unit 7 - securing the control line
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Unit 7 - Securing the Control Line. Objectives. Understand methods of holding and securing the control line to prevent slop-overs Demonstrate methods of mopping up after the control line is secure Explain about recognizing and protecting the point of origin. Holding the Control Line. - PowerPoint PPT PresentationTRANSCRIPT
Unit 7 - Securing the Control Line
Objectives
• Understand methods of holding and securing the control line to prevent slop-overs
• Demonstrate methods of mopping up after the control line is secure
• Explain about recognizing and protecting the point of origin
Holding the Control Line
• Heavy or overhanging fuels
• Hillsides• Hot spots• Spot fires
Trenching
• This is digging a shallow trench with the berm on the downhill side
• Any rolling material goes into the trench instead of all the way to the bottom of the hill
Hotspotting
• Areas of the line where fire is still active
• Wind, radiant heat, spots, or falling material can jump the line
Fireproofing
• This is protecting risk fuels on the green side of the line
• Foam gels, or retardant
• Removing fuel
Dozer Piles
• You may need to break up piles that may have burning material inside
• Don’t climb on top of piles
Mopping up
• This is putting out all remaining areas of fire and/or hotspots after the line around the fire is complete
Systematic method of mop-up
LCES
Wind at 5 mph
Wet or Dry?
Pattern
N
Mop-up
• Mop-up is killing all remaining hotspots or smoldering areas
• Especially important to check areas near the control line
• On large incidents, the fire may be gridded out into sections
Mop-up Tips
• If no hotspots are found, wait a few minutes and look for smoke
• Look & listen for areas or spots
• Feel for heat
Mopping up with Water
• Mix up some mud and stir in smoldering materials if water is short
• If you have plenty of water, use straight streams to get into deep seated material
Surface & Ground Mop-up
• You may have to turn duff over several times to get all of the hot material exposed and out
• Tree roots may be smoldering under the surface
Snags• Burned trees with;
– Fire above ground– Burned up branches– Leaning/unstable– Smoldering/burned
roots
• This is sawyer work; don’t attempt dropping this on your own
• SNAGS WILL KILL YOU!
Protecting the Point of Origin• The area where the fire started is likely
to be the area of the most heat damage. • On most wildland fires, look for areas of
hot white ash, this is usually your point of origin
• Also look and compare burn damage in different areas
• Protect the POO from damage from vehicles and foot traffic
• Don’t let anyone tamper with the site
Protecting the Point of Origin
• Good clues include damage to foilage that doesn’t normally burn well
Other clues that might help
• Always be on the lookout for suspicious people nearby the fire area
• Look around for any witnesses
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