Waldo Canyon Fire
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Transcript of Waldo Canyon Fire
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2012 Waldo Canyon Fire
EL PASO COUNTY, COLORADO
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Introduction Vancel Fossinger, PE | Wilson & Company• Wildfire and Resulting Hazards • Community Outreach / Community
Support
Tim Mitros, PE | City of Colorado Springs• Challenges• Solutions
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June 23, 2012
• 100 Degrees
• Fire is spotted and grows rapidly
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June 26, 2012
• 101 Degrees
• Pyrocumulus Cloud Builds
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June 26, 2012
• 3:45 pm: Fire jumps containment line
• 4:21 pm: 26,000 people evacuated
• Pyrocumulus cloud collapses
• 65 mph winds
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June 26, 2012• Two deaths• 346 homes destroyed
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Burn Area
18,247 acres burned
Pike’s Peak
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Camp Creek
Camp Creek is the largest watershed on the Waldo Canyon Burn Scar• 10 square mile watershed
• 70 % burned
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Landmarks along Camp Creek
Glen Eyrie Garden of the Gods Park
Rock Ledge Ranch Historic Site 31st St. in Pleasant Valley Neighborhood
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Hazards After the Fire
• Erosion• Sedimentation• Abrasion From Sediment • Increased Threat of Flooding
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Ridge Between Camp Creek and Douglas Creek Watersheds
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Queen’s Canyon/Camp Creek
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Queen’s Canyon/Camp Creek
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Erosion
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Sedimentation
Sedimentation
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Sedimentation
Approximately 15,000 cubic yard deposited in 2013 and to date in 2015
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Abrasion from Sedimentation
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Increased Risk of Flooding
• 100-year Pre-Fire Peak Rate = 1,800 cfs• 100-year Post Fire Peak Rate = 2,900 cfs
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Community Information
Flood Hazard Awareness Meetings“City hosts meeting on Camp Creek flash-flood issues at Glen Eyrie”
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Building Support
Robust Community Involvement Integrated in the development of a Master Plan for Improvements
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Decision Process• Approximately 45 interviews were conducted• 150+ people in attendance• Community concerns, values, and goals were
identified
• Five design concepts for improvements were presented
• Approximately 60 people in attendance• Community likes and dislikes about the concepts were
identified
• Three alternative concepts for improvements were presented
• Approximately 125 people in attendance• Community support for each of the alternatives
identified
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Camp Creek – Challenges and Solutions
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Challenges• Knowing what to do after the fire
• Seek experts• Be creative
• Finding funding • FEMA, NRCS, CDBG, General , Private, Grants• Work collaboratively with elected officials
• Keeping the public informed and prepared• Community meetings• Keeping the media involved
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Challenges• Psychological impacts
• Listen • Provide support and empathy
• Funding requirements• Acknowledging each source has different rules• Understanding the rules
• Maintenance• Generally you are on your own• Be prepared
• Think differently• Sustainability• Resilience is the new goal
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Challenges – Sediment & Debris
Mitigation efforts• Channel widening• Debris nets• Debris basins• Log erosion barriers• Seeding • Mulching
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Glen Eyrie Channel Widening
• Original Channel- 450 cfs
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Glen Eyrie Channel Widening
• New Channel- 2,000 cfs
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The Navigators at Glen Eyrie
• September 5, 2013
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Larger Channel Installed by Navigators
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Larger Channel Installed by Navigators
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Pre-Project Bridge at Glen Eyrie with Insufficient Capacity
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Larger Bridge Installed by Navigators
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Queen’s Canyon Debris Nets
DesignNets
Construction
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Two Debris Nets Installed
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Upper Net
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Maintenance Consideration• Camp Creek in Glen Eyrie before and after July 1, 2013 storm
• City removes debris for 10 years
Lower Net
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Log Erosion Barriers
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Log Erosion Barriers
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Vegetation
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Vegetation
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Camp Creek at Garden of the Gods
• July 16, 2014- New debris basin in Camp Creek
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Camp Creek at Garden of the Gods Temporary Sediment Basin
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Douglas Sediment Basin•Predicted to fill in 10 years- it took 0 minutes
• Predicted to fill in 10 years, instead it took 10 minutes
• July 13, 2014
• May 3, 2015
• July 16, 2014
• May 14, 2015
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Sediment Removed from Basin - $200,000
• July 15, 2015
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Sustainable & Resilient Channel
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Rock Veins & Steep Pools
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Vancel Fossinger, PE | Wilson & CompanyTim Mitros, PE | City of Colorado Springs
Camp Creek Fire – Flood Mitigation
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Questions and Answers
The Fire-Flood Connection