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)-423-9242ktrout-edwards@tippecanoe.in.gov

Sheila McKinley, AICP, CFMChristopher B. Burke Engineering, Ltd. (317) 266-8000smckinley@cbbel-in.com