High Winds Tornadoes€¦ · Piedmont Multi-Hazard Mitigation Planning Goals & Objectives (cont.) 3. Structural Projects. Provide fortified buildings for critical public facilities

City of Piedmont

Multi-Hazard

Mitigation Planning

City of PiedmontCity of Piedmont

High WindsHigh Winds &&TornadoesTornadoesMarch 2, 2010March 2, 2010

MultiMulti--Hazard Hazard Mitigation Plan Mitigation Plan

UpdateUpdate

City of Piedmont

Multi-Hazard

Mitigation Planning

Flanagan & Associates, LLCFlanagan & Associates, LLC

Planning ConsultantsPlanning ConsultantsTulsa, OKTulsa, OK

www.rdflanagan.comwww.rdflanagan.comrdflanagan@[email protected]

Plan can be reviewed at:Plan can be reviewed at:www.rdflanagan.com/Canadian.htmlwww.rdflanagan.com/Canadian.html

mailto:[email protected]

City of Piedmont

Multi-Hazard

Mitigation Planning

Chapter 3: Chapter 3: Committee Committee

MembersMembers

City of Piedmont

Multi-Hazard

Mitigation Planning


MembersMembers

City of Piedmont

Multi-Hazard

Mitigation Planning


MembersMembers

City of Piedmont

Multi-Hazard

Mitigation Planning


MembersMembers

City of Piedmont

Multi-Hazard

Mitigation Planning

Step 1:Step 1: Organize to Prepare the PlanOrganize to Prepare the Plan

Step 2:Step 2: Involve the PublicInvolve the Public

Step 3:Step 3: Coordinate with Other Agencies and Coordinate with Other Agencies and OrganizationsOrganizations

Step 4:Step 4: Assess the HazardAssess the Hazard

Step 5:Step 5: Assess the Problem (i.e., Specific Assess the Problem (i.e., Specific Vulnerabilities)Vulnerabilities)

Step 6:Step 6: Set Goals (i.e., Priorities Based Upon Set Goals (i.e., Priorities Based Upon Assessments)Assessments)

Step 7:Step 7: Review Possible Activities (i.e., Review Possible Activities (i.e., Mitigation Measures)Mitigation Measures)

Step 8:Step 8: Draft the Action PlanDraft the Action Plan

Step 9:Step 9: Adopt the PlanAdopt the Plan

Step 10:Step 10: Monitor, Evaluate, and Update Monitor, Evaluate, and Update –– Chapter 7Chapter 7

Overview of Planning ProcessOverview of Planning Process

City of Piedmont

Multi-Hazard

Mitigation Planning

High WindsHigh Winds

City of Piedmont

Multi-Hazard

Mitigation Planning

High WindsHigh Winds

FLASH OpeningsFLASH Openings

From FLASHFrom FLASH®® -- The Federal Alliance for Safe HomesThe Federal Alliance for Safe HomesAll FLASH videos available at All FLASH videos available at

www.rdflanagan.com/videos/videos.htmlwww.rdflanagan.com/videos/videos.html

City of Piedmont

Multi-Hazard

Mitigation Planning

High Winds

DerechoDerecho: an intense, fast: an intense, fast--moving storm with sustained straight line windsmoving storm with sustained straight line winds

City of Piedmont

Multi-Hazard

Mitigation Planning

High Winds

Tulsa OK Micro-burst, June 6, ‘06

City of Piedmont

Multi-Hazard

Mitigation Planning

How High Winds Affect Buildings

City of Piedmont

Multi-Hazard

Mitigation Planning

High Wind Events, Piedmont

8 High Wind events since 1989

Average reported wind speed of 74.5 miles per hour

$83,000 in reported structure damages according to NCDC data

City of Piedmont

Multi-Hazard

Mitigation Planning

Who are the vulnerable populations in the

Piedmont area?

City of Piedmont

Multi-Hazard

Mitigation Planning

Vulnerable Populations and Vulnerable Populations and ResourcesResources

HomeownersHomeowners

Property managersProperty managers

People who speak a language People who speak a language other than English, limiting their other than English, limiting their ability to receive warning ability to receive warning messagesmessages

Homes & buildings. In particular, Homes & buildings. In particular, older homes or glassolder homes or glass--clad clad buildingsbuildings

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & ObjectivesGoals & Objectives

GOAL: GOAL: To reduce injuries and loss To reduce injuries and loss of life; trauma; damage to of life; trauma; damage to property, equipment and property, equipment and infrastructure; community infrastructure; community disruption; and economic, disruption; and economic, environmental and other losses environmental and other losses caused by high winds.caused by high winds.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & ObjectivesGoals & Objectives1.1. Public Information & Education. Public Information & Education. Improve Improve

public awareness of High Wind hazards, in public awareness of High Wind hazards, in general and in specific highgeneral and in specific high--risk risk situations, and give people knowledge situations, and give people knowledge about measures by which people can about measures by which people can protect themselves, their property and protect themselves, their property and their community.their community.

2.2. Preventive Measures. Preventive Measures. Prevent or reduce Prevent or reduce highhigh--wind losses by strengthening wind losses by strengthening buildings and by publicizing, training, and buildings and by publicizing, training, and creating market options for fortified new creating market options for fortified new construction, retrofits, code changes and construction, retrofits, code changes and codecode--plus innovations.plus innovations.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & Objectives (cont.)Goals & Objectives (cont.)

3.3. Structural Projects. Structural Projects. Provide fortified Provide fortified buildings for critical public facilities and buildings for critical public facilities and vulnerable populations, including vulnerable populations, including children; offer training and incentive to children; offer training and incentive to encourage people of means to build encourage people of means to build stronger structures in new and retrofit stronger structures in new and retrofit building projects.building projects.

4.4. Property Protection. Property Protection. Identify and protect Identify and protect people, structures, and critical people, structures, and critical infrastructure that are vulnerable to high infrastructure that are vulnerable to high winds, with emphasis on critical facilities.winds, with emphasis on critical facilities.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & Objectives (cont.)Goals & Objectives (cont.)5.5. Emergency Services. Emergency Services. Identify needs for & Identify needs for &

implement additional emergency operations implement additional emergency operations plans and services to expand safety in plans and services to expand safety in dangerous windstorms, including dangerous windstorms, including Community Emergency Response Team Community Emergency Response Team (CERT) training.(CERT) training.

6.6. Natural Resource Protection. Natural Resource Protection. Take Take advantage of opportunities for highadvantage of opportunities for high--wind wind programs & policies that reduce negative programs & policies that reduce negative environmental impacts. Examples include environmental impacts. Examples include sustainable programs for debris sustainable programs for debris mngmntmngmnt & & recycling, & fortified construction with recycling, & fortified construction with environmentally friendly materials.environmentally friendly materials.

City of Piedmont

Multi-Hazard

Mitigation Planning

Combined with TornadoesCombined with Tornadoes

Mitigation Measures 2003 PlanMitigation Measures 2003 Plan&&

Potential Mitigation MeasuresPotential Mitigation Measures

City of Piedmont

Multi-Hazard

Mitigation Planning

TornadoesTornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

TornadoesTornadoes

FLASH StrapsFLASH Straps

From FLASHFrom FLASH®® -- The Federal Alliance for Safe HomesThe Federal Alliance for Safe HomesAll FLASH videos available at All FLASH videos available at

www.rdflanagan.com/videos/videos.htmlwww.rdflanagan.com/videos/videos.html

City of Piedmont

Multi-Hazard

Mitigation Planning

US Tornado Paths, 1950 - 2003

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

Greensburg, KS – May 4, 2007

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

Tornadoes

Significant (F2 or greater)Tornado Days per Century (1921-1995)

City of Piedmont

Multi-Hazard

Mitigation Planning

Tornadoes

US Tornado Deaths per Million PeopleUS Tornado Deaths per Million People

City of Piedmont

Multi-Hazard

Mitigation Planning

City of Piedmont

Multi-Hazard

Mitigation Planning

City of Piedmont

Multi-Hazard

Mitigation Planning

Moore Tornado – May 3, 1999

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

BUILDING COST: Percentage BreakdownTypical Single-Family Residence

ITEMS % of COST

FoundationFoundation 6.906.90SuperstructureSuperstructure 20.7020.70RoofingRoofing 4.404.40InsulationInsulation 3.503.50Exterior FinishExterior Finish 6.906.90Interior FinishInterior Finish 9.809.80DoorsDoors--WindowsWindows 4.604.60Lumber, FinishedLumber, Finished 4.604.60HardwareHardware 1.301.30Cabinets, CountertopsCabinets, Countertops 5.805.80Floor CoveringFloor Covering 5.005.00PlumbingPlumbing 9.009.00ElectricalElectrical 6.206.20BuiltBuilt--in Appliancesin Appliances 2.802.80HVACHVAC 4.704.70PaintingPainting 3.803.80

TotalsTotals 100%100%Source: FEMA Residential Substantial

Damage Estimator

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

FUJITA SCALE: F-0 GALE (40-72 mph) Enhanced: (65-85 mph)Damage to chimneys, tree branches, shallow root trees

ITEMS % DAMAGE

Foundation 0Superstructure .75Roofing 1Insulation .50Exterior Finish 1Interior Finish 0Doors-Windows 1Lumber, Finished 0Hardware 0Cabinets, Countertops 0Floor Covering 0Plumbing 0Electrical .5Built-in Appliances 0HVAC 0Painting .25

Totals 5%

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

FUJITA SCALE: F-1 MODERATE (73-112 mph) Enhanced: (86-110 mph)

Lower limit of Tornado wind speed– surfaces peeled off roofs, mobile homes pushed off foundations/overturned, cars pushed off roads.

ITEMS % DAMAGE

Foundation 0Superstructure 1.25Roofing 2.25Insulation .75Exterior Finish 2Interior Finish 0Doors-Windows 1.50Lumber, Finished 0Hardware 0Cabinets, Countertops 0Floor Covering 0Plumbing 0Electrical .75Built-in Appliances 0HVAC .50Painting .75

Totals 10%

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

FUJITA SCALE: F-2 SIGNIFICANT (113-157 mph) Enhanced: (111-135)

Roofs torn off frame houses, mobile homes demolished, large trees snapped or uprooted, light-object missiles generated

ITEMS % DAMAGE

Foundation 0Superstructure 10.3Roofing 4.40Insulation 1.75Exterior Finish 4.00Interior Finish 1.90Doors-Windows 4.60Lumber, Finished 2.00Hardware .30Cabinets, Countertops .50Floor Covering 1.25Plumbing .45Electrical 3.10Built-in Appliances 0HVAC 3.50Painting 1.90

Totals 40%

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

FUJITA SCALE: F-3 SEVERE (158-206 mph) Enhanced: (136-165 mph)

Roofs and some walls torn off well constructed houses, most trees uprooted, cars lifted off ground and thrown

ITEMS % DAMAGE

Foundation 3.10Superstructure 16.25Roofing 4.40Insulation 2.00Exterior Finish 5.75Interior Finish 6.25Doors-Windows 4.50Lumber, Finished 4.25Hardware 1.00Cabinets, Countertops 4.25Floor Covering 4.75Plumbing 7.25Electrical 5.75Built-in Appliances 2.25HVAC 4.50Painting 3.50

Totals 80%

Tornadoes

City of Piedmont

Multi-Hazard

Mitigation Planning

TornadoesFUJITA SCALE: F-4 DEVASTATING (207-260 mph) Enhanced: (166-200)

mph)Well-constructed houses leveled, structures with weak foundations

blown some distance, cars thrown, and large missiles generated.ITEMS % DAMAGE


Totals 100%

City of Piedmont

Multi-Hazard

Mitigation Planning

TornadoesFUJITA SCALE: F-5 INCREDIBLE (261-318 mph) Enhanced: (>200 mph)Strong frame houses lifted off foundations & carried considerable distances

to disintegrate, auto-sized missiles fly through air in excess of 100 yds, trees debarked.

ITEMS % DAMAGE


Totals 100%

City of Piedmont

Multi-Hazard

Mitigation Planning

PiedmontHistoric

Tornadoes1950 –

2008

City of Piedmont

Multi-Hazard

Mitigation Planning

PiedmontWorst-Case ScenarioUsingMay 3rd, 1999Tornado Path

City of Piedmont

Multi-Hazard

Mitigation Planning

F- Value FactorStructure

Damage

Content

ValueContentDmg

Total Dmg

1 $14.7 10% $1.4 $7.3 $.368

$1.4

$3.8

$9.6

$5.6

$20.9

2 $14.4 40% $5.7 $7.2

$1.8

$7.2

$19.0

$28.9

$17.0

3 $19.0 80% $15.2 $9.5

4 $19.2 100% $19.2 $9.6

5 $11.3 100% $11.3 $5.6

$78.9 $53.1 $39.4 $74.1

City of Piedmont – Damage Scenario(in Millions of $)

City of Piedmont

Multi-Hazard

Mitigation Planning

School DistrictTornado issues

City of Piedmont

Multi-Hazard

Mitigation Planning

"The whole building just collapsed on everybody," said a

student at the school. "A bunch of people were trapped

under cinder blocks…”

Enterprise AL, 2007

City of Piedmont

Multi-Hazard

Mitigation Planning

Greenwood, Ks High School

City of Piedmont

Multi-Hazard

Mitigation Planning

Designated corridors Designated corridors for tornado drills in for tornado drills in the Wichita KS Public the Wichita KS Public School District.School District.

(May 3, 1999)(May 3, 1999)

Before & Before & AfterAfter

City of Piedmont

Multi-Hazard

Mitigation Planning

““You can't teach in an unsafe, You can't teach in an unsafe, potentially dangerous potentially dangerous

situation. If you aren't taking situation. If you aren't taking steps for mitigating you are steps for mitigating you are

morally and legally at faultmorally and legally at fault. If . If you're not prepared to expect you're not prepared to expect the unexpected, you're rolling the unexpected, you're rolling

the dice.the dice.””

Peter Anderson, Los Angeles Peter Anderson, Los Angeles Unified School DistrictUnified School District

City of Piedmont

Multi-Hazard

Mitigation Planning

Newcastle OK School SafeRoomNewcastle OK School SafeRoom

City of Piedmont

Multi-Hazard

Mitigation Planning

Average budget increase for a new school designed to serve approx. 600 students –2.5-3.5%

For new school additions, an additional $40/sq. ft.

FEMA Case Study

School SafeRooms

City of Piedmont

Multi-Hazard

Mitigation Planning

Beggs OK School SafeRoom & Beggs OK School SafeRoom & Event CenterEvent Center

City of Piedmont

Multi-Hazard

Mitigation Planning

Maple Public SchoolsMaple Public Schools’’ Safe RoomSafe Room

City of Piedmont

Multi-Hazard

Mitigation Planning

During a storm or other disaster, During a storm or other disaster, flying glass is a significant hazard flying glass is a significant hazard that accounts for most injuries. that accounts for most injuries. The risks become even greater in The risks become even greater in some new buildings, which often some new buildings, which often are designed with increased are designed with increased glazing to capture daylighting glazing to capture daylighting benefits.benefits.

Impact Resistant Window Impact Resistant Window SystemsSystems

American School & University magazineAmerican School & University magazine

City of Piedmont

Multi-Hazard

Mitigation Planning

HighHigh--wind & tornado protectionwind & tornado protectionBurglary & vandalism protectionBurglary & vandalism protectionNoise reductionNoise reductionSun protectionSun protectionEnergy savingsEnergy savings

Impact Resistant Window Impact Resistant Window SystemsSystems

City of Piedmont

Multi-Hazard

Mitigation Planning

““How wonderful it is for How wonderful it is for students, staff, and parents students, staff, and parents to have a place for students to have a place for students to go while at school so they to go while at school so they will feel safe and secure will feel safe and secure during tornado activityduring tornado activity””

Julie HedrickJulie HedrickWichita KS Public School DistrictWichita KS Public School District

City of Piedmont

Multi-Hazard

Mitigation Planning

Who are the vulnerable populations in the

Piedmont area?

City of Piedmont

Multi-Hazard

Mitigation Planning

Vulnerable Populations and Vulnerable Populations and ResourcesResources

HomeownersHomeowners

Property managersProperty managers

Travelers and visitorsTravelers and visitors

People who speak a language other People who speak a language other than English, limiting their ability to than English, limiting their ability to receive warning messagesreceive warning messages

Homes & buildings. In particular, Homes & buildings. In particular, older homes or glassolder homes or glass--clad buildingsclad buildings

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & ObjectivesGoals & Objectives

GOAL: GOAL: To reduce injuries and To reduce injuries and loss of life, trauma, damage to loss of life, trauma, damage to property, equipment and property, equipment and infrastructure, community infrastructure, community disruption, and economic, disruption, and economic, environmental and other environmental and other losses caused by tornadoes.losses caused by tornadoes.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & ObjectivesGoals & Objectives1.1. Public Information & Education. Public Information & Education. Improve Improve

public awareness of tornado hazards in public awareness of tornado hazards in general and in specific highgeneral and in specific high--risk situations, risk situations, and give people knowledge about measures and give people knowledge about measures they can use to protect themselves, their they can use to protect themselves, their property and their community.property and their community.

2.2. Preventive Measures. Preventive Measures. Prevent or reduce Prevent or reduce tornado losses by strengthening buildings tornado losses by strengthening buildings and by publicizing, training, and creating and by publicizing, training, and creating market options for fortified new market options for fortified new construction, retrofits, code changes, and construction, retrofits, code changes, and codecode--plus innovations.plus innovations.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & Objectives (cont.)Goals & Objectives (cont.)3.3. Structural Projects. Structural Projects. Identify costs and Identify costs and

benefits of lossbenefits of loss--prevention programs, prevention programs, such as covered vehicle parking, with such as covered vehicle parking, with consideration for uncalculated benefits consideration for uncalculated benefits such as averting response delays and such as averting response delays and business losses.business losses.

4.4. Property Protection. Property Protection. Identify, fund, and Identify, fund, and implement projects to protect people and implement projects to protect people and public and private property from losses public and private property from losses in hail events, including critical in hail events, including critical infrastructure such as utilities or public infrastructure such as utilities or public vehicles.vehicles.

City of Piedmont

Multi-Hazard

Mitigation Planning

Goals & Objectives (cont.)Goals & Objectives (cont.)5.5. Emergency Services. Emergency Services. Identify the needs for Identify the needs for

and implement additional emergency and implement additional emergency operations plans and services to expand operations plans and services to expand tornado safety, including Community tornado safety, including Community Emergency Response Team (CERT) training.Emergency Response Team (CERT) training.

6.6. Natural Resource Protection. Natural Resource Protection. Take Take advantage of opportunities for tornado advantage of opportunities for tornado programs and policies that reduce negative programs and policies that reduce negative environmental impacts. Examples include environmental impacts. Examples include sustainable programs for debris sustainable programs for debris management and recycling, and fortified management and recycling, and fortified construction with environmentally friendly construction with environmentally friendly materials.materials.

City of Piedmont

Multi-Hazard

Mitigation Planning

““Provide safeProvide safe--room rebates for room rebates for especiallyespecially--vulnerable populations (e.g., vulnerable populations (e.g., elderly, infirm, impoverished).elderly, infirm, impoverished).””..””

““Supply NOAA Weather Radio to all local Supply NOAA Weather Radio to all local government buildings, schools, government buildings, schools, hospitals, and critical facilities.hospitals, and critical facilities.””

““Install SafeRooms in schools.Install SafeRooms in schools.””

““Inspect community schools for tornado Inspect community schools for tornado and high wind vulnerability.and high wind vulnerability.””

Mitigation Measures 2003 PlanMitigation Measures 2003 PlanWhere do we stand on them?Where do we stand on them?

City of Piedmont

Multi-Hazard

Mitigation Planning

““Insure that community building code Insure that community building code requires proper shingle installation.requires proper shingle installation.””

““Develop public awareness programs and Develop public awareness programs and provide materials (e.g., roofprovide materials (e.g., roof--toto--wall wall straps) and mitigation measures that straps) and mitigation measures that protect a buildingprotect a building’’s roof, all outside s roof, all outside openings, and the building envelope.openings, and the building envelope.””

““When replaced, install breakWhen replaced, install break--resistant resistant glass systems in government offices glass systems in government offices and critical facilities.and critical facilities.””


City of Piedmont

Multi-Hazard

Mitigation Planning

““Install storm shelters in childcare Install storm shelters in childcare centers.centers.””

““Install SafeRooms in fire and police Install SafeRooms in fire and police stations to protect first responders.stations to protect first responders.””

““Investigate community tornado shelter Investigate community tornado shelter programs implemented in other cities programs implemented in other cities or states.or states.””

““Consider painting street names and Consider painting street names and house numbers on curbs for house numbers on curbs for identifying addresses when landmarks identifying addresses when landmarks are absent.are absent.””


City of Piedmont

Multi-Hazard

Mitigation Planning

““Review and update the debris Review and update the debris management plan.management plan.””

““Educate the public about construction Educate the public about construction methods designed for overall methods designed for overall structural resistance to tornadoes and structural resistance to tornadoes and high winds.high winds.””

““Begin a revolving fund for families to Begin a revolving fund for families to build SafeRooms.build SafeRooms.””


City of Piedmont

Multi-Hazard

Mitigation Planning

Potential mitigation measures

Which 2003 measures do we keep?

What are some additional measures we may adopt in 2010?

City of Piedmont

Multi-Hazard

Mitigation Planning

Tornado/High Wind Measures Tornado/High Wind Measures (Examples)(Examples)

Public Information & EducationPublic Information & Education

Preventive MeasuresPreventive Measures

Educate residents on the National Storm Shelter Educate residents on the National Storm Shelter Association (NSSA) certification seal for storm Association (NSSA) certification seal for storm shelters that meet the Associationshelters that meet the Association’’s standards. s standards. Incorporate into zoning and regulatory measures Incorporate into zoning and regulatory measures adopted by the community?adopted by the community?

City of Piedmont

Multi-Hazard

Mitigation Planning

Structural ProjectsStructural Projects

Support the installation of SafeRooms at childSupport the installation of SafeRooms at child--care centers.care centers.


City of Piedmont

Multi-Hazard

Mitigation Planning

Preventive MeasuresPreventive Measures

Adopt ordinances requiring additional Fortified Adopt ordinances requiring additional Fortified building guidelines for residential structures.building guidelines for residential structures.


City of Piedmont

Multi-Hazard

Mitigation Planning

Fortified HomeInstitute for Business & Home Safety (IBHS)

StructuralLoad Paths

www.disastersafety.orgwww.disastersafety.org

City of Piedmont

Multi-Hazard

Mitigation Planning


Connection To Foundation, Connection To Foundation, Slab On GradeSlab On Grade

Anchor BoltsAnchor Bolts


City of Piedmont

Multi-Hazard

Mitigation Planning


Wall To Foundation


City of Piedmont

Multi-Hazard

Mitigation Planning



City of Piedmont

Multi-Hazard

Mitigation Planning


Connectors for roofConnectors for roofsystem


City of Piedmont

Multi-Hazard

Mitigation Planning

Wyandotte Wyandotte Nation Tribal Nation Tribal

HousingHousing

Fortified Homes Fortified Homes Foundation Bolts & Rafter Foundation Bolts & Rafter

RoofRoof--toto--Wall StrapsWall Straps

City of Piedmont

Multi-Hazard

Mitigation Planning


Reinforce Garage Doors


This home suffered substantially lessThis home suffered substantially lessdamage due to its doubledamage due to its double--widewidegarage doors remaining intactgarage doors remaining intact


Extreme Risk: Greater than 6.0Extreme Risk: Greater than 6.0 Medium Risk: 2.5 Medium Risk: 2.5 -- 4.04.0

High Risk: 4.0 to 6.0High Risk: 4.0 to 6.0 Low Risk: Less than 2.5Low Risk: Less than 2.5

Instructions:Instructions:

Score each hazard based on a scale of 0 to 5 with 5 being highesScore each hazard based on a scale of 0 to 5 with 5 being highest.t.

Historical Occurrence: Based on number of occurrence in last 20 Historical Occurrence: Based on number of occurrence in last 20 yrs. Max is yrs. Max is ““55””; ; if a new hazard use if a new hazard use ““00””..

Probability: Score Probability: Score ““00”” if nonif non--existent, 1 if <1%, 2 if <5%, 3 if <10%, 4 if <20%, & 5 existent, 1 if <1%, 2 if <5%, 3 if <10%, 4 if <20%, & 5 if if ≥≥20%. Probability is likelihood an event will occur. History & pr20%. Probability is likelihood an event will occur. History & probability are obability are similar, but hazards that are newly developing, hazards where lisimilar, but hazards that are newly developing, hazards where likelihood is kelihood is greater or less based on new developments or activities, or hazagreater or less based on new developments or activities, or hazards that rds that have lack of historical information need to be considered indivihave lack of historical information need to be considered individually.dually.

Impact: Based on Impact: Based on ““worstworst--case scenariocase scenario”” -- greatest possible impact should worstgreatest possible impact should worst--case event occur. Impact is in terms of case event occur. Impact is in terms of human casualties, property loss, human casualties, property loss, infrastructure damage & business interruption/lost revenueinfrastructure damage & business interruption/lost revenue issues. issues. Secondary events need to be factored in where necessary. Assume Secondary events need to be factored in where necessary. Assume maximum maximum population when appropriate (for example, industrial park duringpopulation when appropriate (for example, industrial park during peak work peak work hours).hours).

Analysis Analysis Results:Results:

Hazard Vulnerability Analysis

OccurrenceOccurrence ImpactImpact ResourcesResources

HistoryHistory ProbProb Hum.Hum. PropProp InfraInfra BusBus Int.Int. Ext.Ext.

11

22

TotalTotal

Dam / LeveeDam / Levee

DroughtDrought 33 33EarthquakeEarthquake

Expansive SoilsExpansive Soils 55 55

FloodingFlooding 55 55HailHail 44 55 11 55 22 11 33 33 4.34.3HazMat, FixedHazMat, Fixed 33 33Heat, ExtremeHeat, Extreme 55 55High WindsHigh Winds 55 55LightningLightning 44 44 11 11 22 11 33 33 3.23.2TornadoesTornadoes 33 33TransportationTransportation 33 33Urban FiresUrban Fires 55 55WildfiresWildfires

Winter StormsWinter Storms 55 55

MitMit’’nnActivitiesActivitiesType of HazardType of Hazard

City of Piedmont

Multi-Hazard

Mitigation Planning

City of Piedmont

Multi-Hazard

Mitigation Planning

Plan can be reviewed at:Plan can be reviewed at:www.rdflanagan.com/Canadian.htmlwww.rdflanagan.com/Canadian.html

Questions or CommentsQuestions or Comments??

Documents

High Winds Tornadoes€¦ · Piedmont Multi-Hazard Mitigation Planning Goals & Objectives (cont.) 3. Structural Projects. Provide fortified buildings for critical public facilities