00PM) will be Monday through Friday with the detour in place along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews worked Tuesday through Friday connecting water service to the new main pipeline along Lexington Street. On Friday, roadway trenches were paved ahead of weekend travel.
  • Next week, crews will resume efforts to make water service connections along both the east and west side of Lexington Street. Additionally, water service and drainage work at the Totten Pond Road/Lexington Street intersection will continue.
  • Traffic between Totten Pond Road and Lincoln Street will again be restricted to northbound only for approximately two weeks. Traffic from Lincoln Street will not be able to turn right onto Lexington Street and will be directed left (northbound).
  • From Lexington Street heading northbound into Piety Corner there will be one westbound lane to Totten Pond Road and one northbound lane to Lexington Street.
  • Important to note, for Election Day there will be additional signage in place to guide traffic access to Jack’s Way.

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Construction Activities for the week of October 30, 2023::

Day work (7:00AM to 5:00PM) will continue Monday through Thursday with the detour in place (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews continued efforts to connect water service to the new main pipeline along the east side of Lexington Street. On Thursday afternoon, roadway trenches were paved ahead of weekend travel.
  • Next week, crews will resume efforts to make water service connections along both the east and west side of Lexington Street. Additionally, water service and drainage work at the Totten Pond Road/Lexington Street intersection will commence, and take approximately two to three weeks to complete.
  • Beginning Monday, October 26, 2023, traffic between Totten Pond Road and Lincoln Street will again be restricted to northbound only for approximately two weeks. Traffic from Lincoln Street will not be able to turn right onto Lexington Street and will be directed left (northbound).
  • From Lexington Street heading northbound into Piety Corner there will be one westbound lane to Totten Pond Road and one northbound lane to Lexington Street.
  • Important to note, for Election Day there will be additional signage in place to guide traffic access to Jack’s Way.
  • Lastly, starting the week of Monday, November 6, 2023, the contractor’s fall/winter schedule will be five days a week from 7:00AM to 3:s00PM.

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Construction Activities for the week of October 23, 2023::
Day work (7:00AM to 5:00PM) will continue Monday through Thursday with the detour in place (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews continued efforts to construct the MWRA’s water main at Lincoln Street by installing nearly 650 linear feet of pipeline, and made several sewer and water connections along Lexington Street.
  • Additionally, roadway trenches were paved on Thursday afternoon, ahead of weekend travel.
  • Next week, crews will resume efforts to make water service connections along the east side of Lexington Street.
  • Please note, starting the week of Monday, November 6, 2023, the MWRA’s contractor’s for the fall/winter schedule will be five days a week from 7:00AM to 3:00PM.

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Construction Activities for the week of October 9, 2023:

In observance of Columbus Day Weekend, day work (7:00AM to 5:00PM) will continue Tuesday through Friday with the detour in place along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews constructed the water main and sewer main connections between Stanley Road and Lexington Street, continued construction of the new sewer main lines, and installed new sewer manholes.
  • Additionally, the new 12” high pressure water main from Jack’s Way to the new high school, and the new lower pressure main from Lincoln Street to Stanley Road were pressure tested, chlorinated, and water samples were taken.
  • Roadway trenches were paved on Thursday afternoon, ahead of weekend travel.
  • Next week, crews will resume the construction of the 36” MWRA water Main at Lincoln Street to Curve Street, and continue with sewer main construction efforts to Jack’s Way and sewer service connections.

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Construction Activities for the week of October 2, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday with the detour in place (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews continued with the construction of 147 linear feet for the new 12” ductile iron high and low pressure water mains. The high pressure water main was connected to the existing main at Jack’s Way and to the 12” water service pipe at the new high school.
  • Additionally, efforts resumed with the construction and installation of 324 linear feet for the new sewer main moving north toward Jack’s Way from the new high school. Also, other sewer and water infrastructure was installed, including sewer manholes and water hydrants.
  • Roadway trenches were paved on Thursday afternoon, ahead of weekend travel.
  • Next week, crews will continue with sewer service connections along the west side of Lexington Street to Curve Street, the construction of the sewer main to Jack’s Way, the flushing and testing of water mains, and further work on drains off of Lexington Street.

The construction of the high and low pressure water main along Lexington Street.

The 12” ductile iron connection for new High School.

The 12”high pressure water main connection at Jacks Way.

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Construction Activities for the week of September 25, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday with the detour in place (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week, crews continued to make progress constructing the new ductile iron high and low pressure water mains and the installation of the new reinforced concrete pipe drain.
  • Specifically, 1,202 linear feet of water main pipeline was constructed, 126 linear feet of pipe drain installed, several residential sewer connections were made, and system infrastructure, such as drain manholes, were installed.
  • Roadway trenches are being paved on Friday, ahead of weekend travel.
  • Next week, crews will continue efforts to construct connections to the high and low pressure water mains, along with the drilling on Lexington Street north of Jack’s Way

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September 18, 2023 UPDATE:

Due to weather conditions, construction activities scheduled for today along Lexington Street in Waltham has been postponed. For this week, work is expected to resume with the detour in place starting on Tuesday, September 19, 2023, through Friday, September 22, 2023, from 7:00AM to 5:00PM. We apologize for any inconvenience this reschedule may have caused.

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Construction Activities for the week of September 18, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday with the detour in place (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week’s efforts included the installation of sewer service lateral connections to several homes, the excavation and installation of 534 linear feet of reinforced concrete pipe drain, the installation of sewer and water infrastructure, such as drain manholes, and the excavation and installation of 583 linear feet of ductile iron water mainlines.
  • Roadway trenches were paved on Thursday afternoon ahead of weekend travel.
  • Next week, crews will excavate and install high and low pressure ductile iron water mains, the excavation and installation of the 36” drain to the new high school, start water service connections between Totten Pond Road and Lincoln Street, and the prepping for additional drain construction.

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Construction Activities for the week of September 11, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • Crews worked this Friday due to being off during the Labor Day holiday. This week’s efforts included the excavation and installation of 382 linear feet of water main pipeline, the installation of sewer and water infrastructure, such as water main tie-ins, a sewer manhole, and diameter drain manholes, the excavation and installation of 223 linear feet of reinforced concrete drainage pipe, and the installation of several water and sewer main connections to Curve Street.
  • Roadway trenches were paved on Friday afternoon ahead of weekend travel.
  • Next week, crews will excavate and install sewer service connections on the west side of Lexington Street between Lincoln Street and Curve Street, and continue the excavation and installation of the 36” drain to the new high school.

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Construction Activities for the week of September 4, 2023:

Due to the upcoming Labor Day holiday, day work (7:00AM to 5:00PM) will continue Tuesday through Thursday with potential work on Friday along Lexington Street between Totten Pond Road and Stanley Road.

  • This week’s work included the completion of sewer connections to several homes, the installation of two gate valves, and the excavation and installation of more than 500 linear feet of water main pipelines.
  • Roadway trenches were also paved on Thursday ahead of holiday weekend travel.
  • Next week, crews are expected to continue with the excavation and installation of water main pipeline northward towards Clarks Road, conduct sewer and water connections from Curve Street, and the excavation and installation of reinforced concrete pipe that is associated with stormwater drainage.
  • Important to note, the Lexington Street detour will remain in effect for southbound traffic while construction activities are occurring; however, traffic to the high school, middle school, and the YMCA will be allowed to travel southbound (please see detour map below). Additionally, police details and roadway signage are on site to assist vehicular traffic.

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Construction Activities for the week of August 28, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week’s work included the completion of sewer connections to several homes, the excavation and installation of 322 linear feet of sewer line, the installation of infrastructure, including manholes, a pitot chamber, and a fire hydrant, and the excavation and installation of 375 linear feet of a water main line to Clark Road.
  • Roadway trenches were also paved on Thursday ahead of weekend vehicular travel.
  • Next week, crews are expected to continue with sewer service connections along Lexington Street between Lincoln Street and the new high school site, and the excavation and installation of a water main to Lincoln Street.
  • Important to note, the Lexington Street detour will remain in effect for southbound traffic while construction activities are occurring; however, traffic to the high school, middle school, and the YMCA will be allowed to travel southbound (please see detour map below). Additionally, police details and roadway signage are on site to assist vehicular traffic.

Lexington Street Detour Map:

Click on image to enlarge or view PDF here.

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Construction Activities for the week of August 21, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Stanley Road.

  • This week’s work included the completion of sewer connections to several homes, the excavation and installation of 329 linear feet of sewer line, the installation of manholes and a water gate valve, and the pressure testing and chlorination of a 972 foot water main between Totten Pond Road and Lincoln Street.
  • Roadway trenches were also paved on Thursday ahead of weekend vehicular travel.
  • Next week, crews are expected to conduct sewer service connections between Lincoln Street and Curve Street, start water service between Totten Pond Road and Lincoln Street, and continue the excavation and installation of the sewer main to Stanley Road.
  • Additionally, the detour will remain in place while construction activities are occurring. Police details and roadway signage are on site to assist vehicular traffic.

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Construction Activities for the week of August 14, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Lincoln Street.

  • Please note that due to inclement weather that occurred this past Tuesday, crews were rescheduled to work today.
  • This week’s work included the completion of a water main connection from Lexington Street to Totten Pond Road, the excavation and installation of 400 linear feet of sewer line, and the flushing of a water main.
  • Roadway trenches will be paved today ahead of weekend vehicular travel.
  • Next week, crews are expected to continue working on the excavation and installation of sewer service connections between Totten Pond Road and Lincoln Street, the excavation and installation of a sewer main to Stanley Road, and pressure testing and chlorination of a new water main.
A detour will remain in place while construction activities are occurring. Additionally, police details and roadway signage are on site to assist vehicular traffic.

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Construction Activities for the week of August 7, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Lincoln Street.

  • This week’s work included excavation and installation of over 500 linear feet of water mains, the installation of a city fire hydrant, and the paving of trenches along the roadway to assist weekend vehicular travel.
  • Important to note, two work crews will be on site this upcoming week to increase productivity.
  • Next week, crews are expected to continue working on the excavation and installation of water main connections, sewer mains and services, and potential chlorination and testing of a new water main.
  • A detour will remain in place while construction activities are occurring. Additionally, police details and roadway signage are on site to assist vehicular traffic.

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Construction Activities for the week of July 31, 2023:

Day work (7:00AM to 5:00PM) will continue Monday through Thursday (with any rescheduled work occurring on Friday) along Lexington Street between Totten Pond Road and Lincoln Street.

  • This week, work crews excavated and installed 130 linear feet of a sewer main, installed a sewer manhole, connected several sewer services, and installed over 200 linear feet of water main.
  • Following these efforts, the trenches were paved along the roadway to assist weekend vehicular travel. Important to note, crews were on site on Friday afternoon to address a failed water main valve.
  • Next week, work crews are expected to continue work on the ductile iron water main and begin excavation and installation of the MWRA water main.
  • A detour will remain in place while construction activities are occurring. Additionally, police details and roadway signage are on site to assist vehicular traffic.

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Construction Activities for the week of July 24, 2023:

Starting on Monday, July 24, 2023, construction activities will switch to days from 7:00AM to 5:00PM Monday through Thursday along Lexington Street.

  • Working with the City of Waltham, detours have been put in place. Lexington Street between Lake Street and Totten Pond Road will be closed for southbound travel while the northbound side will remain open to traffic.
  • Important to note, there may be days where work will extend beyond 5:00PM due to unforeseen project delays. Additionally, work is weather dependent and any inclement weather during the week may cause work to be rescheduled for crews to work Friday. Lexington Street will re‐open at 7:00PM after each workday. There is no work scheduled for Saturdays and Sundays.
  • Traffic patterns will be clearly marked and police details will be on site to assist with the flow of traffic.
  • Please read this recently distributed letter regarding the work change and a map of the detour in place.

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Update: July 18, 2023:

MWRA continues to work with the City of Waltham to address concerns raised by residents over the impact of night work. The Authority is committed to improving production while trying to reduce the impact on neighbors. For the remainder of the week, our contractor will be working at the Totten Pond Road Intersection installing a 12 inch water main. Thursday evening, the paving contract will repair the trench work on Lexington Street. There will be no new pipe installation at night on Lexington Street. New work plan information for the week of July 24th will be sent in Friday’s weekly update. Thank you.

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Construction Activities for the week of July 17, 2023:

Night work (8:00PM to 6:00AM) will continue Monday through Thursday (into Friday morning) along Lexington Street from Totten Pond Road to Lincoln Street.

  • Work crews resumed the excavation and installation of the sewer pipe, storm drain, and sewer manholes along the roadway and have reached Lincoln Street.
  • Once these efforts have been completed, crews will begin the installation of the ductile iron water main starting at the Totten Pond Road intersection.
  • As a reminder, northbound traffic is detoured to Totten Pond Road; southbound traffic is not being detoured.
  • Additionally, police details will remain on site during work hours to assist with the flow of traffic.

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Construction Activities for the week of July 10, 2023:

Night work (8:00PM to 6:00AM) will resume Monday through Thursday (into Friday morning) along Lexington Street from Totten Pond Road to Lincoln Street.

  • Work crews will continue their efforts to install the new sewer main, storm drain, and manholes along Lexington Street.
  • As a reminder, northbound traffic is detoured to Totten Pond Road; southbound traffic is not being detoured.
  • Additionally, police details will remain on site during work hours to assist with the flow of traffic.

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Update for June 30, 2023:

There will not be any construction activities for the week of July 3, 2023. Night work will resume the week of July 10, 2023.

  • This past week, crews continued their efforts to install sewer and drain lines, and drain manholes.
  • Temporary paving was conducted to cover the excavated areas for the week.
  • When work resumes, crews will continue along Lexington Street from Totten Pond Road, and proceed north.

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Construction Activities for the week of June 26, 2023:

Crews will work nights, Monday through Friday from Totten Pond Road to Lincoln Street.

  • This past week, crews continued work to install the new sewer main and storm drain.
  • These efforts will resume next week, including the installation of manholes.
  • As a reminder, northbound traffic is detoured to Totten Pond Road; southbound traffic is not being detoured. Police details will remain on site during work hours to assist with the flow of traffic.

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Construction Activities for the week of June 19, 2023:

Work crews will be working Monday through Friday, with night work continuing from Totten Pond Road to Lincoln Street starting on Tuesday.

  • This past week, work crews were able to complete all residential connections between Totten Pond Road and Jacks Way to the water bypass system.
  • Additionally, crews were able to begin the installation of a new sewer main. This upcoming week, crews will continue with the installation of the main.
  • Please note that the MWRA’s original nighttime detour plan is currently in place. Police details will be on site to assist with the flow of traffic.

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Starting tonight, June 15, 2023, vehicular traffic will be directed along the MWRA’s original nighttime detour plan, which is:

Click on image to enlarge or view PDF here.

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Construction Activities for the week of June 12, 2023:

Work crews will be working Monday through Friday, with night work from Totten Pond Road to Lincoln Street starting on Tuesday.

  • On Monday, crews will work to complete residential connections to the bypass system.
  • Overnight work will focus on sewer and drain line installation.
  • Additionally, traffic impacts will include lane shifts and occasional alternating traffic. Police details will be on site to assist with the flow of traffic.

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Construction Activities for the week of June 5, 2023:

Work crews will resume working Monday through Friday.

  • This past week crews installed hoses from the bypass pipe to each home. This coming week homes will be connected to the bypass system.
  • Additionally, crews will continue digging test pits to ensure ground conditions are suitable for the work ahead.
Furthermore, night work has now been scheduled to begin on Monday, June 12, 2023

Construction Activities for the week of May 29, 2023:

Due to the upcoming Memorial Day holiday on Monday, crews will be working Tuesday through Friday.

  • Work crews expect to begin the process of connecting the recently installed bypass pipe to residential homes early to mid-week.
  • Additionally, crews will continue with their efforts to vacuum excavation of the gas services for inspection.
  • Important to note, night work is now expected to commence the week of June 5th.

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Construction Activities for the week of May 22, 2023:

Crews will be working Monday through Friday.

  • Crews worked diligently this week to ensure the bypass pipe was in good working order. Following this process, the pipe was pressure tested, chlorinated, and de-chlorinated.
  • Starting on Monday, May 22nd, water samples will be collected and analyzed to confirm potable standards are met. Later in the week, connections of the bypass pipe to residential homes will commence.
  • Important to note, night work has shifted to start after the Memorial Day holiday weekend, and is set to begin on Tuesday, May 30th

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Construction Activities for the week of May 15, 2023:

Crews will be working Monday through Friday.

  • With the bypass pipe in place along Lexington Street and side streets, crews will continue flushing and chlorinating it for system use.
  • After flushing, chlorinating, and de-chlorinating have taken place, water samples from the bypass pipe will be collected and analyzed.
  • Once water samples confirm potable standards have been met, connections of the bypass pipe to residential homes will commence.

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Construction Activities for the week of May 8, 2023:

Crews will be working Monday through Friday.

  • After last week’s installation of the 6” bypass pipe along both sides of Lexington Street and side streets, flushing and chlorinating of the pipe will take place.
  • Following the start of flushing and chlorinating, the bypass pipe will then be de-chlorinated and a sample will be taken and analyzed to ensure the water meets potable standards.
  • Connections to the bypass to residential homes may be possible by Thursday or Friday.
  • Additionally, this week’s work will include the excavation and installation of insertion valves along Lexington Street and Totten Pond Road.

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Construction Activities for the week of May 1, 2023:

Crews will be working Monday through Friday.

  • Crews will continue with the installation of the by-pass pipe between Totten Pond Road and Jack’s Way.
  • Temporary water pipe testing will also continue.
  • Important to note, residential hook-ups to the bypass are scheduled for the week of May 8th. A flyer to homeowners is expected to be delivered early in the week.
  • Additionally, night work at the Totten Pond intersection is currently scheduled to commence mid-May. This work is dependent on the progress made with the residential hook-ups to the bypass.

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Construction Activities for the week of April 24, 2023:

Crews will be working Monday through Friday.

  • Crews will continue to lay out of temporary water mains - Sub-contractor (Bizko) is scheduled to continue installing the 6” temporary bypass pipe along public easements between Totten Pond Road and Jack’s Way.
  • Temporary water pipe testing will begin and continue through the following week in order to begin residential connections.
  • Flyers will be distributed to homeowners before bypass pipes are connected to residences (currently expected in early May).
  • Test pits will continue to be dug between Totten Pond Road and Jack’s Way

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Construction Activities for the week of April 17, 2023:

Crews will NOT be working on Patriot’s Day (Monday) but will be on site Tuesday - Friday

  • Crews will continue to lay out of temporary water mains.
  • Sub-contractor (Bizko) is scheduled to continue installing the 6” temporary bypass pipe along public easements. Notification flyers will be distributed to homeowners before bypass pipes are connected to residences (currently expected in early May).

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Construction Activities for the week of April 10, 2023:

  • Lay out of temporary water mains.
  • Sub-contractor (Bizko) is scheduled to begin installing the 6” temporary bypass pipe along public easements. Notification flyers will be distributed to homeowners before bypass pipes are connected to residences.

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March 28, 2023

Presentation given at Public Meeting (PDF)

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Updated: May 24, 2024
Original Post: February 1, 2022