water-resources appraisal of the camp swift lignite area, central texas
7.1 Swift Water Rescue Awareness [Read-Only]...• To provide fire service personnel: – Basic...
Transcript of 7.1 Swift Water Rescue Awareness [Read-Only]...• To provide fire service personnel: – Basic...
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Swift Water Rescue Awareness
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Course Objectives• To provide fire service personnel:
– Basic knowledge concerning the characteristics and dangers of moving water
– Specific information regarding the hazards associated with rescues from moving water
– Information regarding basic equipment and skills necessary to accomplish shore based and self rescues from moving water
– Overview of 1st responder support roles for extended SAR ops
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Background• 1980 - Los Angeles
– Man trying to save boy in flood control channel falls in, dies on TV
• Fiancé pushes for LAFD response
• 1992 - Los Angeles– Boy swept down river on TV with no one able to save
him• swift water teams developed and several depts. trained• swift water rescue movement begins
• Roughly 5,000 fatalities annually• Drowning deaths usually occur within 30 to 70
feet of shore and are over in less than 60 seconds. Drowning is the leading cause of death for children ages 1 to 5
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Overview
• There are numerous engineered and natural water-ways including lakes, reservoirs, ponds, rivers, and drainage channels throughout CA. This training program provides basic information for a safe and effective response for awareness level responders.
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Moving Water Hydrology
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Turbulent Whitewater• Up to 60% air = Loss of buoyancy
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Laminar Flow
• Layered flow of the main body of waterMain current moves faster near the surface/middle
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Helical Flow
• Slow moving water along shore circulates with water in main channel
• Pulls people from shore out into main channel
• Can undercut dirt/sand banks that can lead to collapses
FASTEST CURRENT IN THE LAMINAR FLOW
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Strainers
• Anything that allows water to pass through it but not you
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Hydraulic, Hole, Stopper, KeeperWater flowing over a steep drop, creates depression
• Creates a cyclical motion, filling the hole• Even small holes can be difficult to escape• The “recycling” power can hold people or
even boats underwater
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Example of a hole.
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Eddy
• Calm area separated from the main current = slower water
• Characterized by horizontal reversal of water
• Potential resting and rescue areas
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River Terminology
• Upstream• Downstream• River Right • River LeftReferenced when
facing down stream
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Special Hazards• Low Head Dams
– Create a powerful hydraulic across entire width of channel
– People caught in low heads have low survival rates
– Do not put rescuers in the water!
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Note the inner tube is caught against the low head flow from the upstream current.
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Flood Control Channels– Various widths and depths depending on area– Water moves very quickly
• 9 to 45 mph (30 mph average)• Swimming ability not a factor• Victim will be unable to stand
– Most have smooth sides and are relatively steep
• Difficult to escape• Difficult operating area for rescuers
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Flood Control Channels
• Prone to flash floods• Monitor water speed• Very limited area for operations• These are examples of operations used by
appropriately trained personnel– Inflated fire hose from overpass– Tensioned diagonals– Dynamic throw bag rescue– Tethered rescuer
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Flood Control Channels(examples)
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Low Water Crossing
• Pre-Plan areas• Assess vehicle
stability• 1ft. of water depth will
displace 1500lbs from total weight of vehicle
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Low Water Crossing• Very high risk! • Cars can become strainers• Calm victim down• Assess stability of vehicle• Victims on cars will have poor footing
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Operations and Technician Level Rescuer PPE
• Personal Flotation Device required– Within 10’ of water’s edge, per the 7000 Handbook– Coast Guard approved Type III, V, or III/V– Fit very important, should be snug around torso– Provide flotation and protection from impact– Average adult weighs 15 LBS in water– Minimum floatation for PFD is 15.5 LBS
• Whistle (pea-less)• Knives
– Small, straight, strong, blunt end– Attached to PFD w/ handle down
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Operations and Technician Level Rescuer PPE• Head Protection
– Light weight, ventilated, padded, chin strap
• Foot Protection– Light weight and keep feet
warm• Tennis shoes w/ wool or
neoprene socks• Wet suit booties or specialized
water boots
• Hand Protection– Gloves w/ leather palm
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Did we miss anything?
• Additional PPE– Personal throw bag w/ carabiner– 50 ft. – 75 ft.– Wetsuit / Drysuit and hood– Fins – Water Proof Headlamp, Strobe
• Do not wear!!!!!!!!!!– Turnout coat or pants, boots, fire helmet– Heavy equipment belts
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Victim/Rescuer Safe Swim Position
Current
Awareness level personnel will not enter the water.
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Search Organization for Water Rescue• Rescue Acronym
– LAST– Locate the victim– Access the victim– Stabilize the victim– Transport the victim
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Water Rescue ICSIncident
Commander
Operations
Safety PIO
Liaison
Law Enforcement Family
Waterway Flow Control Agency
Search Medical Rescue Air Operations
Upstream Spotter
River Left
River Right
Treatment
Triage
Transport
In Water Team
Back Up Team
Downstream
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California USAR Teams
• 8 throughout state• Each can field Type I
swift water/Flood team– 14 member team, 2 boats– 24 hr. operations
• California OES has multiple swift water rescue teams available for response
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Incident Ordering
• IC• Safety Officer• Upstream Spotter• Downstream Safety x 2• Rescuers
– Suggested initial response minimum of 9• Support personnel needed
– rope systems, logistical support ie. lighting, drinks, shelters, medical team, decon, etc
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Communications
• Use positive communications– Point the direction you want victim/rescuers
to swim• Acquire command and tactical nets• Whistle blasts
– 1 = stop or attention– 2 = upstream– 3 = downstream– 3 long and repeated = emergency
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Communications (cont.)• River hand signals
When in the water
Move this direction
ARE YOU OK?
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ICS for Water Rescues
• Incident Commander– 1st in Company Officer
• Safety Officer– Concentrate on rescuer safety– Keep the “big picture”
• Public Information Officer– Keep media/concerned relatives away from incident
and up-to-date
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Operations Staffed with Operations/Technician Trained Personnel
• Order adequate resources for search teams.– Basic swift water rescue incidents can require
a minimum of 9 trained and equipped personnel
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Reporting Party / Witness Interview– Reporting Party’s Name/Contact Number– Victims Name– Number of Victims– Point Last Seen– Time Last Seen– Description of Victim(s)
• Sex, Age, Clothing, Swimming Ability– Destination of Victim– What events happened to cause the search to
take place– Local friends phone numbers– Vehicle Description
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Establishing Search AreaMeasuring Distance Traveled
• Measure 100ft. along bank• Throw in floating object• Time the object for the 100 ft. distance in
seconds• Divide by 68.2 = MPH
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SECONDS IT TAKES AN OBJECT TO TRAVEL 100’
APPROXIMATE SPEED OF CURRENT IN M. P. H.
5 13.6 10 6.8 15 4.6 17 4 20 3.4 23 3 25 2.7 29 2.4 37 1.8 50 1.4 80 0.9 110 0.6
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Common Mistakes
• Tying a line around a rescuer• Tensioning a line perpendicular to the
water flow• Wearing turnouts within 10 feet of water• Failing to place spotter upstream and
downstream safety• Improvising equipment
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Summary• Establish command• Ensure all personnel within 10 feet of the
water are in appropriate PPE• Communicate situation to ECC• Order appropriate resources• Gather victim/search information
• Do Not Enter the Water!