Intermediate High Pipeline Improvements CP2, Rehabilitation of Sections 24 and 25 Water Mains (MWRA Contract 6956)

Project type
Water
Project status
Communities

About this Project

This MWRA project seeks to interconnect the two geographically distinct and hydraulically unconnected Intermediate High pressure zones (Newton to the south and Arlington/Belmont/Watertown to the north) to provide critical water system redundancy and operational flexibility in the event of water main pipe failures. The project will focus on the replacement and hydraulic pipe size increase from 16 to 20 inches along the 126 year old Section 25, the cleaning and lining rehabilitation of Section 24, which is 127 years old, and the replacement of Water Meters 2 and 40 (both serving Watertown). The majority of this work is located in Watertown with minor work in Newton at the crossing of the Charles River. This project will also reroute Section 25 from Common Street in Watertown, to Bellevue Road, Russell Avenue and extending along Mount Auburn. This $18.6 million project was awarded to Albanese D&S, Inc. in May 2023 for a contract term of 912 calendar days from the Notice to Proceed.

Summary Scope of New Work

The rehabilitation work for Sections 24 and 25 Water Mains will include:

  • The cleaning and cement mortar lining of 3,300 linear feet of the 20-inch cast iron water main along Section 24;
  • The placement of 5,900 linear feet of 20-inch ductile iron water main along Section 25 (hydraulic increase from 16-inch to 20-in).0 This work include placing a new route for the water main that will avoid lower Common Street;
  • The installation of new valves and appurtenances along Sections 24 and 25;
  • The replacement of Meter 40 and the relocation and replacement of Meter 2(both serve Watertown);
  • The installation of a new pressure reducing valve at Meter 40 for Intermediate High (HGL 320) to Southern High (HGL 280) service for redundant water supply; and,
  • The replacement and relocation of water, sewer, and drain lines within the new Section 25 route along Russell Avenue and Bellevue Road.

Section 24 construction work will occur along Charles River Road and Irving Street in the City of Watertown and St. James Terrace in the City of Newton. Section 25 construction work will occur along Mt. Auburn Street, Russell Avenue, Bellevue Road, and Common Street in the City of Watertown. Work activities are expected to begin in fall 2023. Property owners adjacent to the project will be offered a pre-construction survey of their property at no cost prior to the start of construction conducted by Seismic Solutions, Inc.

For more information, please contact MWRA Public Affairs.

Updates

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March 4, 2025

Project Update:

  • Removal of Cast Iron Pipe at Old Meter 2 on Common Street
  • Installed New 20-inch Horizontal Gate Valve on Common Street in Belmont
Installing air release valve on Common Street in Watertown
Installing air release valve on Common Street in Watertown
Gate Valve Installation at Old meter 2 on Common Street
Gate Valve Installation at Old Meter 2 on Common Street
Pipe Meter at Old Meter 2 on Common Street
Pipe Meter at Old Meter 2 on Common Street
Existing 16-inch Cast Iron Pipe
Existing 16-inch Cast Iron Pipe
 20-inch Line Stop on Common Street in Belmont
20-inch Line Stop on Common Street in Belmont
New 20-inch Horizontal Gate Valve on Common Street in Belmont
New 20-inch Horizontal Gate Valve on Common Street in Belmont

November 6, 2024

Permanent trench paving on Mount Auburn Street at Meter 40
Permanent trench paving on Mount Auburn Street at Meter 40
Permanent Trench Paving on Mount Auburn at Common Street
Permanent Trench Paving on Mount Auburn at Common Street
Permanent Trench Paving on Mount Auburn at Common Street
Permanent Trench Paving on Mount Auburn at Common Street
 Remove and Replace MWRA pipe on Common Street
Remove and Replace MWRA pipe on Common Street
New 20-inch Pipe Crossing Utilities on Common Street.
New 20-inch Pipe Crossing Utilities on Common Street
Installing New 20-inch Horizontal Gate Valve on Common Street
Installing New 20-inch Horizontal Gate Valve on Common Street

October 2, 2024

Temporary Road Closure for Meter 2 Installation Vellevue Road in Watertown
Temporary Road Closure for Meter 2 Installation - Bellevue Road (Watertown)
New Meter 2 Installation Bellevue Road in Watertown
New Meter 2 Installation - Bellevue Road (Watertown)
New Meter 2 cabinet Bellevue Road in Watertown
New Meter 2 cabinet – Common Street at Bellevue Road
Meter 40 Cabinet & Sidewalk Restoration Mount Auburn Street
Meter 40 Cabinet & Sidewalk Restoration - Mount Auburn Street
12-inch line stop for city of Watertown Common Street at Orchard Street
12-inch line stop for city of Watertown - Common Street at Orchard Street

August 8, 2024

Leak repair at Charles River Crossing (Watertown)
Leak repair at Charles River Crossing (Watertown)
Leak repair at Charles River Crossing (Watertown)
Leak repair at Charles River Crossing (Watertown)
Installing 18-inch PVC Watertown Drain on Russell Street
Installing 18-inch PVC Watertown drain on Russell Street

April 2, 2024

Meter 40 pipe installation on Mount Auburn Street in Watertown
Meter 40 pipe installation on Mount Auburn Street in Watertown
Meter 40 pipe installation on Mount Auburn Street in Watertown
Meter 40 pipe installation on Mount Auburn Street in Watertown
New Water main services on Russell Avenue in Watertown
New water main services on Russell Avenue in Watertown
New Water main services on Russell Avenue in Watertown
New water main services on Russell Avenue in Watertown
Crew working on Mount Auburn Street during early morning hours
Crew working on Mount Auburn Street during early morning hours
Excavation Complete on 14 Saint James Terrace in Newton
Excavation Complete on 14 Saint James Terrace in Newton
Excavation Complete on 14 Saint James Terrace in Newton
Excavation Complete on 14 Saint James Terrace in Newton
Air Valve installation work Charles River Bank (Watertown)
Air Valve installation work Charles River Bank (Watertown)

February 14, 2024

Verizon Work on Mount Auburn Street
Verizon Work on Mount Auburn Street
Installing 12” Watertown Water to Meter 40 Mount Auburn Street
Installing 12” Watertown Water to Meter 40 Mount Auburn Street
Watertown’s Water and Sewer main Work on Russell Avenue
Watertown’s Water and Sewer main Work on Russell Avenue
Gate Valve Installation Work on Saint James Terrace (Newton)
Gate Valve Installation Work on Saint James Terrace (Newton)
Excavation Support 14 Saint James Terrace (Newton)
Excavation Support 14 Saint James Terrace (Newton)
Excavation Support 14 Saint James Terrace (Newton)
Excavation Support 14 Saint James Terrace (Newton)