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National Flood Insurance Program (NFIP) Jones County, Iowa . Flood Study Review (FSR) Meeting for Physical Map Revision (PMR) August 20, 2013. Meeting Agenda. Introductions NFIP – Goals Risk MAP Program Flood Mapping Process Physical Map Revision ( PMR)
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National Flood Insurance Program(NFIP) Jones County, Iowa Flood Study Review (FSR) Meeting for Physical Map Revision (PMR) August 20, 2013
Meeting Agenda • Introductions • NFIP – Goals • Risk MAP Program • Flood Mapping Process • Physical Map Revision (PMR) • Iowa Floodplain Mapping Program • Questions & Breakout Sessions
Welcome & Introductions • FEMA – Region VII • Bob Franke – Regional Project Officer • Richard Leonard – CCO (Consultation Coordination Officer) • Iowa DNR – CTP (Cooperating Technical Partner) • Scott Ralston, P.E., CFM – State Floodplain Mapping Coordinator • Christopher Kahle – Senior GIS Specialist • AECOM Technical Services, Inc. • Andy Bonner, P.E., CFM – Project Manager
What is the NFIP ? • The NFIP is a federal program: • Established with the passage of the National Flood Insurance Act of 1968 • Enables property owners in participating communities to purchase • insurance as protection against flood losses • Participation is voluntary and based on an AGREEMENT between local • communities and the Federal Government • AGREEMENT: The Federal Government makes flood insurance available within the community as a financial protection against flood losses, and the community adopts and enforces a floodplain management ordinance to reduce flood risk to new construction in floodplains
NFIP Goals • Reduce the loss of life and property caused by flooding • Reduce rising disaster relief costs caused by flooding • Short range goal is to provide flood insurance • Long range goal is to encourage wise use in developments • in flood hazard areas
Accomplishing NFIP Goals • Publish flood maps – identify risk • Educate the public on their own risk • Provide federally-backed flood insurance coverage • Encourage development away from flood-prone areas
Risk MAP • Mapping, Assessment and Planning • Goal: Reduce the risk to life and property • Vision: Deliver quality products that increase awareness of risk and encourage action Risk Reduction
Flood Mapping Process Project Timeline Flood Mapping Project Phases Technical Review Preliminary FIRMs/ Appeals Period Post Preliminary Processing Project Cooridnation & Scoping Engineering FIRM Production Spring 2011 Varies* 2 Months 4-6 Months 14+ Months Entering This Phase Prelim FIRM Panels Nov. 2013 Effective FIRM Panels June 2015 * Weather, Complexity, Etc. Timeline is approximate: Will vary per project
Physical Map Revision (PMR) • PMR is a revision made by FEMA to a Flood Insurance Rate Map (FIRM) affecting multiple panels • CTP Grant Opportunity (Leveraged Data; 25% Local Match) • FEMA, Iowa DNR and local officials met and discussed needs in three (3) counties in the state for FY 2012 CTP Funding • Needs were identified, prioritized and costs were estimated
Tasks of this PMR • Leveraged Data (ACOE H & H) • Survey Data – channel and bridge surveys • Hydrology – updated discharges for Maquoketa River • Hydraulics – updated hydraulic models for Maquoketa River and Kitty Creek • Data reviewed for compliance with FEMA Guidelines & Standards and updated accordingly by AECOM • Floodplains/Floodways – Topographically correct floodplains and optimized floodways were developed.
Tasks of this PMR - continued • Flood Study Review Meeting (FSR) – August 20, 2013 • FIRM Database & FIS – Update the existing countywide database and FIS to include PMR data (Effective FIRMs are July 16, 2008) • Panel Production – Produce new/updated panels • and update the Flood Insurance Study (FIS) • Produce Preliminary Map Products – Distribute • panels to communities for review (approximate date: • November, 2013) • CCO Meeting – One month after Distribution of • panels
Tasks of this PMR - continued • Federal Register Publication must post the limits of change in the Federal Register and two local newspapers. • Appeals Period – 90 days • Appeals Resolution – 30-45 days • Letter of Final Determination – Marks the date that begins the map adoption and compliance period (6 months to Effective date) • Effective Maps – Estimated June 2015 • Ordinance needs to be adopted before the Effective date.
Jones County, IAPhysical Map Revision • Leverage ACOE – Rock Island District hydrologic & hydraulic models • Revised studies: • 1.5 miles Kitty Creek • 3.4 miles Maquoketa River • 5 updated FIRM Panels
What’s New: Topographic Data • Effective Study used 1974 topographic maps with a 2-ft contour interval and a scale of 1:4800 • Revised Study used 1m and 3m statewide DEM, equivalent to a 2-feet contour interval and developed from 2008 LiDAR
What’s New: Survey Data • Channel cross-section data was collected by USACE in 2010 • Bridge data was furnished by the State of Iowa Department of Transportation and augmented by field inspections where necessary
Hydrology: Effective vs. New Discharges Why discharges increased: • Effective hydrology from mid 1970s • Revised gage analyses up to water year 2012 to interpolate discharges near Monticello, IA • Major flood events in 2002 & 2010 taken into account during analyses
Hydraulics: Effective vs. New BFEs • Maquoketa River (1% annual chance discharges increased from 34,500 cfs to ~ 37,000 cfs) • Kitty Creek (no discharge changes)
Iowa Floodplain Mapping Program • Post 2008 Disasters $15M CDBG Grant • Established the Iowa Flood Center (IFC) • Additional resources secured • Business Plan
Contact Information Scott Ralston, P.E., CFM Floodplain Mapping Coordinator Iowa Department of Natural Resources Email: Scott.Ralston@dnr.iowa.gov Phone: 515-281-8121 Andy Bonner, P.E., CFM Project Manager AECOM Technical Services, Inc. Email: andrew.bonner@aecom.com Phone: 816-410-6371