Business Details
35 Years
experience
Expert Marine Construction & Dredging Services in Charleston, SC
Founded in 1991 by F. Hammond Johnson, Marinex Construction has been a leader in marine construction, specializing in channel and fill dredging, river and harbor improvements, and shoreline protection. Headquartered in Charleston, South Carolina, we serve coastal communities from Norfolk, Virginia to Tampa, Florida, combining over 30 years of industry experience with cutting-edge technology like 3D modeling to deliver innovative solutions. Our team of more than 100 professionals, many with decades of expertise, prioritizes safety, quality craftsmanship, and environmental stewardship.With state-of-the-art equipment and a commitment to progressive ideas, we execute projects of all sizes, focusing on sustainable practices that benefit both local economies and ecosystems. Our mission is to provide clients with reliable, high-quality services that address evolving challenges in coastal infrastructure.
Services
Channel Dredging
Harbor Improvements
Shoreline Protection
Beach Nourishment
Environmental Restoration
Containment Management
Details
- Year established: 1991
Highlights and features
- We offer 30+ years of specialized marine construction expertise.
- Our team includes professionals with decades of dredging industry experience.
- We utilize advanced 3D modeling technology for precision projects.
- We prioritize environmental restoration alongside infrastructure development.
- We maintain a diverse fleet of state-of-the-art dredging equipment.
Services
Channel Dredging
Channel dredging maintains safe water depths for commercial and recreational vessels. We use advanced cutter suction dredges to remove sediment buildup, ensuring navigational safety and preventing flooding. Our precision techniques minimize environmental impact while supporting port efficiency and economic growth.
Shoreline Protection
Shoreline protection prevents erosion and storm damage through engineered solutions like seawalls and dune restoration. We combine structural reinforcements with natural habitat preservation to create resilient coastlines that safeguard communities and ecosystems from rising sea levels and extreme weather events.
Beach Nourishment
Beach nourishment replenishes eroded shorelines by adding sand to maintain recreational spaces and natural buffers. Our projects restore coastal aesthetics, protect infrastructure, and enhance habitats while adhering to strict environmental regulations for sustainable tourism and ecosystem health.
Environmental Restoration
Environmental restoration rehabilitates habitats impacted by human activity or natural disasters. We collaborate with local governments to create wetlands, manage containment areas, and reintroduce native species, promoting biodiversity and long-term ecological balance alongside infrastructure development.
Harbor Improvements
Harbor improvements enhance port efficiency and safety through dredging and infrastructure upgrades. We deepen channels to accommodate larger vessels, install modern docking systems, and implement erosion controls, ensuring ports remain competitive and capable of handling increased cargo volumes sustainably.
People
F. Hammond Johnson
President
Founder of Marinex Construction since 1991, F. Hammond Johnson has over 50 years of dredging industry experience. Leading with a pioneering philosophy, he drives innovation in marine construction while maintaining a commitment to safety and environmental stewardship.
Questions
What services does Marinex Construction offer?
We specialize in channel dredging, harbor improvements, shoreline protection, beach nourishment, environmental restoration, and containment area management for coastal communities.
Which areas do you serve?
We operate throughout the Southeast United States, from Norfolk, Virginia to Tampa, Florida.
How long has Marinex Construction been in business?
Founded in 1991, we have over 30 years of experience in marine construction and dredging.
What equipment do you use?
We utilize state-of-the-art dredging equipment, including cutter suction dredges like the Hampton Roads and Savannah Dredge systems.
Do you focus on environmental sustainability?
Yes, we integrate environmental restoration with infrastructure projects to ensure ecological balance and long-term community resilience.
