Textbook Notes NFIP Flashcards
(190 cards)
3 major categories of floods
riverine, coastal, shallow
most common type of flooding
overbank flooding
downstream channels receive excess water or channel is blocked. then, water overloads and flows out
what causes most coastal flooding
hurricanes and severe storms
what is a tsunami
caused by underwater earthquake or volcano
3 types of hydrodynamic forces
frontal
drag
eddies or negative pressure (suction to downstream side)
1960 and earlier- types of projects
structural flood control projects primarily
when was NFIP created
1968
establish insurance
distribute responsibility
set standard for development
begin floodplain mapping
when was national flood insurance act created
1968
unified national program for floodplain management
floodplain management strategies
1 - modify human susceptibility to flood damage
2 - modify impact of flooding
3 - modify flooding itself
4 - preserve and restore natural resources
when was the Flood Disaster Protection Act passed
1973
prohibit most building assistance in floodplains of non participating communities
how much total USA land area is floodplain
7%
which department is FEMA administered by
Department of homeland security
how fast is a high velocity flood
5 ft/s or greater
most important amendment to FEMA
1994 - National Flood Insurance Reform Act
CRS establish, increase max coverage, start grant program
when is federal funding available
in communities that agree to regulate development in mapped floodplains
NFIP based on agreement between Federal Gov and Communities
3 purposes of FEMA maps and data
basis for regulating new flood-prone construction
rating insurance policies
determine when flood insurance must be purchased as a condition of a loan
what are the 2 types of FEMA maps
FHBM (approximate)
FIRM (based on FIS, more accurate)
3 things can occur if community does not follow NFIP
new buildings subject to flood damage
insurance is very expensive
FEMA can impose sanctions
Community Role in NFIP
enact and implement floodplain regulations
issue/deny floodplain development permits
inspect development for compliance with ordinance
maintain record of floodplain development
assist in revision of floodplain maps
inform residents of flood hazardsn
state role in the NFIP
ensure communities have legal authority to enforce regulation
establish minimum regulations consistent with NFIP
provide technical assistance to local gov
coordinate with various state agencies that affect the NFIP
can also enforce regulations for state owned properties. often done through governors executive order. may have own regulations
NFIP are on what ratio of cost share
under CAP - NFIP funds are available 75/25 %
to help state provide technical assistance to communities
federal role in NFIP
FEMA within department of homeland security administers NFIP through regional offices and mitigation division
assists state NFIP coordinating criteria
assess community compliance
advise local officials
review and adopt new maps
approve community regulations
administers the insurance portion. Sets insurance rates, establishes coverages, monitors claims, markets flood insurance
how to join the NFIP
- community adopt letter of intent to participate with FEMA
- submit and adopt a floodplain management ordinance that meets or exceeds NFIP
then, communities receive a FIRM. They get 6 months to adopt the ordinance,
what happens if a community does not comply
CAV or CAC inspects.
FEMA has 3 recourses: reclassification under CRS, probation, suspension