Underwater Construction Services

At AUS Dredge and Dive, we provide top-tier underwater construction services, specializing in building and repairing structures below the waterline. Our skilled team utilizes advanced equipment and techniques to ensure precision and safety in every project, from bridge repairs to pipeline installations. We are committed to delivering reliable and efficient solutions tailored to meet the unique challenges of underwater construction.

Intake Screens

Intake screens are typically installed at the entrance of water supply systems, such as those for industrial plants, power plants, irrigation systems, or municipal water supplies. Their primary function is to ensure that the water being drawn into the system is clean and free of unwanted debris that could cause damage or reduce efficiency.

At AUS Dredge and Dive, we specialize in a comprehensive range of solutions for servicing your intake screens, including construction, inspection, and maintenance. 

Wet Wells

Wet wells, also known as pump stations, are essential holding tanks used in gravity-flow sewer systems. These tanks collect wastewater before it is pumped to treatment facilities. Solids can often obstruct or damage the pumps, making regular inspection and cleaning crucial for proper operation. At AUS Dredge and Dive, we provide comprehensive inspection and cleaning services to ensure your wet wells remain in optimal condition. Additionally, we offer professional installation services for new projects, ensuring your system starts off with reliable infrastructure.

Trash Racks

Trash racks are essential for preventing larger debris, such as leaves and branches, from entering and clogging intake systems. They are also effective for use in drain inflows and outflows. Due to their critical function, trash racks often require regular cleaning and occasional repairs. At AUS Dredge and Dive, we provide comprehensive maintenance services, ensuring your trash racks operate efficiently. Additionally, we offer installation services for new projects, ensuring your intake systems are protected from the start.

Dock Repair

Docks are frequently exposed to harsh environmental conditions, such as storms and daily wear and tear, which can lead to significant damage over time. At AUS Dredge and Dive, we specialize in the repair and replacement of both stationary and floating docks. Our skilled team is equipped to handle all aspects of dock maintenance, from replacing damaged parts to complete dock reconstruction. Whether your dock has suffered storm damage or simply needs routine maintenance, we provide reliable and efficient services to restore its functionality and safety. Trust us to keep your dock in optimal condition, ensuring its longevity and your peace of mind.

Pipeline Gate and Valve Installation

A gate deliberately obstructs the flow of fluid through a pipeline. Gate valves allow control over the flow of that liquid so that a user can restrict or allow its movement as needed. We are well-prepared to install and maintain the entire system.

Air Diffuser Systems

There are several ways to treat wastewater, and we are experienced in building and maintaining systems designed to do so. In addition to screening or clarification processes, wastewater treatment must prevent the discharge of environmentally hazardous material. Aeration, chlorination, or other chemicals can be instrumental in this treatment, and we have a proven record of installing and repairing these systems.

Burning and Welding

Burning and welding metal underwater are specialized techniques used in underwater construction, repair, and salvage operations. Underwater welding and burning are critical skills that enable complex underwater operations, from routine maintenance to emergency repairs and construction projects in marine environments. Our skilled dive teams are well-prepared for the challenge.

Concrete Sawing and Core Drilling

A concrete saw is a power tool used to cut through concrete. A core drill removes an entire cylinder of concrete. Both processes typically rely on diamond-based saws or drills that require significant cooling. This specialized equipment requires in depth training to operate effectively in aquatic environments, with specific attention to safety, efficiency, and integrity of the underwater structure. Careful planning and execution are necessary to minimize the environmental impact, particularly regarding sediment and debris management. AUS Dredge and Dive takes all this into consideration when approaching any project involving concrete sawing and core drilling. 

Pile encapsulation

Piles are timber, concrete, or steel posts placed in the ground to support foundations. Because they’re often subject to damage and deterioration, encapsulation is one of the best ways to reinforce and protect piles from natural threats like corrosion or animal life. We have extensive experience handling various underwater encapsulation construction and repair projects.

Anchoring of existing pipelines

When pipelines require stabilization, we can install anchors that do the trick. Without anchors, pipelines may push their way to the surface. Anchoring the pipeline controls buoyancy. We can install anchors before or after a pipeline has been laid.