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National Flood Insurance Program (NFIP) Delaware County, Iowa

National Flood Insurance Program (NFIP) Delaware County, Iowa. Physical Map Revision (PMR) CCO Meeting July 25, 2013. Agenda. Introductions, Purpose, and Overview National Flood Insurance Program (NFIP) Goals of NFIP Specific Streams Studied Flood Mapping Process Flood Insurance

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National Flood Insurance Program (NFIP) Delaware County, Iowa

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  1. National Flood Insurance Program(NFIP) Delaware County, Iowa Physical Map Revision (PMR) CCO Meeting July 25, 2013

  2. Agenda • Introductions, Purpose, and Overview • National Flood Insurance Program (NFIP) • Goals of NFIP • Specific Streams Studied • Flood Mapping Process • Flood Insurance • Questions

  3. Introductions • Iowa DNR – CTP (Cooperating Technical Partner) • Scott Ralston – State Floodplain Mapping Coordinator • Bill Cappuccio – State NFIP Coordinator • Jason Conn – Program Planner (Iowa DNR) • Chris Kahle – Senior GIS Specialist (Iowa DNR) • Shandi Teltschik – FEMA Region VII • Anna Culcasi – Michael Baker Jr., Inc. • Melissa Teidemann – Stanley Consultants

  4. Federal & State Roles • Federal Emergency Management Agency (FEMA) • Administers the NFIP • Produces maps that identify community flood risks • - Region VII in Kansas City, MO • Iowa Department of Natural Resources (IDNR) • State agency responsible for conserving and enhancing Iowa’s natural resources • Cooperating Technical Partner (CTP) with FEMA • CTP Agreement signed August 12, 2009 • Agree to work together to create and maintain accurate, up-to-date flood hazard data for the IDNR • Consult each other to fully integrate each other’s contributions into flood hazard identification efforts

  5. What is the National Flood Insurance Program (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

  6. 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

  7. 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

  8. Detailed Studies for this PMR:Tributary A (Flows into Maquoketa River) & Tributaries 1, 2 & 3 (Flow into Trib. A) • New Hydrology and Hydraulics • New Floodplains Determined & Mapped • Floodplains Mapped on Accurate Topography (LiDAR) - Accurate to 8 Inches (versus 5 Feet for Old Topography)

  9. Scoping Map for Delaware County East Acers Street East Prospect Street IL Central Gulf RR

  10. Rainfall Depths for Delaware County Zone A, Zone AE Shaded Zone X

  11. Increases In Flowrates • Drainage Areas Larger Than Previous Study: • Confluence With Maquoketa River: 5.6 versus 4.4 SM (+27%) • North of Illinois Central Gulf Railroad: 3.7 versus 2.4 SM (+54%) • At East Prospect Street: 3.5 versus 2.2 SM (+59%) • Time of Concentration Smaller Than Previous Study: • Sheet Flow Shorter Distance: 100 versus 300 Feet (-67%) • Land Use More Intense Than Previous Study

  12. Revisions Resulting from Study • 4 DFIRM Panels Updated • Tributary A Revised Zone AE • Tributary 1, 2, & 3 New Zone AE • BFE Changes

  13. LOMCs • All LOMCs were addressed in the preliminary Summary of Map Actions (SOMA) • Four categories • Incorporated • Not Incorporated (validated) • Superseded • To be Redetermined • Local officials need to be sure to review the prelim SOMA for completeness • If you note a LOMC missing from the list, submit the omission with your comments/protests/appeals

  14. LOMCs City of Manchester • 24 LOMAs revalidated • 7 LOMAs superceded – Structure below proposed BFE • 3 LOMAs superceded – Portion of Property below proposed BFE • 1 LOMA superceded – revised topographic information Delaware County, Unincorporated • 29 LOMAs revalidated • No LOMAs superceded

  15. 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* 3 Months 4-6 Months 14+ Months Effective FIRMs Aug. 2014 (Approx.) Entering This Phase * Weather, Complexity, Etc. Timeline is approximate: Will vary per project

  16. Remaining Project Schedule Post-Preliminary Processing Community Review and Final Meeting Publication In Federal Register Appeals Period (Announced in Local Newspaper) Revised panels become effective Appeals Period Resolution & Issue Letter of Final Determination Compliance Period (Map panels adopted by ordinance) 30-45 Days 30-45 Days 6 Months 90 Days 60-90 Days

  17. New Appeal/Comment Process • For studies that a Preliminary FIRM is issued on or after December 1, 2011 • Comments • Referring to base map feature changes • Provide new base map features • Appeals • Addition/modification of SFHA boundaries, SFHA zone designations, and/or regulatory floodways • Provide alternative analyses that incorporate methodologies, assumptions, or data that quantify their effect on BFEs, base flood depths, or other flood hazard information • Appellants should be prepared to perform H&H analyses, plot new Flood Profiles, and delineate revised SFHA zones and should be certified by a Registered Professional Engineer

  18. New Appeal/Comment Process • Appeals must be submitted through the local community • Appeals must be submitted during the 90-day window • Appeals must relate to BFEs, SFHA boundaries, SFHA zone designations, or floodways. Otherwise they are not considered appeals. • Alternative analysis must be provided with an appeal. • All analysis and data submitted must be certified by a Registered Professional Engineer or Licensed Land Surveyor, as appropriate.

  19. New Appeal/Comment Process • Scientific Resolution Panel • Described in Procedure Memorandum # 58 • Available after FEMA and community engaged in a collaborative consultation process for at least 60 days without a mutually-acceptable resolution of an appeal • Independent third party review of the appellant's information

  20. Local Official Responsibilities • Review Preliminary DFIRM panels, FIS Report, and SOMA and submit comments to FEMA • Work with FEMA to resolve any appeal issues • Adopt the new DFIRMs • Update Floodplain Management Ordinances if needed • Encourage residents to take advantage of flood insurance • Provide outreach materials and links to citizens upon request • Make wise land use decisions that support good floodplain management

  21. Flood Insurance • Mandatory flood insurance purchase in 1% (100-yr) floodplain areas (Zone A, Zone AE) • No mandatory flood insurance purchase in 0.2% (500-yr) floodplain areas. (Zone X, shaded Zone X) • Current Scenario • Preferred Risk Policies (PRPs) • Grandfathering of Flood Insurance Rates

  22. Flood Insurance • Mandatory flood insurance purchase in 1% floodplain areas (Zone A, Zone AE) • No mandatory flood insurance purchase in 0.2% floodplain areas. (Zone X, shaded Zone X) • Current Scenario • Preferred Risk Policies (PRPs) • Grandfathering of Flood Insurance Rates

  23. Flood Insurance

  24. Biggert-Waters Flood Insurance Reform and Modernization Act • NFIP to become actuarially sound • Phase-out subsidies for pre-FIRM structures over 5-year period • Authorized rate increases of 20% each year until reach full risk rate • Rate increases affecting non-primary residences began on January 1, 2013

  25. Floodplain Development • Permit required for development located in mapped SFHA • Lowest floor (including basement) of any new or substantially improved structure must be located 1 ft above BFE • In “floodway” portion of flood plain: • Prohibit development that would result in additional obstruction of flood flows and increase in 100-year flood stage • Letters of Map Change (e.g., LOMA)

  26. Questions ? Contact Information Jason Conn Iowa Department of Natural Resources Email: Jason.Conn@dnr.iowa.gov Phone: 515-281-4333 Bill Cappuccio Iowa Department of Natural Resources Email: Bill.Cappuccio@dnr.iowa.gov Phone: 515-281-8942

  27. Flood of Oct. 7, 2007 Looking northwest on Stiles street into Baum Park

  28. Looking north on west side of Stiles street into Baum Park

  29. Looking northwest on Stiles street into Baum Park

  30. Looking north on Stiles Street; driveway on left is to shelter in Baum Park just north of waterway north side of 304 Stiles Street

  31. Looking northeast from Stiles Street; speed limit sign near 54” RCP inlet under Stiles Street, north side of 304 Stiles Street

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