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CRS Audit. A Study on Tybee Island’s CRS and Open Space Program. National Flood Insurance Program Community Rating System August 28, 2014. Background. CRS Recertification & Cycle Visit April 2014 New CRS Manual 2013 Changes to Activities / Credits

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CRS Audit

A Study on Tybee Island’s CRS and Open Space Program

National Flood Insurance Program Community Rating System

August 28, 2014


Background

  • CRS Recertification & Cycle Visit April 2014

  • New CRS Manual 2013

  • Changes to Activities / Credits

  • Biggert Waters Act/Homeowner Flood Insurance Affordability Act of 2014


Tybee Island – CRS Program Audit

Categories of Floodplain Management Activities:

  • Public Information

  • Mapping and Regulations

  • Flood Damage Reduction

  • Warning and Response


Open Space Preservation

  • Open Space Preservation (OSP)

  • Deed Restrictions (DR)

  • Natural Functions Open Space (NFSP)

  • Special Flood-Related Hazard Open Space (SHOS)

  • Open Space Incentives (OSI)

  • Low-Density Zoning (LZ)

  • Natural Shoreline Protection (NSP)

1450 Points

50 Points

350 Points

50 Points

250 Points

600 Points

120 Points


Open Space Preservation

  • Open Space Preservation (OSP)

  • Deed Restrictions (DR)

  • Natural Functions Open Space (NFSP)

  • Special Flood-Related Hazard Open Space (SHOS)

Credit specific to properties

  • Open Space Incentives (OSI)

  • Low-Density Zoning (LZ)

  • Natural Shoreline Protection (NSP)

Credits local regulations


Total Site

6 Acres


Total Site

6 Acres

Area in SFHA

3 Acres


Total Site

6 Acres

Area in SFHA

3 Acres

Impervious Area in SFHA

0.75 Acres

OSP Eligible

2.25 Acres


Total Site

6 Acres

Area in SFHA

3 Acres

Impervious Area in SFHA

0.75 Acres

OSP Eligible

2.25 Acres

Total acreage in SFHA = 100

Acreage of Open Space = 2.25

Ratio of Open Space = 0.0225

(2.25 / 100)

Open Space points for this Site = 32.6

(0.0225 x 1450)


Open Space Preservation

  • Beach

  • Dunes

  • Parks

  • Coastal Marshlands

  • Conservation Easements

  • Other

  • Total Acreage of the City

    • 2,046 Acres

  • Total Acreage of Special Flood Hazard Area

    • 1,768 (86% of City)

    • AE Zone, 1,200 Acres (59%)

    • VE Zone, 568 Acres (28%)

aOSP / aSFHA = rOSP

rOSP * 1450 = Open Space Points


Open Space Preservation (OSP)

OSP = 710


Open Space Preservation

Total Site = 11.3 acres

OSP Eligible = 7.2 acres


Deed Restrictions (DR)

Deed Restrictions

50 Points

aDR / aSFHA = rDR

rDR * 50 = Deed Restriction Points

DR = 24


Coastal Marshlands Protection Act

  • General Assembly declares that coastal marshlands of GA are a vital natural resource system

  • Marshlands provide the following

    • Habitat

    • Nutrients

    • Buffers against flooding and erosion

    • Disseminate pollutants

    • Natural recreational resource

    • Economic resource


Natural Functioning Open Space (NFOS)

Natural Functioning Open Space

350 Points

aNFOS / aSFHA = rNFOS

rNFOS * 350 = Natural Functioning Open Space Points

NFOS1

82 Points


Ongoing Coastal Initiatives that Benefit NFIP and CRS Programs

National Flood Insurance Program Community Rating System

August 28, 2014


Coastal Stormwater Supplement (CSS)

CSS Elements

CRS Activity 450 Stormwater Regulation (Max 755)

  • Ordinance

  • Green Infrastructure/Low Impact Development Focus

  • Stormwater Runoff Volume/WQ Control

  • Drainage structure Maintenance Agreements

  • Required for NPDES MS4 communities

  • Water Course Protection?

http://epd.georgia.gov/georgia-epd-coastal-stormwater-supplement-stormwater-management-manual


County Hazard Mitigation Planning

Coastal Planning Initiatives

Activity 510 - Floodplain Management

  • Coastal Hazard Plans due for an update 2014 – 2016.

  • Georgia Coastal Hazards Community of Practice

  • Chatham County Natural Resources Protection Commission

  • CRC Coastal Hazard Mitigation Plan

www.CRSresources.org/500


Coastal Flood Map Project

Activity 410 Floodplain Mapping

  • Inland Phase Completed

  • Coastal Phase in progress, to be Completed 2015/2106

    • Partners: FEMA, GA DNR, NOAA, CRC, Local Government

  • Local Contributions of resources/Local Studies


ONline Mapping Resources

Online Services

CRS Activity Points Available

  • The Georgia Coastal Hazards Portal

    • http://gchp.skio.usg.edu/

  • US Fish and Wildlife Geospatial Services

    • http://www.fws.gov/gis/data/national/


Drainage system Operation & Maintenance

Coastal/Statewide Programs

CRS Activities

  • Special Option local Sales Tax

  • NPDES Permits

    • MS4 Phase I & II

    • Watershed Protection plans


Other Initiatives?What’s Happening in your Community?


Questions?

Ed DiTommaso, AICP GISP

(c) (912) 596-3407

[email protected]

Courtney Reich, AICP

(c) (912) 656-1316

[email protected]

Ecological Planning Group, LLC

7 East Congress Street, Suite 801

Savannah, GA 31401

www.ecologicalplanning.net


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