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Underwater Construction Teams (UCT) are the United States NavySeabees' underwater construction units numbered 1 and 2 that were created in 1974. A team is composed of divers qualified in bothunderwater construction andunderwater demolition. Possible tasks can be: battle damage repairs, structural inspections and assessments, demolition ofwaterline facilities or submerged obstructions, installation of submergedsurveillance systems, or harbor and channel clearance. As needed, teams may test and or evaluate new or existing aquatic systems or equipment. Extending construction, whether vertical or horizontal, beyond theshoreline andwaterline is their specialty.[1] Reflecting Seabee tradition, teams are expected to execute underwater construction anywhere, anytime, under any conditions.
Almost as soon as Naval Construction Battalions were created submerged construction tasks were being brought to the Seabees. In 1942 a second class divers school was created atCamp Peary and Seabees have fielded divers ever since.Naval Combat Demolition Units selected Seabee divers to support specialized U.S. Marines and Army units. WWII battalions typically had a complement of 4 qualified divers. In the field, CBs would tap other battalions for additional divers to get the job done as needed.[2] It was common for battalions to not have organic diving gear. Divers were taught in diving school how to fabricate a breathing apparatus from Navy MK-III gas masks for surface support. Most of the work was in less than 60' of water, but the WWII cruisebooks indicate men pushed the limits of what they could do with what they had.[3] Divers in the 301st CB placed as much as 50 tons of explosives a day to keep theirdredges productive.[4] However, the divers of CB 96 used 1,727,250 lbs of dynamite to blast 423,300 cubic yards ofcoral for the ship repair facility onManicani Island, as an element of the Naval Operating Base Leyte-Samar.[5] Their primary diving gear was modified Navy Mk III and Navy Mk IV gas masks.[5]
During theVietnam War atChu Lai in 1967 MCB 71 had an Under Water Construction Team search theTra Bong River for a missing Squad of Marines. Their efforts made publication inStars and Stripes. In 1974, severalUnderwater Demolition Team divers, primarily from UDT-13, helped establish the first independent UCT teams 1 and 2.[6]
UCT divers are attached to five principal commands outside the NCF:
The UCTs have a Shore Duty component and a Sea Duty component. Sea Duty personnel are divided into three Air Detachments that deploy worldwide in support of both peacetime or combat missions as needed. The Shore Duty component contains all of the staff and support functions such as Administration, Supply, Logistics, Table of Allowance Maintenance, and Training.[citation needed]
UCT training is 26 weeks at Dive school in Panama City, Florida. There is a tactical training phase for advanced expeditionary combat skills and demolitions.[9]
After Basic Underwater Construction Technician training a diver is qualified as a (2nd Class Diver). UCTs are members of the Naval Special Operations (NSO) community.[10]
With their skills sets UCTs can deploy to support aNaval Special Warfare Command, either withSEAL teams,Special Boat Teams,Navy EOD Teams, or other dive elements. They also can apply for selection to supportNaval Special Warfare Development Group.[11]
Diver : is a qualification that the various rates can obtain with three grades: Basic Underwater Construction Technician/ NEC 5932 (2nd Class Diver), Advanced Underwater Construction Technician/ NEC 5931 (1st Class Diver), and Master Underwater Construction Technician/ NEC 5933 (Master diver).[9]
