SHEET PILES & COFFERDAMS FOR EAST COAST CONSTRUCTION
Coastal Marine Construction installs sheet piles and cofferdams to create dry, stable work areas for construction below the waterline.
This gives project teams safe access to build, repair, or inspect structures that would otherwise be underwater.
THE FULL SCOPE.
SELF-PERFORMED.
Coastal Marine Construction installs sheet piles and cofferdams to create dry, stable work areas for construction below the waterline. This gives project teams safe access to build, repair, or inspect structures that would otherwise be underwater.
PLANNED
AROUND THE WATER.
Working below the waterline adds complexity to almost any marine project, and the right sheet pile or cofferdam approach depends on water depth, soil conditions, and how long the work area needs to stay dry. Coastal Marine Construction evaluates each site’s specific conditions and offers multiple approaches for working below the waterline, rather than defaulting to a single method regardless of fit. Because we self-perform the surrounding scope, from pile driving to dewatering to the structural work happening inside the cofferdam, the sequencing stays coordinated under one crew.
Our process starts with reviewing the site’s geotechnical and hydrological conditions to determine the right sheet pile or cofferdam system. Installation follows engineering specifications, with attention to environmental protections like silt curtains where sedimentation or turbidity is a concern. Once the work area is secured and dewatered, our team moves directly into the next phase of construction without waiting on a separate subcontractor to mobilize. We stay in close contact with project engineers throughout, adjusting the approach if subsurface conditions differ from what was anticipated.
CLIENT TESTIMONIALS
FREQUENTLY ASKED QUESTIONS
What is a cofferdam used for?
A cofferdam is a temporary structure that holds back water, creating a dry work area for construction, repair, or inspection below the waterline.
What is the difference between sheet piles and a cofferdam?
Sheet piles are interlocking structural panels driven into the ground to retain soil or water, and they’re often used as a component of a cofferdam system. A cofferdam is the broader temporary structure, which may use sheet piles, cellular construction, or other methods depending on site conditions.
How does Coastal Marine Construction choose which method to use?
Coastal Marine Construction evaluates water depth, soil conditions, and project duration to determine the right sheet pile or cofferdam approach for each site, rather than applying a single standard method.
Are cofferdams safe for environmentally sensitive sites?
Yes, when installed with proper environmental controls. Coastal Marine Construction uses tools like silt curtains to limit sedimentation and turbidity impacts during installation and construction.
How long does a cofferdam stay in place?
The duration depends on the scope of work happening inside it, ranging from a few weeks for repairs to the full length of a larger construction project.
What kind of projects require sheet piles or cofferdams?
Bridge repair, seawall construction, pier and wharf foundations, and any project requiring dry access below the waterline typically require sheet piles, a cofferdam, or both.
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