Attleboro MGP

Project Info
  • Location: Attleboro, MA
  • Category: Soil Remediation
Project Details

In 2020 NSI provided shoring for excavation of coal tar waste. During 1880-1900 Manufactured Gas Plants were constructed near cities to provide lighting gas. These plants processed coal to generate methane and produced volumes of coal tar waste. An old MGP site in North Attleboro left thousands of cu yds of coal tar and contaminated soil that needed removal and remediation. NSI was tasked to design and install cofferdams in phases for water control and excavation safety to expedite removals. In phase I & II, 2 L-shaped cofferdams approx. 160’x293’ were installed and braced with tiebacks of 80’ beams to hold river water in check on shallow bedrock.

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