LAND Remediation, Inc. was contracted to execute the full-scale remediation of the Friedrichsohn Cooperage site in Waterford, NY. The scope included the excavation of impacted sediment from the historic Champlain Canal and deep excavation to bedrock on the adjacent upland site.
Contaminants of concern included both TSCA and Non-TSCA soil and sediment. To maintain canal and stormwater system function during construction, LAND engineered and installed a bypass system to divert incoming storm sewer flow directly into the Mohawk River. A series of sheet pile cofferdams were constructed to isolate the in-canal work zone, allowing safe dewatering and excavation. The canal is currently used for additional storage capacity of water for the Erie Canal system. On the upland site, LAND designed and installed a gravity wall to enable deep excavation to bedrock without groundwater infiltration.
The project encountered several external challenges, including record-setting rainfall during the 2021 summer season and COVID-19 related scheduling impacts. Despite these hurdles, LAND successfully managed over 29,000 tons of contaminated material, restored the site, and rebuilt the former canal towpath used as a critical haul route throughout the project’s duration.
