2010 Metro Mitigation Plan

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Past Occurrences There have been 164 recorded winter storm events in Davidson County since 1779. These events are presented in Appendix B. Likelihood of Future Occurrences Nashville and Davidson County may anticipate 6 to 12 inches of snowfall annually, according to the National Weather Service (Figure 4-24). Figure 4-24 Annual Mean Snowfall (Courtesy of the National Weather Service) Metropolitan Nashville - Davidson County Hazard Identification Multi-Hazard Mitigation Plan Page 4-76 April 2010
Multi-Hazard Mitigation Plan 4.2 Vulnerability Assessment Once the hazard identification step was complete, the Community Planning Team (CPT) conducted a Vulnerability Assessment to describe the impact that each hazard identified in the preceding section would have upon Metropolitan Nashville-Davidson County. As a starting point, the CPT used the parcel data available from the Metro Planning Department and Assessor of Property to define a baseline against which all other disaster impacts could be compared. The baseline is the catastrophic, worst-case scenario: the assessed value of the entire county as a whole. Total Vulnerability of Metro Nashville-Davidson County to Catastrophic Disaster Risk –Low; Vulnerability – Extremely High The current total values of Metro Nashville-Davidson County, as maintained by the Assessor’s office are presented in Table 4-26. Property Type Table 4-26. Catastrophic Damages Total Number of Parcels Number of Parcels with Improvement Value Improvement Value Bank / Finance 175 173 $118,402,400 Commercial 12,810 9,365 $7,427,521,627 Education * 296 75 $128,427,425 Emergency / Medical 360 354 $1,137,995,611 Industrial 2,503 2,426 $2,211,135,305 Other (Government/Institutional) ** 1,731 1,069 $958,221,580 Residential - Mobile Home 574 562 $10,034,600 Residential - Mobile Home Park 47 47 $32,179,500 Residential 202,933 184,448 $28,497,672,287 Rural 10,606 7,133 $1,020,525,600 Telecommunications 92 30 $3,793,200 Recreation 263 69 $82,101,880 Uncoded Parcels 5,001 2,316 $544,241,600 Total 237,391 205,745 42,172,252,615 * Metro Schools would be tax exempt and may not have an appraised value for improvement. **Many of these properties would be tax exempt and may not have an appraised value for the improvement. Metropolitan Nashville - Davidson County Vulnerability Assessment Multi-Hazard Mitigation Plan Page 4-77 April 2010
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Metropolitan Nashville-Davidson Cou
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4.2 Vulnerability Assessment ......
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LIST OF FIGURES Figure 2-1 Metropol
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USDA USGA WCT WNV United States Dep
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Metropolitan Nashville-Davidson Cou
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equired revision every 5 years. The
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Figure 2-1. Metropolitan Nashville-
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Subarea 1 - Joelton Joelton is loca
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Nashville, coupled with the concent
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Interstate 24 and Briley Parkway; t
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(This page has been left blank inte
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Figure 3-1. Similarity Between DMA
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Step 2: Involve the Public In addit
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Step 5: Assess the Problem Once the
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Table 4-1. Federal Disaster Declara
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Figure 4-2. Dams and Levees within
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management. Total storage capacity
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infrequent occurrence. There has ne
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Likelihood of Future Occurrences Th
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WATERSHED Table 4-3. Major Sources
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All streams within Metro Nashville,
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Nashville entered the flood insuran
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Damage Reach 1 Damage Reach 2 Damag
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Dry Creek Watershed The Dry Creek W
Page 56 and 57: performed. Primarily a rural portio
Page 58 and 59: Damage Reach 1 Damage Reach 2 Damag
Page 62 and 63: Table 4-13. Pages Branch Damage Rea
Page 64 and 65: Table 4-14. Richland Creek Damage R
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Page 72 and 73: Cumberland River The Cumberland Riv
Page 74 and 75: The Southern Appalachian Seismic Zo
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Page 80 and 81: Figure 4-10. Evidence of Landslides
Page 82 and 83: Figure 4-11b. Slopes greater than 2
Page 84 and 85: Figure 4.13 Karst Hazard Map of Ten
Page 86 and 87: Human cases have been reported in a
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Page 90 and 91: The PDSI indicates that for the per
Page 94 and 95: Figure 4-18. Tennessee Forestry Dis
Page 96 and 97: how hot it feels to an individual w
Page 100 and 101: Figure 4-21. Average Number of Thun
Page 104 and 105: Past Occurrences Several severe tor
Page 108 and 109: Critical Facilities Of significant
Page 110 and 111: Scientific Name Common Name Federal
Page 112 and 113: Historic and Natural Resources are
Page 114 and 115: West Nile Virus is spread through m
Page 116 and 117: DAM & LEVEE FAILURES Risk - Moderat
Page 118 and 119: WNQM AM 1300; WUPX UPN 30; WVOL AM
Page 120 and 121: Table 4-31. Earthquake Hazard Damag
Page 124 and 125: Figure 4-25 Tornado Siren Locations
Page 128 and 129: Table 4-33. Metropolitan Nashville-
Page 130 and 131: Evaluation of Existing Capabilities
Page 132 and 133: Harpeth River - Newsom Station Road
Page 134 and 135: 4. MWS has prioritized Capital Impr
Page 136 and 137: GOAL #3: Objective 3.1: Objective 3
Page 138 and 139: measures. Team members were allowed
Page 140 and 141: 2009 Update: Since the creation of
Page 142 and 143: Community Benefit: Potential fundin
Page 144 and 145: staff gages were installed in 2009
Page 146 and 147: Existing permit procedures should b
Page 148 and 149: Community Benefit: Life safety, Pot
Page 150 and 151: • Develop public-private partners
Page 152 and 153: 2009 Update: MWS continues to send
Page 154 and 155: Metro officials should talk to thei
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COMPLETED ACTION 4: Double the numb
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• Construct tornado saferooms and
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With the adoption of this plan, the
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of the CPT. In addition, technical
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PROMULGATION STATMENT Date: TBD To:
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2. Multi-Hazard Mitigation Plan Sta
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METROPOLITAN GOVERNMENT OF NASHVILL
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Figure A-5 Mass email sent out from
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FLOODING-1 No. Location Historical
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FLOODING-3 No. Location Historical
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EARTHQUAKES-2 No. Date Richter Magn
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INFESTATIONS-1 West Nile Virus Loca
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WILDFIRES-1 No. Location Year Histo
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EXTREME COLD TEMPERATURES-2 No. Loc
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EXTREME HOT TEMPERATURES-1 No. Loca
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THUNDERSTORMS-1 No. Location Histor
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TORNADOES-2 No. Location Historical
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TORNADOES-4 No. Location Historical
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WINTER STORMS-1 No. Location Histor
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Metropolitan Nashville - Davidson C
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MCALPINE AV Cooper Creek DR 3 HART
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Trib. No. 3 GALLATIN PK OLD HICKORY
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HEATH RD BUFFALO RD HUNTWICK TRL HW
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NOLENSVILLE PK Sevenmile Creek DR 1
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Mill Creek Sorghum Branch ANTIOCH P
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HART LN BRICK CHURCH PK I- 65 §¨
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SUMMERLY DR W HILLWOOD DR DARDEN PL
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Stones River STEWARTS FERRY PK reek
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SAUNDERSVILLE RD SHUTE LN ANDREW JA
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Cumberland River RIVER RD RIVER ROA
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Cumberla nd River Browns Creek DR 1
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Metropolitan Nashville - Davidson C
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Metropolitan Nashville Department o
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Reconnaissance Report for Flood Dam
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Extreme Temperatures Chronology of
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2010 Metro Mitigation Plan

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