On Track Magazine, Winter 2016
Sargent Corporation has substantially completed a $4.3 million project to rebuild all or parts of eight streets and install new storm drain, sewer, and water lines in a residential neighborhood in West Lebanon, NH.
The project, called “Combined Sewer Separation Contract No. 10,” was part of a long-term plan by the City of Lebanon to separate the municipal stormwater and sewer systems.
Nine contracts have been completed before this one; at least one more contract (Combined Sewer Separation Contract No. 11) is on the drawing board.
The project involved a curb-to-curb rebuild of the streets, including storm drains, sewer lines and services, water lines and services, new road subbase and base gravel, new paving, new granite curbing, and new sidewalks.
The streets included in the project were Prospect St. West, Pearl St., Winter St. West, Green St. West, and parts of Dana St., Timothy St., Highland Ave., and North Main St.
New water and sewer services were provided to about 70 homes in the neighborhood.
Sean Milligan was the project superintendent; the foremen were Jim Lagasse, Chris Lee, Bob Mann, Alex Hardy, and Paul Gervais, Jr.
Colby Currier, operations manager for Sargent, said Sean and the foremen did an outstanding job communicating with people in the neighborhood and coordinating with residents to make sure that they could get to work in the morning and get home at night while construction was taking place on their streets.
“The residents were extremely accommodating,” Colby said. “Sean did a very good job of communicating—putting out notices and flyers and talking to people—so there were no surprises for the residents.”
The crew developed a very good relationship with the people in the area.
“As much of an inconvenience that the project was to the residents, they appreciated all of the coordination that we did with them—and they knew that in the end they’d have a nice product,” said Colby. “The city told us they had never had so many compliments about a crew.”
One group of residents even held a block party for the crew.
The project required 3,100 linear feet of storm drain, 4” to 30”; 3,300 linear feet of underdrain, 4” to 36”; 4,400 linear feet of water line, 8” and 12”; 2,100 linear feet of 1” water line services; 4,200 linear feet of sewer line, 8” to 12”; and 1,900 linear feet of sewer services. It also included 70 drainage structures and 16 sewer manholes.
Work on the project started in late May and was substantially complete on November 27. In 2016, the crew will return to complete the surface paving, loaming, and seeding. The Pearl St. portion of the project was paved with porous pavement—a type of pavement that allows the water to flow through it instead of running off the roadway into the storm drain.
“The water goes through the pavement and then through layers of stone and sand before in reaches the storm drain,” said Colby. “The result is cleaner water to the storm drain, as opposed to stormwater that has picked up oil, dirt, and other contaminants from the street.”
Subcontractors on the project were Tri-State Curb, Weare, NH; R&D Paving, Franklin, NH; Moulison North, Biddeford, ME, electrical work; Blaktop Inc., West Lebanon, NH, paving; Trans-America Hydro-Seeding, St. Johnsbury, VT; Anything Grows, Richmond, VT, landscaping; Superior Fence, Belmont, NH; and CWS Fence & Guardrail, Andover, NH.
Colby said the crew worked closely with the City of Lebanon, including Christina Hall, City Engineer; Erica Brittner, Assistant City Engineer; and Wayne Leonard, Clive Tweed, and Bruce Temple of the Lebanon Public Works Department.
The design engineer was Wright-Pierce of Topsham. The designers were Lyndsay Butler and Ryan Wingard, the project administrator was Leo Soucek, and the resident project representatives were Shannon Larocque and Ben Bean.
Brian Hilliard represented the New Hampshire Department of Environmental Services on the project.
Ian McCarthy was the project manager for Sargent. Pat Dubay was the estimator.