Date post: | 14-Apr-2017 |
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Education |
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COURSE OBJECTIVES
To provide First Responders withBasic knowledge concerning the characteristics & dangers of moving waterSpecific information regarding the hazards associated with rescues from moving waterInformation regarding basic equipment & skills necessary to accomplish shore based & self rescue from moving waterOverview of First Responder support roles or extended Search & Rescue Operations
COURSE GOALS
Basic Knowledge TerminologyTheory/Duties of First ResponderSafetyDispatch
BACKGROUND
Roughly 5,000 deaths annuallyDrowning deaths usually occur within 30 to 70
feet from shore & are over in less than 1 minute
Drowning is the leading cause of death for children 1 to 5 years of age1/3 of drowning's are would be rescuers
PRE-INCIDENT PLANNING
FamiliarityTypes of waterwaysHazardsPhysical featuresPre-determined rescue sitesAnchor points
SWIFT WATER
Can be found inRiversCreeksWashesFlood control
channels
PREVIEW OF
SWIFTWATER RESCUEAWARENESS
POWERPOINT TRAINING PRESENTATION
STILL WATER
Can be found in LakesPondsRetention Basins
SWIFT WATER CHARACTERISTICS
PowerfulRelentlessPredictable
POWERFUL
Water weighs 62 Lbs per cubic foot8 Lbs per gallonMass obeys the laws of physicsMoving water has tremendous energy
PHYSICS
FORCE=Mass X Velocity2
Velocity PoundsOn Legs
Pounds On Body
5 ft/S=3.4 MPH 16.8 33.610 ft/S=6.8 MPH 67.2 13420 ft/S=13.6 MPH
269 538
TURBULENT WHITEWATER
Up to 60% of air=loss of buoyancy
WATER FLOW VOLUME
Depth X Width X Velocity 10 X 50 X 5 ft/Sec = 2500 Cu/Ft/Sec
10 ft
50 ft
VELOCITY INCREASES PASTOBSTICLE & NEAR LINE
Eddy line
Still or slow water
Slow water
Fast water
HELICAL FLOW
Slow moving water along shore circulates with water in main channel
Pulls people from shore out to main channelCan undercut dirt or sand banks that can lead to
collapse
STRAINERS
Avoid the strainer or climb over it, or you may drown if you become entangled
HOLE
MOVING WATER
CURRENT VELOCITY (MPH)
LEGS(lbs)
BODY(lbs)
SWAMPED BOST(lbs)
3 16.8 33.6 168
6 67.2 134 672
9 151 302 1512
12 269 538 2688
LOW HEAD DAM
FACE
BACKWASH
BOIL LINE
OUTWASH
LOW WATER CROSSING
Pre-plan areasAssess vehicle stability1ft of water depth will
displace 1500 lbs. from total weight of vehicle
REACH
Extend object to victim from shorePaddleLadderPike poleInflated hose
VICTIM RESCUE
Reach or throw onlyDo not attach rope to yourselfUse throw bag
Do not forget the speed of the waterDeploy downstream diagonal linesPendulum victim to shoreTreat for hypothermia
ROW
Photo by KOMU news
FIRST RESPONDER SAFETY
Use PFD and throw bag if within 10’ of waterDeploy upstream spotters (debris & surge)Deploy multiple downstream recovery pointsDo NOT wear structural firefighter turnout gear
or helmet
WEAR APPROPIATE PPE
Water Rescue vs. FF Turnout Gear
DRY SUIT
Photo by Public Affairs Office Fort Wainwright
FOOT PROTECTION
Light weight & keep feet warm
Tennis shoes with wool or neoprene socks
Wet suit booties or specialized water boots
Photo by Lisa Risager
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