Utilities & Infrastructure Projects

Amherst College – Infrastructure Project

The Infrastructure Improvement Project significantly updated a large portion of Amherst College’s systems that support every facility on campus. Client:    Amherst College Designer:    BVH Integrated Services   Conversion of the campus-wide primary electrical distribution from 4,800 volts to 13,800 volts. Switchover of all main utilities. Steam, water and chilled water system upgrades. Storm… View Article

Baileyville Compressed Natural Gas Filling Station

Baileyville Compressed Natural Gas (CNG) Station was an EPC contract awarded to DOC which included the design and construction of a fast fill CNG trailer loading station. The station consisted of four Ariel Compressors and two PSD dryers with a max thru put of 8000 SCFM at 4000 psi. The station is completely automated to… View Article

Biosolids Heat Drying Facility, Cumberland, MD

As Design/Builder, Daniel O’Connell’s Sons collaborated with NEFCO (an O’Connell subsidiary) in the design, permitting, construction and operation of this new heat drying facility in Cumberland, Maryland. Client:    City of Cumberland, MD Designer:    Tighe & Bond Engineers Capacity:    11 dry tons/day   Existing building renovated to receive and process digested sludge from… View Article

Biosolids Processing Facility, Detroit, MI

The City of Detroit selected the Design/Build team of NEFCO (an O’Connell subsidiary) and DOC for the design, permitting, construction, and operation of a new Biosolids Drying Facility.  Client:    Great Lakes Water Authority Designer:    Tighe & Bond Engineers, Wade Trim Size:    47,500 SF Capacity:    20 dry tons/day   Constructed on a… View Article

Bucklin Point WWTF Biogas Cogeneration System

The work included of installation of a new Biogas Cogeneration System at the Bucklin Point Wastewater Treatment Facility in East Providence, RI. Client:    Narragansett Bay Commission Designer:    Brown & Caldwell Size:    46 MGD   New concrete equipment pad. New biogas conditioning equipment. Gas blending equipment. Biogas fueled cogeneration equipment. Associated heat recovery… View Article

Bucklin Point WWTF Upgrades

Work consisted of modifications to provide improved nitrogen removal at the Bucklin Point Wastewater Treatment Plant located in East Providence, RI. Client:    Narragansett Bay Commission Designer:    CDM Smith Size:    46 MGD   Six new final clarifiers. Two new sludge thickeners. New sludge pumping station, RAS Pump vault and force main. Modifications to… View Article

Burrillville Compressed Natural Gas Station Upgrade

An extensive gas yard upgrade, this project consisted of Mechanical, Civil and Electrical work done for Spectra Energy in Burrillville, RI. Daniel O’Connell’s Sons served as the Civil subcontractor and handled all site preparation to include an in-depth analysis of the preliminary layout, extensive safety coordination with other subcontractors, and protection of utilities external to… View Article

Central Artery Vent Building No. 4, Boston, MA

Part of Boston’s Central Artery project, construction of Vent Building No. 4 included fresh air intake and exhaust vent stacks for the new underground Central Artery, a 310-car parking garage, and renovations to the MBTA’s Haymarket Station.  Client:    MassDOT Designer:    Bechtel/Parsons/Brinkerhoff Size:    65,000 SF   New Vent Building consisting of three levels… View Article

Charles River Medway WWTP Phase C Upgrades

This project completed CRPCD’s Capital Improvements Plan with Phase C focused on improving phosphorus removal and the disinfection system. Client:    Charles River Pollution Control District Designer:    Kleinfelder SEA Size:    5.7 MGD   Improvements to phosphorus removal capabilities. Replacement of the disinfection system. New instrumentation and control systems. New mechanical processing equipment. Modification… View Article

Clinton WWTP Phosphorus Reduction Facility

Construction of a new discfilter phosphorous reduction system and building enclosure at the MWRA Wastewater Treatment Plant in Clinton, MA. Client:    MWRA Designer:    Stantec Size:    3 MGD   1-story masonry Phosphorus Reduction Building foundation and superstructure. New submersible disc filter influent pumps and automatic backwash disc filter equipment. New mechanical mixers and… View Article

Cobble Mountain Surge Tank Replacement

This project involved the replacement of steel hydropower surge tank at the Cobble Mountain Powerhouse in Granville, MA. Client:    Springfield Water & Sewer Commission Designer:    CDM Smith Size:    207 FT tall surge tank   Demolition of the existing 207’ tall, 25’ diameter steel standpipe, taken down in sections. New 207’ tall replacement… View Article

Deer Island Primary & Secondary Clarifier Rehab

Rehabilitation adn cleaning of Primary and Secondary Clarifiers at the Deer Island Wastewater Treatment Plant serving the greater Boston area.  Client:    MWRA Designer:    CDM Smith Size:    1,200 MGD   Cleaning and repairs in 48 primary clarifiers and 54 secondary clarifiers. Each clarifier was cleaned, and any necessary concrete, expansion joint and Linabond… View Article

Fall River CSO Disinfection Facility

Part of a larger CSO project in the city of Fall River, MA, this project involved construction of a new screening and disinfection facility. Client:    City of Fall River, MA Designer:    CDM Smith   New multi-functional building. Underground screening and disinfection facility. Two 6 MGD pumps. Eight grinder pumps. New chemical contact tank…. View Article

Fields Point WWTF Upgrade

This project consisted of upgrades to Rhode Island’s largest wastewater treatment facility in order to reduce the total amount of nitrogen discharged into Narragansett Bay. Client:    Narragansett Bay Commission Designer:    Kleinfelder SEA Size:    200 MGD   Project Features New Integrated Fixed Film Activated Sludge (IFAS) process for Nitrification. Aeration tanks subdivided into… View Article

Gardner Falls Hydroelectric Tailrace #2 Repair Project

Replacement of turbine Unit #2, originally installed in 1904, at the Gardner Falls Hydroelectric Facility located on the Deerfield River in the town of Buckland, MA. Client:    Essential Power Massachusetts LLC Designer:    Kleinschmidt Size:    3.5 MW   Support of excavation system and underpinning systems. Excavation support system consisted of drilled-in minipiles and… View Article

Grove Street Water Treatment Plant

Construction of a new water treatment plant to remove iron and manganese from the well water. Client:    Town of Franklin, MA Designer:    CDM Smith Size:    1.22 MGD Project Features New 5,195 SF water treatment plant building Two pressure filtration vessels Cast-in-place concrete tanks Process equipment Modifications to Well Stations Nos. 3 and… View Article

Hanscom Air Field Runway 11-29 Rehabilitation

This fast-paced project involved repaving of Runway 11-29, the most-used runway at Hanscom Air Field located in Bedford, MA. Client:    Massachusetts Port Authority Designer:    McFarland Johnson Size:    7,000 FT runway   Milling and rubblizing the original concrete runway below. Paving and striping new asphalt. Reclaiming of the end areas. Totaled over 50,000… View Article

Hanscom Airport Rescue Firefighting & CBP Facility

The project included the construction of a new Airport Rescue and Firefighting Facility (ARFF) / United States Customs and Border Protection Facility (CBP) at Laurence G. Hanscom Air Field.      Client:    Massachusetts Port Authority Designer:    saam architecture Size:    11,000 SF Photography:    2019 Christian Phillips   Project Features Meets all the… View Article

HG&E Dam Rubber Flashboard Installation

Installation of a new rubber flashboard for Holyoke Gas and Electric Company to allow adjustment of the dam crest elevation at various river flows. Client:    Holyoke Gas and Electric Company Designer:    Northeast Generation Services   Removed several feet of original dam crest. Air supply ducts placed. New concrete dam crest and pier walls…. View Article

HG&E North Canal Substation

This aggressively paced project involved the performance of all Civil work for a new power substation as a subcontractor for State Electric Corporation. Client:    Holyoke Gas and Electric Company   Excavation, ductbanks and backfill. Caissons and foundations. Precast structures. Soil stockpiling, testing and disposal of contaminated soils. Completed in six months.

Hudson Valley Regional Airport ARFF/SRE Building

Construction of a new combined aircraft rescue and firefighting (ARFF) and snow removal equipment (SRE) building. Client:    County of Duchess Department of Public Works Designer:    C&S Companies Size:    13,000 SF Photographer:   C&S Companies  Project Features Custom curved roof over the maintenance garage Exterior façade elements include masonry, storefront and three types… View Article

Indian Orchard Pump Station

As part of SWSC’s broader system improvement program, this project involved rehabilitation of the antiquated systems at the Indian Orchard Pump Station in Springfield, MA. Client:    Springfield Water & Sewer Commission Designer:    MWH Americas Inc. Capacity:    35 MGD   Complete gutting of pumping and mechanical systems in the pump station. Four new… View Article

John Carroll Water Treatment Plant

This project included the installation of ultraviolet (UV) disinfection equipment at the John J. Carroll Water Treatment Plant in Marlborough, MA. Client:    MWRA Designer:    CH2MHill (now Jacobs) Capacity:    405 MGD   Twelve new in-line ultraviolet units. New HVAC and electrical systems controls. Demolition of concrete roofs and baffle walls in the two… View Article

Kennebec Summit Natural Gas Pipeline

This expansion of Maine’s Natural Gas distribution network included over 80 miles of new pipeline and nine regulator stations, which brings alternative heating fuel to 15,000 homes and businesses in the Kennebec River Valley. DOC was originally contracted by Summit Natural Gas of Maine to install a length of 8-inch mainline, and to manage and… View Article

Liberty Utilities Liquid Natural Gas Station Upgrades

Daniel O’Connell’s Sons served as the General Contractor for owner Liberty Utilities in their selective upgrading of two Liquid Natural Gas (LNG) stations. The first project was located in Tilton, NH and consisted largely of the replacement of underground glycol piping. DOC oversaw fabrication and installation of all piping to include the reconfiguration of the… View Article

Logan Airport Taxiway C Rehabilitation

This project for the Massachusetts Port Authority involved rehabilitation of Logan International Airport Taxiway C in East Boston. Client:    Massachusetts Port Authority Designer:    WSP, Inc.   Milling and rubblizing existing Taxiway C. Paving and striping new asphalt. Construction of a new Stub Taxiway.

Logan Central Heating Plant Chiller Replacements

Replacement of two chillers at Logan International Airport’s Central Heating Plant.  Client:    Massachusetts Port Authority Designer:    WSP, Inc.  Project Features Two new centrifugal electric and steam turbine water chillers. New concrete equipment pads. New access doorway and rigging. Associated piping connections, pumps and piping. Removal of existing chillers.

Lyman Street Bridge Replacement

Replacement of the Lyman Street Bridge superstructure over the first level canal in Holyoke, MA.  Client:    MassDOT Designer:    Commonwealth Engineers, Inc.   New steel beam bridge superstructure and reinforced concrete deck. Demolition and removal of the existing bridge. Earth excavation and backfill. Concrete abutments. Concrete sidewalks and CP-PL2 barriers. Relocation of existing utilities… View Article

Mansfield-Foxboro-Norton Regional WPCF Upgrades

Major process upgrade to the Mansfield-Foxboro-Norton Regional Wastewater Treatment Plant to treat all existing and future flow at more stringent nutrient limits. Client:    MFN Wastewater Regional District Designer:    CDM Smith Capacity:    4.14 MGD   Four-stage Bardenpho process upgrade. New anoxic tanks and modifications to existing aeration basins. New aeration blower system. New secondary clarifier… View Article

MDC Hartford Aeration & Final Settling Tanks

The project involved construction of two new aeration tanks and two new final settling tanks at the Water Pollution Control Facility in Hartford, CT. Client:    MDC Hartford Designer:    Malcolm Pirnie, Inc. Capacity:    50 MGD   Two new 90’ x 200’ concrete Aeration Tanks. Two new 125’ diameter concrete Final Settling Tanks. Heavy… View Article

Memorial Bridge, Springfield, MA

Complete reconstruction of the seven-span, 1500-FT Memorial Bridge in Springfield, MA. The historic concrete bridge carries nearly 25,000 vehicles per day over the Connecticut River. Client:    MassDOT Designer:    Fay, Spoffard & Thorndike (now Stantec) Size:    1,500 FT   Replacement of the entire deck system. 775 tons of steel. 12,000 CY of poured… View Article

Michael S. Van Leesten Memorial Pedestrian Bridge

The Michael S. Van Leesten Memorial Pedestrian Bridge was built on the existing piers from the old I-195 bridge across the Providence River. It connects downtown Providence with the College Hill and Fox Point neighborhoods. Client:   Rhode Island Department of Transportation Designer:   inFORM Studio Photographer:   Steven Kroodsma Project Features Cast-in-place wingwalls Abutment… View Article

MIT – Various Infrastructure Upgrades

DOC was on call over the course of one year to service MIT campus-wide by improving infrastructure in both emergency and non-emergency situations. Major components of the work done for the institute include the modernization of several sections of steam and water piping. Client:    Massachusetts Institute of Technology Designer:    Vaughn Crayton   Located… View Article

National Grid Cambridge Street Substation Upgrade

National Grid updated an existing yard and installed two new 7.5 kVA transformers. Daniel O’Connell’s Sons was responsible for the site and concrete work as a Civil subcontractor to the construction manager. The project required demolition of the existing foundations and construction of new foundations, with containment systems and related yard structure foundations. DOC made… View Article

National Grid Comerford Station Upgrade

National Grid replaced twelve 230 kV Oil Circuit Breakers in a project updating the facility in Comerford, NH. Daniel O’Connell’s Sons served as the Civil subcontractor to the construction manager and was responsible for the demolition and replacement of foundations for the new units. The project was sequenced over several scheduled outages in order to… View Article

National Grid Monroe Station Upgrade

National Grid converted the Monroe station from high voltage Direct Current conversion yard to an Alternating Current terminal. Daniel O’Connell’s Sons served as the Civil subcontractor to the construction manager and was responsible for a portion of the foundation installation work. Thirty structure foundations and two transformer containment systems were installed as part of an… View Article

National Grid Palmer Station Upgrade

Daniel O’Connell’s Sons was the Civil/Structural contractor for upgrades to National Grid Palmer substation in Palmer, MA. DOC installed new foundations for transformers and a dead end structure. The project also included an updated grounding and drainage system.

Northfield Mount Hermon School – Infrastructure

As part of Northfield Mount Hermon School’s plan to consolidate all operations onto one campus, DOC was retained as design/builder for infrastructure work to support proposed and existing buildings. Client:    Northfield Mount Hermon School Designer:    Berkshire Design Group   New steam and condensate line along the inner loop. Sanitary sewer system replacement. Expansion… View Article

Nstar steel pipe installation

NSTAR Circulating Pipe: North Cambridge MA

Daniel O’Connell’s Sons was hired by NSTAR Electric to install 17,000 linear-feet of 8-inch continuously welded steel pipe throughout the city streets of Cambridge, MA, while maintaining all traffic flow and existing utilities with minimal impact to customers and abutters. DOC was responsible for coordination with the client, city, and numerous agencies in the redesign… View Article

Palmer Dam / Deans Mill Water Treatment Plant

Construction of a new dam structure and related appurtenances at the Deans Mill Reservoir and Water Treatment Plant in Palmer, CT. Client:    Aquarion Water Company Designer:    Tighe & Bond   Reconstruction of the dam structure, spill containment area, water mains, and crest gates. Steel sheet cofferdam cells installed to hold back 88 million… View Article

Plainville Water Pollution Control Facility Phosphorous Removal Upgrade

Upgrades to the existing Plainville Water Pollution Control Facility to meet phosphorus removal regulations. Client:    Town of Plainville, CT Designer:    Tighe & Bond Engineers Size:    2.6 MGD  Project Features New concrete and masonry Filter Building New disc filtration system New Rotary Drum Thickener Relocation of UV disinfection system Plumbing, HVAC, and electrical… View Article

Quabbin Disinfection Facility UV Upgrade

Upgrade of the MWRA’s Brutsch Water Treatment Facility located at the Quabbin Reservoir in Ware, MA to included UV treatment as a second means of primary disinfection. Client:    MWRA Designer:    AECOM Capacity:    7.7 MGD   New UV Chamber addition. Three new Calgon 24-inch Sentinel UV disinfection units and ancillary equipment. New valve… View Article

SFWMD S-333N Canal Gate Structure

Construction of a concrete gate structure built just north of the existing S-333 Structure to provide additional operational flexibility and conveyance of flows to Everglades National Park. Client:    South Florida Water Management District Designer:    Erdman Anthony Size:    1,150 cfs  Project Features New concrete two (2) gate spillway structure Canal excavation Levee construction… View Article

Smithfield WWTP Tertiary Treatment Upgrade

Construction of a new Tertiary Treatment Facility at the Smithfield WWTP in Rhode Island. Client:    Town of Smithfield, RI Designer:    Wright-Pierce Engineers Capacity:    3.5 MGD   New Tertiary Treatment Building. New Ballasted Microsand Flocculation Tertiary Treatment System. Additions to the Administration/Sludge Handling Building ferric chloride feed equipment. New lime silo and feed… View Article

Springfield Pedestrian Railroad Underpass

Construction of a new North End Pedestrian Underpass beneath the Connecticut River Railroad between Plainfield Street and Birnie Avenue in Springfield, MA. Client:    MassDOT Designer:    HDR Architects & Engineers  Project Features Installation of the 52-foot long precast concrete tunnel structure under tracks Concrete retaining walls Paved multi-use path Security provisions include active and… View Article

Storrow Drive Connector Bridge

Construction of a new Storrow Drive/Leverette Connector Bridge, connecting Boston’s Storrow Drive with Interstate-93. Part of the Central Artery project, this bridge is one of the largest single-cell trapezoidal steel box girder bridges in North America. Client:    MassDOT Designer:    HNTB Corporation Size:    830 FT   Three‐span bridge structure with a main span… View Article

Summit Natural Gas (Schmidt Takeover)

DOC completed the installation of 34 10″ fitting replacement of varying bend degrees and angles, in a variety of challenging lane closure and traffic patterns. We also managed and supported five additional HDD sites, ranging between 712 FT to 2085 FT, and one 180 FT jack and bore railroad crossing. The project also included four station… View Article

natural gas regulator station

Summit Natural Gas Regulator Stations

DOC was selected by Summit Natural Gas of Maine to install four natural gas regulator stations. DOC managed construction of these stations from the ground up. Each station is equipped with a water bath heater and over pressure protection devices. The Madison regulator station is capable of providing 860,000 cu ft/hr to consumers. Waterville, Skow-Nor-Tee, and Skowhegan… View Article

UMass Amherst – Infrastructure Improvements

The project was in two separate places on the UMASS Amherst campus and consisted of utility upgrades of steam and condensate piping to service the future central heating plant.  Client:    UMass Building Authority Designer:    R.G. Vanderweil Engineers   New concrete and precast utility tunnels. Duct banks, manholes and vaults. Steam and condensate piping… View Article

Union Station, Springfield, MA

Restoration and renovation of the long-vacant, 1926-built Union Station into a modern transportation facility for the city of Springfield.  Client:    Springfield Redevelopment Authority Designer:    HDR Architects & Engineers Size:    120,250 SF   Complete gut restoration of the 120,250 SF Main Terminal building. 24-bay bus terminal. 377-space precast concrete parking garage (70,000 SF)…. View Article

Upper Blackstone WWTF Phase III Upgrade

Phase III of this comprehensive upgrade included improvements to the solids management facilities at the Upper Blackstone WWTF, which services the greater Worcester area. Client:    Upper Blackstone Valley Pollution Abatement District Designer:    CDM Smith Capacity:    45 MGD   Delivered under a CM-at-Risk approach with preconstruction services. Upgraded dissolved air flotation units. New… View Article

Uxbridge WWTP BNR Upgrades

Demolition, reconstruction, and upgrades to the Uxbridge Wastewater Treatment Facility to meet Biological Nutrient Removal goals. Client:    Town of Uxbridge, MA Designer:    GHD Inc. Size:    2.5 MGD  Project Features Enlargement of the three existing Aeration Basins New Aeration Basin No. 4 New Gravity Thickener No. 2 New Secondary Clarifier New Filtration and… View Article

Wellesley College – Infrastructure Upgrade Project

Daniel O’Connell’s Sons was contracted by Wellesley College to guide them through a series of critical, center-of-campus infrastructure upgrades.  Client:    Wellesley College Designer:    BVH Integrated Services   New steam and condensate piping. Telecommunications and electrical duct banks. Chilled water piping. Storm drainage piping.

West Warwick WWTP Phosphorus Removal Upgrade

Addition of a phosphorous removal system was added to the existing facility to upgrade discharged water quality at the West Warwick, RI WWTP. Client:    Town of West Warwick, RI Designer:    James J. Geremia & Associates Capacity:    5 MGD   New concrete Phosphorus Removal Building. Ballasted phosphorus removal system. New precast concrete diversion… View Article

Weston Covered Storage Tanks

Construction of a 20 million-gallon covered drinking water storage facility to provide higher and more stable water pressures to a large service area in the metropolitan Boston vicinity. This project encompassed a small portion of the rebuilding of the century-old Hultman Aqueduct. Client:    MWRA Designer:    Sverdrup Civil, Inc. Size:    20 Million Gallons… View Article