Supervisors and divers must be thoroughly familiar with the risks associated with swift/fast water diving operations. Train-ups, rehearsals, and unit standard operating procedures should be used when planning and conducting diving operations in currents above 1 knot (1.85 kilometers per hour) (scuba) and 2.5 knots (4.63 kilometers per hour) (SSD). For the purposes of this manual, swift water is defined as sustained current from 1 to 4 knots (1.85 to 7.41 kilometers per hour). Fast water is defined as sustained current in excess of 4 knots (7.41 kilometers per hour). The distinction is important as many of the safety steps for swift water DO NOT translate into safe practices for fast water. Swift/fast water divers must know how to move in the water to lessen the chances of being trapped, or pulled off the project and thrown down stream.
DesignationTM 3-34.84
EditionMar 2015
StatusActive
Pages72
FunctionCBRN
CollectionCurrent Doctrine
Approved for public release; distribution is unlimited.