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Hudson River Sediment Remediation

Upper Hudson River - Fort Edward & Troy, NY


2012-2016 Dredging Projects

CLE Engineering, Inc. provided surveying and mapping services in support of the Hudson River Sediment Remediation Project – Phase 2 Operations. CLE has provided multibeam, single-beam and land surveys for the project. Services include existing conditions survey of the remaining design areas, Cap Surveys, Operation, Monitoring and Maintenance (OM&M) areas, Habitat surveys, and shoreline surveys. Approximately 3.3 million tons of dewatered sediment was removed from the Upper Hudson River in a project that the U.S. Environmental Protection Agency has called a success and a national model. At the close of the project, 100 percent of the PCBs targeted by EPA for removal, (approximately 2.9 million cubic yards of sediment from a 40-mile stretch of river between Fort Edward and Troy, N.Y.) have been addressed.

In addition to dredging in the “main stem” of the river, dredging crews removed sediments from a two-mile section of the river that is inaccessible by boat. Client local officials worked together to design a creative approach to perform the work in this area. With two active crews, CLE provided survey services on the Hudson River, working 7 days a week from April through November. CLE worked closely with Parsons Engineering (CM) to develop an approved HASP, Job Safety Analysis (including work along the dam and shallow areas), standard Operating Procedures for survey methods and required weekly deliverables.