Withlacoochee Regional Planning Council

October 9, 2014

2015 Citrus County

Local Mitigation Strategy

Timeline

Kick-off Meeting

Sections 1-4

Review

Sections 5-7

Review

Submit to Local Gov for Review

Submit to DEM

for State/

Fed Review

Submit for Local Adoption

2010 LMS

EXPIRES

April 2014

June 2014

Oct. 2014

Nov. 2014

Feb. 2015

July 2015

Sept. 13, 2015

LMS Working Group Review:

Sections 5-7 5: Vulnerability Assessment

The extent of injury and damage that may result from a hazard event of a

given intensity in a given area. The vulnerability assessment should

address impacts of hazard events on the existing and future built

environment.

6: Mitigation Strategy

The mitigation strategy serves as the long‐term blueprint for reducing

the potential losses identified in the risk assessment

7: Plan Maintenance

Methodologies

MEMPHIS (Mapping for Emergency Management, Parallel Hazard

Information System) is hazard risk assessment software created by

Kinetic Analysis Corporation under contract with the Florida

Department of Community Affairs.

Hazus Mulit-Hazard (Hazus-MH) is FEMA’s risk assessment program

for hurricanes, flood, and earthquakes.

Shelters According to the 2010 2014 Statewide Emergency Shelter

ReportPlan, Citrus County has 3 shelter locations that meet the ARC standards. Two of theseThe 3 sites include a total of 7 8 separate buildings for a total capacity of 4,7503,647 persons. The buildings on the school campuses estimated deficit of shelter space in the county is 84,476168,703 square feet needed to house an additional 3,6298,820 persons. The report also addresses our Special Needs Shelter space requirements. It reflects the existence of 138 128 qualifying spaces, equaling 8,2807,680 square feet of capacity. This reflects a deficit surplus of 18,7204,320 square feet/312 72 persons of shelter space. Other buildings identified in the 2014 Statewide Emergency Shelter Plan that either do not meet the ARC standards, or were not yet surveyed, have a total risk capacity of 18,453 people.

Tornadoes Since tornadoes are unpredictable in their pattern, frequency, and

severity, all of Citrus County is vulnerable to tornado induced

damages.

Mobile homes and older construction will be most vulnerable.

Hurricane

Hurricane: Surge

Hurricane: Surge

Hurricane HAZUS 100 Year Probabilistic Event

Hazus estimates that about 1,761 buildings will be at least moderately

damaged. This is over 2% of the total number of buildings in the

region. There are an estimated 43 buildings that will be completely

destroyed.

Expected Building Damage by Occupancy : 100 - year Event

Hurricane HAZUS 100 Year Probabilistic Event

The model estimates that a total of 365,832 tons of debris will be

generated. Of the total amount, 289,545 tons

(79%) is Other Tree Debris. Of the remaining 76,287 tons,

Brick/Wood comprises 28% of the total, Reinforced

Concrete/Steel comprises of 0% of the total, with the remainder

being Eligible Tree Debris.

Expected Building Damage by Building Type : 100 - year Event

Hurricane The model estimates 4 households to be displaced due to the

hurricane. Of these, 1 people (out of a total population of 118,085)

will seek temporary shelter in public shelters.

The total economic loss estimated for the hurricane is 142.7 million

dollars, which represents 1.83 % of the total replacement value of the

region’s buildings. Building-Related Economic Loss Estimates (Thousands of dollars)

Hurricane HAZUS Historical Hurricane Event: Jeanne

The model estimates that a total of 29,663 tons of debris will be

generated.

None Minor Moderate Severe Destruction

Occupancy Count (%) Count (%) Count (%) Count (%) Count (%)

Agriculture 348 99.65 1 0.35 0 0.01 0 0 0 0

Commercial 3,466 99.47 18 0.52 0 0.01 0 0 0 0

Education 63 99.55 0 0.45 0 0 0 0 0 0

Government 52 99.54 0 0.46 0 0 0 0 0 0

Industrial 1,036 99.54 5 0.46 0 0 0 0 0 0

Religion 272 99.67 1 0.33 0 0 0 0 0 0

Residential 66,394 99.92 54 0.08 1 0 0 0 0 0

71631 79 1 0 0

Expected Building Damage by Occupancy

None Minor Moderate Severe Destruction

Building Type Count (%) Count (%) Count (%) Count (%) Count (%)

Concrete 2,008 99.45 11 0.55 0 0 0 0 0 0

Masonry 29,601 99.89 33 0.11 1 0 0 0 0 0

MH 16,862 100 0 0 0 0 0 0 0 0

Steel 1,780 99.43 10 0.56 0 0.01 0 0 0 0

Wood 14,687 99.92 11 0.08 1 0 0 0 0 0

Expected Building Damage by Building Type

Hurricane HAZUS Historical Hurricane Event: Jeanne

The total property damage losses were 5 million dollars. 1% of the

estimated losses were related to the business interruption of the

region. By far, the largest loss was sustained by the residential

occupancies which made up over 96% of the total loss.

Category Area Residential Commercial Industrial Others Total

Building Loss

Building 3,738.27 147.73 24.89 24.72 3,935.61

Content 779.28 0 0 0 779.28

Inventory 0 0 0 0 0

Subtotal 4,517.55 147.73 24.89 24.72 4,714.89

Business Interruption

Income 0 0 0 0 0

Relocation 4.83 1.13 0 0.03 5.98

Rental 9.25 0 0 0 9.25

Wage 0 0 0 0 0

ALL Subtotal 14.08 1.13 0 0.03 15.23

Total 4,531.63 148.85 24.89 24.74 4,730.12

Building-Related Economic Loss Estimates (Thousands of dollars)

Flood

Flood

Flood

Flood HAZUS Coastal and Riverine Flooding Scenario

Hazus estimates that about 10,850 buildings will be at least

moderately damaged. This is over 78% of the total number of

buildings in the scenario. There are an estimated 5,584 buildings

that will be completely destroyed.

Expected Building Damage by Occupancy

1-10 11-20 21-30 31-40 41-50 Substantially

Occupancy Count (%) Count (%) Count (%) Count (%) Count (%) Count (%)

Agriculture 0 0 0 0 0 0 0 0 0 0 0 0

Commercial 2 3.77 27 50.94 10 18.87 8 15.09 4 7.55 2 3.77

Education 0 0 1 100 0 0 0 0 0 0 0 0

Government 0 0 0 0 0 0 0 0 0 0 0 0

Industrial 0 0 0 0 0 0 1 20 0 0 4 80

Religion 0 0 2 100 0 0 0 0 0 0 0 0

Residential 8 0.07 300 2.78 1,496 13.85 577 5.34 2,840 26.3 5,578 51.65

Total 10 330 1506 586 2844 5584

The model estimates 9,489 households will be displaced due to the

flood. Displacement includes households evacuated from within or

very near to the inundated area. Of these, 23,303 people (out of a

total population of 118,085) will seek temporary shelter in public

shelters.

Flood

Expected Building Damage by Building Type

1-10 11-20 21-30 31-40 41-50 Substantially

Building Type Count (%) Count (%) Count (%) Count (%) Count (%) Count (%)

Concrete 0 0 4 2.31 28 16.18 11 6.36 92 53.18 38 21.97

ManufHousing 0 0 0 0 1 0.02 0 0 22 0.54 4,031 99.43

Masonry 5 0.1 238 4.85 1,096 22.33 432 8.8 2,014 41.04 1,123 22.88

Steel 2 5.56 15 41.67 3 8.33 6 16.67 4 11.11 6 16.67

Wood 1 0.06 65 3.81 378 22.16 139 8.15 731 42.85 392 22.98

The total economic loss estimated for the flood is 1,864.58 million

dollars, which represents 44.67 % of the total replacement value of

the scenario buildings.

The total building-related losses were 1,856.09 million dollars. 0% of

the estimated losses were related to the business interruption of the

region. The residential occupancies made up 57.55% of the total loss. Table 6: Building-Related Economic Loss Estimates

(Millions of dollars)

Category Area Residential Commercial Industrial Others Total

Building Loss

Building 673.63 171.87 36.18 21.3 902.97

Content 397.4 375.94 68.13 84.65 926.12

Inventory 0 11.06 14.64 1.3 27

Subtotal 1,071.03 558.86 118.94 107.26 1,856.09

Business Interruption

Income 0.12 1.9 0 0.18 2.21

Relocation 1.29 0.47 0 0.07 1.84

Rental Income 0.34 0.26 0 0.01 0.6

Wage 0.32 2.17 0.01 1.35 3.84

ALL Subtotal 2.07 4.8 0.01 1.61 8.49

Total 1,073.10 563.66 118.95 108.86 1,864.58

Flood

Wildfire

Wildfire Fire Intensity Scale (FIS) identifies areas where significant fuel

hazards and associated dangerous fire behavior potential exist

The Wildland Urban Interface (WUI) Risk Index layer is a rating of

the potential impact of a wildfire on people and their homes.

For the Citrus project area, it is estimated that 137,948 people or 98

percent of the total project area population (141,215) live within the

WUI.

Wildfire

Wildfire

The Wildland Urban Interface (WUI) Risk Index layer is a rating of

the potential impact of a wildfire on people and their homes. The

key input, WUI, reflects housing density (houses per acre)

consistent with Federal Register National standards.

Wildfire

Wildfire

Land Subsidence

Land subsidence and sinkholes would impact the entire County in

the same manner; however, the risk is based primarily on past

occurrences and location/ relationship to known sinkhole hazard

areas. The majority of the sinkholes in Citrus County have occurred

in the northwestern part of the County, and many have impacted

roadways.

Land Subsidence

Land Subsidence

Hazardous Materials The analysis revealed that 32 93 properties (20 41 of which are

single-family residential) are within 100 feet of a Section 302

hazardous materials facility zone. The moderate-risk zone intersects

with 609 930 properties, and the low-risk zone encompassed

2,0803,069 properties Critical Facilities Vulnerable to Hazardous Material Incidents

Critical Facility

Critical Facilities Vulnerable to

HazMat Incidents

High Moderate Low

Fire Station 0 0 1 3

Government Building 1 0 2 1 3

Hospital/Health 0 1 4 3 10

School/Shelter 0 1 0 3 0

Water/Wastewater 0 5 2 10 4 19

Utility/Other 0 1 5

Total 1 5 7 18 19 40

Questions