Our Services
We are the contractor responsible for the work underwater. Three areas: construction and repair, inspection and engineering support, and commercial diving with full crew and supervisor on site.
Construction, Maintenance and Repair
Crews with years of work behind them and hydraulic, pneumatic and thermal tools. Licensed general and marine contractor in five U.S. states with general and marine liability insurance in force.
Inspection and Engineering Support
We go down, measure and document the real condition of the structure. The report comes back with photos, video, thicknesses and drawings the client's engineer can use to decide.
We provide engineering support, not structural design. We work with the client's consulting firm or engineer.
Specialized Commercial Diving
Every job has a qualified supervisor on site. ADCI certified divers. One safe practices manual, no regional version.
- • Dams and powerhouses with differential pressure (ΔP) hazards.
- • Permit confined space entry.
- • Direct underwater support to general contractors on port and pier work.
- • Swoffer flow measurement and/or ROV inspection before the dive when the differential pressure risk is unknown.
Ten years on hydro dams, water plants, ports and bridges in the United States. Our clients are federal and investor owned power utilities, the Army Corps of Engineers, municipalities and general contractors. Gates, trash racks, intakes, spillways and piles, under differential pressure and in confined spaces. The same supervisors who ran those jobs run the ones in Central America. References and project list on request.
Structures and facilities we work on
If it's underwater and needs to be inspected, cleaned or repaired, it's our job.
Work few others do
Potable water and wastewater
Diving in potable water tanks, treatment plants, wet wells and collectors without draining or taking the facility offline. Dedicated equipment for potable water and sealed equipment for contaminated water.
- • Inspection and cleaning of potable water tanks and reservoirs
- • Wet wells, sumps and pumping stations
- • Clarifiers, digesters and aeration tanks
- • Repair of valves, screens and submerged pumps
Confined spaces and difficult access
Penetration diving in pipelines, siphons, tunnels and conduits with no direct surface egress. Entry permit, lifeline and supervisor on every entry. Crew trained in confined space entry and rescue.
- • Intake and discharge pipelines
- • Siphons and conveyance tunnels
- • Flooded galleries and valve chambers
- • Inspection and removal of obstructions
Gates, intakes and flow control
Gate repair, seal replacement, screen cleaning, debris removal and stop log placement at dams, intakes and canals, with differential pressure control on every operation.
- • Seal and gate guide replacement
- • Trash rack cleaning and repair
- • Removal of logs, trash and debris at intakes and spillways
- • Placement and removal of stop logs
- • Differential pressure verification before every dive
Dredging and sediment removal
Diver-directed hydraulic dredging at intakes, forebays, pump wells and piers. We restore capacity without taking the facility offline.
- • Water intakes and dam forebays
- • Pump wells and sumps
- • Berths and piers
- • Removal of debris, logs and obstructions at dams and intakes
Check the scope of your job
Before we move a truck, we check flow, depth and site hazards.
Technical reply in under 24 business hours.