McCarthy Concrete is backed by 5 decades of expertise

Marine Construction

Seamless Marine Construction Solutions

McCarthy Concrete has the resources and an experienced team to handle your marine construction. Our crews have seasoned divers, working platforms, rescue boats and access to all the equipment needed to meet your marine construction needs.

From constructing new installations to restoring existing commercial structures, our comprehensive capabilities encompass a range of concrete applications, including preplaced aggregate, cast-in-place, and precast concrete. Moreover, our proficiency extends to the repair of steel structures, facilitated by specialized underwater equipment such as saws, torches, and welders.

Mastering Marine Concrete: Building Resilient Structures in Harsh Environments

The significance of our work lies in the durability and resilience of marine structures. Withstanding environmental pressures and corrosive elements demands expertise and precision, qualities that define McCarthy Concrete’s approach to every project.

McCarthy Concrete employs a range of shore protection methods to mitigate the adverse effects of erosion, sea-level rise, and other coastal challenges—ensuring the longevity of coastal infrastructures and habitats. These methods, tailored to specific site needs and environmental conditions, play a crucial role in safeguarding our coastlines against the relentless forces of nature.

Strengthening Seaside Structures

Bulkheads and Seawalls

Bulkheads and seawalls serve a primary function—to protect coastlines, properties, and infrastructure from the erosive force of waves and tidal actions. While both are used interchangeably, there’s a subtle difference—seawalls generally guard against waves, while bulkheads retain the soil from eroding away.


Groins are structures built perpendicular to the shore, designed to interrupt water flow and trap sand. By doing so, they can prevent beach erosion and even help in beach widening.


Jetties are structures designed to maintain or deepen navigational channels, often constructed at the entrances to harbors or river mouths. They work by preventing the accumulation of sediment, ensuring smooth passage for ships and boats.


Breakwaters are offshore structures built to break the force of incoming waves, providing calm waters behind them. They can be floating or fixed and are often used to protect harbors, anchorages, and marinas.

Silt Curtains

Silt curtains, often known as turbidity curtains or sediment barriers, are intended to prevent sediment and silt from migrating into water bodies during marine construction or dredging activities. By doing so—they protect aquatic habitats, ensure clarity of water, and comply with environmental regulations.

Tidal Barriers

Often referred to as storm surge barriers or sea gates, tidal barriers are specifically designed to prevent sea-based threats—such as tidal surges or high waves—from entering estuaries or river mouths—thus protecting inland areas. These barriers serve as temporary sea walls, only rising or closing during potential flooding events, ensuring minimal disruption to the natural tidal flow and marine navigation during normal conditions.

Setting the Standard in Excellence

McCarthy Concrete stands as a beacon of excellence in the realm of marine construction, boasting 45 years of invaluable experience and a dedicated team of experts. Our commitment to providing seamless solutions for marine projects is unwavering, supported by certified, seasoned divers, cutting-edge equipment, and a comprehensive range of concrete applications.

Exploring The Depths of Marine Construction

Dive into the depths of marine construction with McCarthy Concrete—where every project is a testament to innovation and durability. Our commitment to innovation means focusing on the unique challenges of marine construction, where every wave and current presents an opportunity to push the boundaries of what’s possible. With each project, we blend cutting-edge techniques with time-tested craftsmanship to create structures that not only endure but excel in the harshest marine environments.

Your Trustworthy Marine Construction CT Partner

We understand the critical importance of durability and resilience in marine structures, considering the harsh environmental conditions they face. From combating corrosion to addressing salt-induced deterioration. With a steadfast focus on expertise, precision, and innovation, McCarthy Concrete remains at the forefront of mastering marine concrete, building resilient structures that withstand the test of time in even the harshest environments.