FLOODPLAIN MANAGEMENT EFFORTS IN THE SANTA...
Transcript of FLOODPLAIN MANAGEMENT EFFORTS IN THE SANTA...
FLOODPLAIN MANAGEMENT EFFORTS IN THE SANTA CLARA
RIVER WATERSHED
•DIGITAL FLOOD INSURANCE MAP (DFIRM) UPDATES
•LEVEE CERTIFICATION
•FEMA FLOOD INSURANCE STUDY (Santa Clara River)
Present to: Santa Clara RiverPresent to: Santa Clara RiverWatershed Council of Ventura CountyWatershed Council of Ventura County
July 2008July 2008
DIGITAL FLOOD INSURANCE MAP (DFIRM) UPDATES
Why Update Flood Maps?Why Update Flood Maps?
Federal Requirements Federal Requirements -- National Flood Insurance National Flood Insurance Program:Program:–– National Flood Insurance Act of 1968National Flood Insurance Act of 1968–– Flood Disaster Protection Act of 1973Flood Disaster Protection Act of 1973–– Flood Insurance Reform Act of 1994Flood Insurance Reform Act of 1994
Current accurate flood maps are critical to:Current accurate flood maps are critical to:–– Reduce potential loss of life & property through sound floodplaiReduce potential loss of life & property through sound floodplain n
managementmanagement–– Reduce NFIP & disaster costsReduce NFIP & disaster costs–– Protect natural & beneficial values of floodplainsProtect natural & beneficial values of floodplains
Accurate and up to date flood maps are Accurate and up to date flood maps are vitalvital for the for the successful implementation of successful implementation of allall floodplain management floodplain management strategies.strategies.
Flood Mapping Inventory Ages:Flood Mapping Inventory Ages:Ventura County vs. NationwideVentura County vs. Nationwide
0
10
20
30
40
50
60
70
80
90
100
Age of FIRMs
Perc
enta
ge
Nationwide 18 11 15 56
Ventura County 0 0 13 87
Less than 5 years From 5 to 10 years From 10 to 15 years More than 15 years
Source of Data: Nationwide data is from MapIX website. Ventura County data is from manual tabulation of FIRMs.
Ventura County Revised Ventura County Revised Preliminary DFIRMPreliminary DFIRM
Preliminary DFIRM: Released in Sept. Preliminary DFIRM: Released in Sept. 2005, incorporating Calleguas Creek 2005, incorporating Calleguas Creek Watershed FIS .Watershed FIS .Revised Preliminary DFIRM: Released Revised Preliminary DFIRM: Released May 30, 2008 incorporated appeals May 30, 2008 incorporated appeals from local communities and PAL from local communities and PAL processprocess
DFIRM Adoption Timeline:DFIRM Adoption Timeline:F
irst
Rel
ease
Sep
tem
ber
200
5
Appeals,PAL Process
Rev
ised
Pre
limin
ary
May
30,
200
8
Com
men
t P
erio
d
Exp
ires
Oct
ober
30,
200
8
Let
ter
of F
inal
Det
erm
inat
ion
D
ecem
ber
30,
200
8
Eff
ecti
ve D
ate
Jun
e 30
, 200
9
Community Review & Comment
6 Month Period for LocalStakeholders to Amend Ordinances
Stakeholder Input and Comment
WhatWhat’’s Next?s Next?
Review and determination of key Review and determination of key levees compliance with FEMA Levee levees compliance with FEMA Levee AccreditationAccreditationProvide comments to FEMA by October Provide comments to FEMA by October 30, 200830, 2008
Levee CertificationLevee Certification
FEMA Levee Certification FEMA Levee Certification Requirements:Requirements:
FEMA has long been concerned with leveeFEMA has long been concerned with leveecertificationscertificationsInitiated Levee Policy Committee to developInitiated Levee Policy Committee to develop
recommendations to NFIP recommendations to NFIP beforebefore Katrina in Katrina in 20052005““AccreditationAccreditation”” vs. vs. ““CertificationCertification””FEMA FEMA does notdoes not certify levees. Levee certify levees. Levee owners do.owners do.FEMA FEMA accreditsaccredits certified levees on certified levees on effective effective DFIRMsDFIRMs..
Code of Federal Regulations Code of Federal Regulations (44 CFR 65.10)(44 CFR 65.10)
For the purpose of NFIP maps, FEMA will For the purpose of NFIP maps, FEMA will onlyonlyrecognize levee systems that recognize levee systems that meetmeet and and continue to meetcontinue to meetdesign, operational and maintenance criteria of the design, operational and maintenance criteria of the Code of Federal Regulations, Title 44, Section 65.10 Code of Federal Regulations, Title 44, Section 65.10 ((44 44 CFR 65.10CFR 65.10), ), which was adopted on August 25, 1986which was adopted on August 25, 1986
Certification Criteria broken Certification Criteria broken down into 6 down into 6 keykey components:components:–– Operations and Maintenance PlanOperations and Maintenance Plan–– FreeboardFreeboard–– ClosuresClosures–– Embankment and foundation Embankment and foundation
stabilitystability–– Interior DrainageInterior Drainage–– Other Design CriteriaOther Design Criteria
PM 34 PM 34 -- Levee Certification PathsLevee Certification Paths
Map of District Levee InventoryMap of District Levee Inventory
District District Levee Levee System System Inventory Inventory List:List:26 Levees26 Levees68 Miles68 Miles
Provisionally Provisionally Accredited Accredited Levees (PAL)Levees (PAL)
Out of 14 leveesOut of 14 leveesrequested, 6 requested, 6 were were PALedPALed::Non levees in Non levees in Santa Clara Santa Clara River watershed River watershed were were PALedPALed
Levee Certification Timeline:Levee Certification Timeline:Be
gin
Leve
e Ce
rtifi
catio
nSe
ptem
ber
2006
Subm
itted
Req
uest
for
14
PAL
Lev
ees
Nov
. 27
, 20
07
FEM
A Ap
prov
ed 6
PAL
sM
ay 2
8, 2
008
Prog
ress
Rep
ort
to F
EMA
Nov
. 30
, 20
08
Subm
it Le
vee
Cert
ifica
tioPa
ckag
e to
FEM
AN
ov. 30
, 20
09
PAL Efforts,Consultant ServiceSOW
Consultant Selection,BOS Approval
Prepare LeveeCertification Package
Levee InventoryEfforts
WhatWhat’’s Next?s Next?
Select ConsultantsSelect ConsultantsBOS ApprovalBOS ApprovalPrepare Levee Certification PackagesPrepare Levee Certification Packages
Santa Clara RiverSanta Clara River
FEMA Flood Insurance StudyFEMA Flood Insurance Study
FEMA Flood Insurance FEMA Flood Insurance StudyStudy
Initiated in 2006 under FEMA CTP Initiated in 2006 under FEMA CTP ProgramProgramAll study areas were determined in All study areas were determined in consultation with local communitiesconsultation with local communitiesStudy Reaches: Study Reaches: –– Santa Clara RiverSanta Clara River–– 9 of its tributaries 9 of its tributaries –– totaling 57.11 milestotaling 57.11 miles
Santa Clara River Flood Insurance Study:Santa Clara River Flood Insurance Study:
Study ReachesStudy Reaches
Name Reach Length
Mile
Santa Clara River 38.33
Orcutt Canyon 1.07
Sespe Creek 5.99
Grimes Canyon Wash 1.93
Pole Creek 2.02
Basolo Ditch 1.00
Hopper Canyon 2.71
Piru Creek 1.57
El Rio Drain 1.19
Patterson Drain 1.30
Total Length 57.11
Preliminary Comments on Technical Preliminary Comments on Technical Support Data Notebook (TSDN)Support Data Notebook (TSDN)
FEMA released the TSDN on May 8, FEMA released the TSDN on May 8, 20082008Preliminary District and Community Preliminary District and Community review comments sent to FEMA on review comments sent to FEMA on June 30, 2008June 30, 2008Expect COE to send independent Expect COE to send independent review comments soon.review comments soon.
SCR Flood Insurance Study SCR Flood Insurance Study Timeline:Timeline:
Rel
ease
of
TSD
NM
ay 8
, 200
8
Publ
icat
ion
of N
ews
Rel
ease
Janu
ary
2009
Inco
rpor
ate
into
Rev
ised
Prel
imin
ary
DFI
RM
Dec
embe
r 20
08
Tech
nica
l Rev
iew
Per
iod
Expi
res
Oct
. 30,
200
8
90 D
ay A
ppea
l Per
iod
Begi
nsFe
brua
ry 2
009
Appe
al P
erio
d Ex
pire
sM
ay 2
009
Lett
er o
f Fi
nal
Det
erm
inat
ion
July
200
9
Effe
ctiv
e D
ate
Janu
ary
2010
Stakeholder Input and Comment Appeal/ProtestPeriod
WhatWhat’’s Next?s Next?
Local communities/stakeholders review the Local communities/stakeholders review the FIS, speak to FEMA with one voiceFIS, speak to FEMA with one voiceAgree upon the MOU,Agree upon the MOU,Consultant Service SOWConsultant Service SOWConsultant review commentsConsultant review commentsby end of Oct. 2008by end of Oct. 2008Public outreach:Public outreach:–– What if levees are not able to be certified?What if levees are not able to be certified?–– What the impacts will be to communities?What the impacts will be to communities?
WhatWhat’’s Next? s Next? (Continue)(Continue)
The District will place potential improvement The District will place potential improvement projects into the ranking system of the projects into the ranking system of the Integrated Watershed Protection Plan Integrated Watershed Protection Plan (IWPP) for selection of Capital Improvement (IWPP) for selection of Capital Improvement Plan (CIP)Plan (CIP)The District will look for grant from State The District will look for grant from State and Federal sourcesand Federal sourcesThe District will look for participation of local The District will look for participation of local communitiescommunities
WhatWhat’’s Next? s Next? (Continue)(Continue)
Identification of levee improvement Identification of levee improvement projects will be included in the projects will be included in the ongoing SCR Feasibility Studyongoing SCR Feasibility Study
Questions?Questions?