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Marine Construction of underwater reef

Marine Construction services

Cross Marine Personnel replacing intake screens on dam for maintenance

Underwater DAm Construction & Maintenance

Our underwater dam construction and maintenance services support the long-term safety, performance, and service life of dams and water-control structures. We perform submerged inspections, concrete repairs, scour protection, foundation stabilization, and debris removal using commercial divers and specialized marine equipment. Our team works directly on spillways, intake structures, outlet works, and submerged dam faces where conventional construction methods cannot reach. All underwater dam work is completed with minimal disruption to operations while accounting for turbidity, flow conditions, and environmental constraints. From preventative maintenance to targeted underwater repairs, we help dam owners, municipalities, and agencies protect critical infrastructure and maintain regulatory compliance.

underwater pipeline construction 

We provide underwater pipeline construction services for water transmission lines, intakes, outfalls, and marine utility infrastructure. Our capabilities include pipeline placement, alignment, anchoring, inspection, and underwater connections in lakes, reservoirs, rivers, and industrial facilities. Using commercial divers, lifting systems, and precision positioning techniques, we install and stabilize submerged pipelines while minimizing sediment disturbance. Our underwater pipeline construction work supports potable water systems, wastewater infrastructure, industrial intakes, and environmental projects. Each project is executed with careful planning, accurate positioning, and strict adherence to safety and project specifications.

Barge installing underwater pipeline in Great Salt Lake
Barge with excavator used for dredging and installation of rock around dam

marine Construction dredging

Our marine construction dredging services remove sediment and accumulated material from underwater structures, pipelines, intakes, and confined work areas. We specialize in precision dredging around critical infrastructure where traditional large-scale dredging equipment is impractical or too disruptive. Using diver-assisted dredging, hydraulic pumps, and controlled excavation methods, we restore design elevations while protecting surrounding structures. Marine dredging improves flow efficiency, access, and structural integrity for dams, pipelines, marinas, and industrial water systems. All dredging operations are performed with attention to environmental conditions, sediment control, and project-specific requirements.

Why Choose Our Marine Construction Team

With experience across dams, pipelines, and submerged infrastructure, our marine construction team delivers safe, efficient, and technically sound underwater solutions. We combine commercial diving expertise with marine construction equipment to complete complex projects that require precision below the waterline. Our approach emphasizes safety, clear documentation, and reliable execution for public agencies, utilities, and industrial clients.

© 2025 Cross Marine Projects. All images and content are proprietary.

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