SECTION 4: RISK ASSESSMENT
The NFIP utilizes the 100-year flood as a basis for floodplain management. The Flood Insurance Study (FIS) defines the probability of flooding as flood events of a magnitude which are expected to be equaled or exceeded once on the average during any 100-year period (recurrence intervals). Or considered another way, properties within a 100-year flood zone have a one percent probability of being equaled or exceeded during any given year. Mortgage lenders require that owners of properties with federally- backed mortgages located within SFHAs purchase and maintain flood insurance policies on their properties. Consequently, newer and recently purchased properties in the community are typically insured against flooding. Impact: 3 – Critical Spatial Extent: 2 – Small Historical Occurrences Table 4.34 details the historical occurrences of flooding identified from 2007 through 2018 by NCEI Storm Events database. It should be noted that only those historical occurrences listed in the NCEI database are shown here and that other, unrecorded or unreported events may have occurred within the planning area during this timeframe. Table 4.34 – NCEI Records of Flooding, 2007-2018
Reported Property Damage
Reported Property Damage (PV)
Reported Crop Damage
Deaths/ Injuries
Reported Crop Damage (PV)
Location
Date
Type
Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh Raleigh
04/27/08 Flash Flood 04/27/08 Flash Flood 08/30/08 Flash Flood 09/06/08 Flash Flood 05/05/09 Flash Flood 05/05/09 Flash Flood 06/16/09 Flash Flood 06/16/09 Flash Flood 12/02/09 Flash Flood 12/02/09 Flash Flood 12/02/09 Flash Flood 01/25/10 Flash Flood 01/25/10 Flash Flood 08/05/10 Flash Flood 08/24/10 Flash Flood 09/30/10 Flash Flood 09/30/10 Flash Flood 08/06/11 Flash Flood 08/06/11 Flash Flood 09/21/11 Flash Flood 07/30/12 Flash Flood 09/06/12 Flash Flood 09/08/12 Flash Flood 09/08/12 Flash Flood 09/18/12 Flash Flood 06/07/13 Flash Flood
0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
$0 $0 $0
$0 $0 $0
$0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0
$0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0
$100,000
$69,731
$0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0
$0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0
$5,000
$3,871
$0 $0 $0 $0 $0 $0
$0 $0 $0 $0 $0 $0
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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