Sediment remediation
Managing complex marine environments with specialized expertise
Sediment remediation and marine construction projects require specialized knowledge, equipment, and construction approaches to address the challenges associated with complex marine environments and environmentally sensitive projects. ENTACT provides integrated marine solutions that support projects involving contaminated sediments, dredging, capping, and marine construction.
Our marine teams combine decades of field experience, advanced technology, and robust self-performance capabilities to help Clients manage projects from early investigation through construction and verification. By understanding site conditions and applying proven construction methods, ENTACT helps reduce risk and improve project outcomes in complex marine environments.
Highlighted Services
Hydrographic surveys
Hydrographic surveying is the process of measuring and mapping underwater environments to determine water depths, seafloor topography, shorelines, and submerged features. The information collected helps project teams understand existing site conditions and provides the foundation for dredging, sediment remediation, capping, and other marine construction activities. …
Marine sediment sampling and characterization support
Marine sediment sampling and characterization are critical first steps in planning dredging, sediment remediation, capping, and other marine construction projects. Collecting and analyzing sediment samples provides valuable information about site conditions, including sediment composition, analytical data, geotechnical properties, and the location and depth of environmental impacts. …
Shoreline and bank stabilization
Shorelines and banks are constantly exposed to erosion from wave action, changing water levels, storms, and flowing water. Over time, these forces can damage infrastructure, destabilize slopes, and impact surrounding habitats. Stabilization measures help protect shorelines, reduce erosion, and improve long-term site performance. …
Sediment processing and disposal solutions
Sediment processing and management is the collection of activities that take place after dredged material is removed from a waterbody. It includes dewatering, material separation, stabilization, transportation, disposal, and beneficial reuse, when appropriate. These processes prepare dredged sediment for safe handling while meeting project requirements and environmental regulations. …
Subaqueous capping & covers
ENTACT is an industry-recognized leader in subaqueous capping and cover system installation, delivering innovative solutions for contaminated sediment remediation projects across North America. With decades of experience and some of the nation’s most innovative large-scale cap installations, we help Clients successfully isolate contaminated sediments while protecting aquatic ecosystems and meeting complex regulatory requirements. …
Integrated marine capabilities
ENTACT supports marine projects involving:
- Contaminated sediment remediation
- Ports and waterways
- Rivers, lakes, and coastal environments
- Industrial waterfront properties
- Infrastructure improvements
- Environmental restoration projects
Our capabilities include:
- Marine sediment sampling and characterization support
- Hydrographic surveying
- Precision mechanical and hydraulic dredging
- Subaqueous capping
- Sediment processing and management
- Marine construction
- Subaqueous in-situ stabilization
- Wetland and marine environment restoration and remediation
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