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Dredging PCB-Contaminated Sediment from the St. Lawrence River: Project Overview
A large environmental dredging project was completed on the St. Lawrence River near Massena, New York between April and December 2001. The project entailed the dredging of PCB-contaminated sediments from an area of 12 hectares (30 acres), in water depths up to 8.2 m (27 ft), adjacent to the main shipping channel for the St. Lawrence Seaway. A 1,160 m (3,800 ft) long sheet pile wall was installed to isolate the remediation area from the river. Inside the sheet pile wall, a 366 m (1,200 ft) long silt curtain was erected to isolate the more highly contaminated areas. Air gates were used to allow for barge access into the area enclosed by the silt curtain and reduce the circulation of turbid waters within the enclosure.
Dredging PCB-Contaminated Sediment from the St. Lawrence River: Project Overview
A large environmental dredging project was completed on the St. Lawrence River near Massena, New York between April and December 2001. The project entailed the dredging of PCB-contaminated sediments from an area of 12 hectares (30 acres), in water depths up to 8.2 m (27 ft), adjacent to the main shipping channel for the St. Lawrence Seaway. A 1,160 m (3,800 ft) long sheet pile wall was installed to isolate the remediation area from the river. Inside the sheet pile wall, a 366 m (1,200 ft) long silt curtain was erected to isolate the more highly contaminated areas. Air gates were used to allow for barge access into the area enclosed by the silt curtain and reduce the circulation of turbid waters within the enclosure.
Dredging PCB-Contaminated Sediment from the St. Lawrence River: Project Overview
Esterline, R. C. (author) / Cange, J. B. (author) / Lambert, R. K. (author)
Third Specialty Conference on Dredging and Dredged Material Disposal ; 2002 ; Orlando, Florida, United States
Dredging '02 ; 1-15
2003-10-10
Conference paper
Electronic Resource
English
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