23
Tippecanoe County Multi-Hazard Mitigation Plan (MHMP) Area Plan Commission Meeting September 20, 2006 Tippecanoe County Office Building
Tippecanoe County Multi-Hazard Mitigation Plan
(MHMP)Area Plan Commission Meeting
September 20, 2006
Tippecanoe County Office Building
Why Create a Multi- Hazard Plan?
Disaster Mitigation Act of 2000 Plan for a disaster before it occurs in order to
reduce the physical, social and economic impact of a disaster.
Requires all NFIP communities to prepare a MHMP to be eligible for any future mitigation funding.
Every dollar spent on mitigation saves a community four dollars in damage (on average).
Stage 1: Laying the Groundwork
Create the Planning Committee 30 members with varied backgrounds
Identify NFIP Communities 5 out of 7 communities participate locally
Identify and Map Critical/Essential Facilities Select Hazards for In-depth Review
Identification of Critical Facilities
What is a critical or essential facility? Where are they?
Tippecanoe County: 76 Lafayette: 113 West Lafayette: 26 Battle Ground: 6 Clarks Hill: 4 Dayton: 3 Shadeland: 5
Hazards Selected
Hazardous Materials Floods Tornado/Wind Storms Severe Winter Storms Earthquakes Dam Failures Utility Failures – Not resulting from another
hazard
Hazardous Materials …transportation, storage, industrial /
household… Facts:
2000-2003 : 111 responses At least 68 Hazardous Sites 197 leaking underground
storage tanks Concerns:
Accidents/Contamination Disruption to freight industry Long term evacuation
Floods …riverine, flash and urban floods…
Facts: 10 significant events
since 1994 Damages for Indiana
exceed $67 billion. Concerns:
Property Damage Secondary events Buyout money Loss of life
Tornado / Windstorms …violent rotating columns of air and
straight line winds… Facts:
1994 (3 deaths /70 injuries, $5M), 1999 (1 injury & $300,000), 2004 ($1M), 2005 ($10K), 2006 (3 events = $80K total)
35 tornados & 108 wind events/ thunderstorms since 1959
Concerns: Unpredictable nature Damage to property and lives Safe rooms & tie downs
Severe Winter Storms …heavy snowfall, high winds, ice,
freezing rain and cold temperatures…
Facts: 17 events since 1994 $300,000 in damage from
one storm in 2005 Concerns:
Stranded residents & motorists
Lack of food and supplies Disruption to freight industry Secondary events
Earthquakes …sudden, rapid shaking caused by shifting
and breaking rock below the surface…
Facts: 1811-1812 Regional
earthquakes 1968 & 1987, no damage HAZUS
Concerns: New Madrid Fault Significant event potential
Dam Failures …overtopping, foundation and structural
failure… Facts:
Dams store, control, divert water and create power
5 local dams, 2 in surrounding counties
No historical records Could cause an estimated $80B in
damages Concerns:
At risk river communities Advance warning plans
Utility Failures …outages not triggered by another event…
Facts: Only minor local outages A 2003 outage in the Eastern US
resulted in $6B in damages; 40M persons affected
A 1965 northeast blackout caused $25M in damage, duration was 12 hours
Concerns: Lack heating & cooling Long term failure Alternative communication
needs
Stage 2: Evaluating Hazards
Calculated Priority Risk Index Weighted formula used to compare hazards.
Probability (unlikely – highly likely) Magnitude/Severity (negligible – catastrophic) Warning Time ( more than 24 hours – less than 6
hours) Duration (less than 6 hours – more than 1 week)
SCORED:
ProbabilityUnlikelyPossibleLikelyHighly likely
Magnitude/ SeverityNegligibleLimitedCriticalCatastrophic
Warning Time>24 hrs12-24 hrs6-12 hrs< 6 hrs
Duration of Event< 6 hrs<1 day< 1 wk> 1 wk
CPRI
Hazardous Materials
Highly Likely Catastrophic < 6 hrs < 1 wk 3.9
Flooding Highly Likely Critical < 6 hrs > 1 wk 3.7
Tornado/Windstorm
Highly Likely Catastrophic < 6 hrs < 6 hrs 3.7
Severe Winter Storm
Highly Likely Critical 12-24 hrs < 1wk 3.3
Earthquake Highly Likely Limited < 6 hrs < 6 hrs 3.1
Dam Failure Likely Critical < 6 hrs < 6 hrs 3.0
Utilities Possible Negligible < 6 hrs < 1 day 2.0
Stage 3: Public Input
On-line Survey Property damage
Windstorm/Tornado #1 Disaster most likely to occur overall
Snow Storm #1 Disaster most likely to affect them personally
Tornado (Lafayette) Snow Storm (W. Lafayette) Tornado (Dayton) Ice Storm (Tippecanoe
Co.)
Public Input Continued
Additional Information provided by Respondents Need for published evacuation routes Education about warning sirens, underline gas lines List of elderly residents and a system to check on
them Restrictions on housing developments and effort to
remove debris to reduce flooding Multiple power outages in Prairie Oaks Subdivision Budgeting for snow removal / communication Forest fire hazard near Happy Hollow Park
Stage 4: Mitigation Projects
Develop Projects and Strategies Based on FEMA’s Goals:1. Prevention
2. Property Protection
3. Natural Resource Protection
4. Emergency Services
5. Structural Control Projects
6. Public Information
General Mitigation Projects
Mutual Aid Agreements Public Education & Outreach Safe Rooms & Shelters Emergency Warning Systems Communication Systems Promote Back Up Generators Improvements to the Emergency Operations
Center Zoning & Building Codes
Hazard Specific Mitigation Projects
Hazardous Materials Safety Procedures Evacuation Routes
Tornado/Wind Storm Requirements for safe rooms in new developments Stricter tie-down regulations for mobile homes Tree Maintenance
Winter Storm Tree Maintenance
Hazard Specific Mitigation Projects
Earthquake Add local data into HAZUS program
Dam Failure Emergency Action Plan Regular Maintenance & Inspection
Utility Failure Tree Maintenance Alternative Emergency Warning & Communication
Systems
Hazard Specific Mitigation Projects
Floods Special projects / studies Floodplain Management / update ordinance Buyout program Stormwater Management / Drainage Systems Community Rating System Continued participation in CTPP (map modernization) Incorporate best management practices to reduce
runoff and impervious surface
Stage 5: Adoption
Local Adoption Resubmit to IDHS & FEMA Communities Become Eligible for HGMP and
PDM Grant Dollars Implement Mitigation Strategies Update every 5 years
Planning Committee Meetings Maintain Databases
Krista Trout-Edwards, CFMArea Plan Commission of Tippecanoe Co.(765)[email protected]
Sheila McKinley, AICP, CFMChristopher B. Burke Engineering, Ltd. (317) [email protected]
