Subsea Human Habitat Deployed for Ocean Research & Engineering

Ocean infrastructure company DEEP has successfully deployed its Vanguard pilot subsea human habitat 17 meters below the surface at Tennessee Reef within the Florida Keys National Marine Sanctuary.

The deployment represents the first open-ocean subsea human habitat built, tested, and deployed in the United States in 40 years, marking a major milestone for subsea engineering, ocean research, and conservation. The complex marine operation involved setting an ocean floor foundation in place, fixing the habitat onto the foundation, and securely tethering a surface support buoy nearby. The complete system now sits on a sandy bottom at an ocean depth of 17 meters (56 feet).

The liveable portion of the habitat measures 10.7 meters long by 2.5 meters wide and is engineered to support crews of up to four aquanauts living and working underwater on research missions lasting five or more days. Sea acceptance testing and commissioning are currently underway as the final steps toward classification by DNV, a global leader in maritime classification that has provided independent technical assurance throughout the design and build processes. Following commissioning, DEEP will focus on habitat support crew training ahead of the first official missions.

Norman Smith, Chief Technology Officer at DEEP, said, “Installing Vanguard at Tennessee Reef was a carefully choreographed marine operation with a lot of moving parts, and the culmination of 18 months of intense design, build, and testing efforts. Today is a huge milestone and an experience I’ll never forget. Successful deployment gets us closer to enabling a continuous human presence in the ocean and is a major step forward in DEEP’s mission to make humans aquatic. From Vanguard we can expand meaningful access to the underwater environment and unlock new possibilities in marine science, environmental monitoring, human performance and extreme environment training.”

The Tennessee Reef deployment site is a critical area of scientific interest where a continuous human presence will allow scientists to live and work at depth for days at a time. This expanded access is designed to accelerate the understanding of coral health, ecosystem dynamics, and climate change impacts. Initial activities scheduled for the platform include coral reef restoration operations, continuous reef condition monitoring, baseline climate impact studies, species surveys, human physiology research, ocean sensor testing, and astronaut training. The habitat will also host live education and public outreach to broadcast real-time communications from the seafloor to global audiences.

Eddie Kertis, superintendent of Florida Keys National Marine Sanctuary, commented, “For decades, NOAA has supported using subsea habitats as a platform to reveal ground-breaking discoveries that inform the sanctuary’s management well into the future.
The deployment of a new subsea habitat within the sanctuary creates additional opportunities for marine science and builds on research infrastructure, resource stewardship, and our long-standing collaboration with the scientific community.”

This deployment marks the beginning of a larger, long-term ocean infrastructure program by DEEP aimed at securing a sustained human presence beneath the waves. The real-world experience gained from the Vanguard pilot habitat will directly inform the development of Sentinel, a larger, modular habitat system. DEEP executed the Vanguard project alongside partners Unique Group, Bastion Technologies, Triton Submarines, and Resolve Marine.