Ventura County Preliminary Flood Maps FEMA Region IX May 30-31, - - PowerPoint PPT Presentation

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Ventura County Preliminary Flood Maps FEMA Region IX May 30-31, - - PowerPoint PPT Presentation

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Ventura County Preliminary Flood Maps FEMA Region IX May 30-31, 2017 National Flood Insurance Program U.S. Congress established the NFIP with the passage of the National Flood Insurance Act of 1968: FEMA produces Flood Insurance Rate Maps

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Ventura County Preliminary Flood Maps

FEMA Region IX May 30-31, 2017

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National Flood Insurance Program

U.S. Congress established the NFIP with the passage of the National Flood Insurance Act of 1968:

1.

FEMA produces Flood Insurance Rate Maps

2.

Communities adopt and enforce a floodplain management ordinance to reduce flood risk to new and existing development in high risk flood zones

3.

Federal government makes flood insurance available to property owners in participating communities

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What is a FEMA Flood Insurance Rate Map (FIRM)?

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Open Pacific Coast Study

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Re-study flood risk along the open coast and inland bays of all California coastal counties Re-map the elevation and inland extent of wave-induced coastal flooding www.r9coastal.org

California Coastal Analysis and Mapping Project

Two Companion Large-Scale Efforts:

  • Open Pacific Coast (OPC) Study
  • San Francisco Bay Area Coastal (BAC) Study
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Open Pacific Coast Study

Del Norte Humboldt Mendocino Sonoma Marin San Francisco San Mateo Santa Cruz Monterey San Luis Obispo Santa Barbara Ventura Los Angeles Orange San Diego

Phase 1

Northern & Central California Coast

Phase 2

Southern California Coast

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Ventura County Flood Mapping Timeline

Kick-Off Meeting Letter of Final Determination (LFD) Appeal Period June 9 – Sept. 6, 2017 Flood Risk Review Meeting Public Meeting Preliminary FIRM Meeting

Data Acquisition Coastal Analysis Floodplain Mapping

  • Prelim. Map

Production Post-Preliminary Process Implement Outreach Plan Work Map Comment Tool Provide Study Data Develop Community Outreach Plan

Outreach Timeline Map Production Timeline Effective Maps

December 8, 2011 October 26, 2015 October 19, 2016

July 2018

  • Jan. 2018

TODAY

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Coastal Study Process

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Coastal Study Infographic

  • FEMA’s coastal study

summary describes key steps in the process

  • Available online at:

https://www.fema.gov/media- library/assets/documents/1161 60

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Wave Runup and Overtopping

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Wave Overtopping

  • During severe coastal storm events along the Pacific coast, high

waves and wave runup can overtop coastal barriers including bluffs, dunes, seawalls, revetments, and beach berms.

  • https://www.youtube.com/watch?v=0SczjJCCpRI

Photo: Lesley Ewing (from FEMA Coastal Construction Manual) Photo: Justin Vandever, BakerAECOM

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Flood Hazard Mapping

  • Zone VE: Inundated by 1-percent annual chance (100-

year) flood with additional wave hazards:

  • Runup
  • Overtopping
  • Zone AE: Inundated by 1-percent annual chance flood
  • Zone X (shaded): Inundated by 0.2-percent annual

chance (500-year) flood Zones VE and AE carry mandatory flood insurance purchase requirements

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Flood Hazard Mapping

Point Mugu, Transect 68

Effective FIRM: Zone D 2016 OPC Preliminary FIRM: Zones VE 19

VE 19 AE 8 Zone D 68 68

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Changes Since Last FIRM

  • www.r9coastal.org
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Floodplain Management

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Floodplain Management and Insurance – LOMA Scenario 1 (OAS)

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Floodplain Management and Insurance – LOMA Scenario 2

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Floodplain Management Scenario #1: X to VE

  • Historic structure exemption
  • Substantial Improvement and Substantial Damage
  • Existing Building - Tenant improvements that are <50% of

market value are allowed

  • Existing Building - Tenant improvements that are >50% of

market value can be permitted provided they meet all Zone VE regulations except for 60.3 (e) (3).

  • New construction is NOT allowed seaward of mean high

tide.

  • In VE Zones, new construction must have the elevation
  • f the lowest horizontal structural member at or above

the Base Flood Elevation (BFE).

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Floodplain Management Scenario #2: X to AE

  • Standards to ensure new construction and substantial

improvement will be protected from the base flood

  • Elevate structures
  • Floodproof (nonresidential structures only)
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Next Steps

  • FEMA Actions
  • Publish notice of formal appeal period in local newspapers
  • Initiate formal appeal period (June 9 – Sept. 6, 2017)
  • Community Actions
  • Review preliminary FIRM panels
  • Understand FEMA’s comment/appeal process:

https://www.fema.gov/media-library/assets/documents/17930

  • Submit comments to local Floodplain Manager
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Flood Insurance Information

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How the NFIP Works

FEMA agrees to make flood insurance available within a community when that community agrees to adopt and enforce floodplain management regulations.

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Maximum Flood Insurance Available

Occupancy Building Contents Residential 250,000 100,000 Non-Residential (Commercial) 500,000 500,000

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How Do I Purchase Flood Insurance?

Contact Your Local Insurance Agent

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When is Flood Insurance Required?

  • Buildings in

A and V zones with

  • Federally backed

loans

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How Much Flood Insurance is Required?

Lender Decision:

  • Outstanding loan

balance

  • Maximum available
  • Replacement cost or

actual cash value

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Cost of Flood Insurance

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Possible Impacts of New Map

  • 1. Newly mapped into a

high risk area

  • 2. Removed from the

high risk area

  • 3. Change in type of

high risk area

  • 4. Change in how high

water gets

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Contact Your Insurance Agent Early to Discuss Options

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Where to Get More Information

http://www.fema.gov/nfip

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