Rusmar Inc.

Boston Third Harbor Tunnel - Odor and Vector Control


Courtesy of Rusmar Inc.

Products & Equipment Used:

  • Pneumatic Foam Unit 1600/40
  • AC-912 Long Duration Foam

Application Summary:

The joint venture of Bechtel National-Parsons Brinckerhoff required an odor emission suppressant during the dredging phase of the Boston Third Harbor Tunnel Construction Project. A landfill cell had been constructed on Logan Airport property for the dredged marine sediments, and Bechtel-Parsons was concerned that the sediments would present an odor problem as the material dried. Not only would nearby residents and airport personnel consider the odors offensive, but there was additional concern that seagulls would be attracted to the sediments, causing potential interference with the flight path of airplanes during take-off.

The Massachusetts Department of Environmental Protection was familiar with the effectiveness of Rusmar Incorporated Long Duration Foam products from a previous large scale project which required odor control. Rusmar AC-912 was chosen for its ability to form an impermeable membrane that would control odors and emissions for a period up to three months. The subcontractor, MKIW-Third Harbor Tunnel Constructors, applied Rusmar AC-912 Long Duration Foam product over each load of marine sediments that were deposited into the landfill cell. Approximately 100,000 yd3 of material were deposited into the cell over a 5 - 6 month period. There were no odor complaints from nearby residents or airport personnel, and the deposited sediments went undetected by seagulls.

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