Job Description:

• 1) Works below surface of water, using scuba gear or in diving suit with air line extending to surface to inspect, repair, remove, and install equipment and structures: Descends into water with aid of DIVER HELPER, and communicates with surface by signal line or telephone.

• 2) Inspects docks and bottoms and propellers of ships.

• 3) Repairs vessels below water line, replacing missing or leaking rivets with bolts.

• 4) Caulks leaks in ships or caissons.

• 5) Guides placement of pilings for structures, such as docks, bridges, cofferdams, and oil drilling platforms.

• 6) Lays, inspects, and repairs underwater pipelines, cables, and sewers, using handtools.

• 7) Cuts and welds steel, using oxyycetylene cutting torch and arc-welding equipment, utilizing air balloon device for working underwater.

• 8) Cleans debris from intake and discharge strainers.

• 9) Removes obstructions from marine railway or launching ways with pneumatic and power handtools.

• 10) Levels rails by driving wedges beneath track with maul or sledgehammer.

• 11) Removes launching cradles and sliding ways from keels of newly launched vessels, using power and handtools.

• 12) Places rigging around sunken objects and hooks rigging to crane lines.

• 13) Rigs explosives for underwater demolitions.

• 14) Searches for lost, missing, or sunken objects, such as bodies, torpedoes, sunken vessels, and equipment.

• 15) Places recording instruments below surface of water preparatory to underwater tests or experiments.

• 16) May set sheet pilings for cofferdams.

• 17) May drill holes in rock for blasting purposes at bottom of lake or harbor and be designated Marine Driller.

• 18) May work in flooded mines.

• 19) May use armored diving equipment for dangerous missions.

• 20) May photograph underwater structures or marine life.

• 21) May place sandbags around pipelines or base of cofferdam to provide structural support.