dhec living shorelines working group crsactivity420crs

DHEC Living Shorelines Working GroupCRS Activity 420 Open Space PreservationCRS Activity 420 - Open Space Preservation

December 7 2017

© Amec Foster Wheeler 2017.

December 7, 2017

AgendaAgenda

► Background on Community Rating System (CRS) Program

► Interface of CRS and Living Shorelines

► Folly Beach, SC CRS Open Space

► Questions► Questions

© Amec Foster Wheeler 2017.2

Goals of the CRS

1. Reduce and avoid flood damage to insured buildings

Goals of the CRS

damage to insured buildings2. Strengthen and support the

insurance aspects of the NFIP3 Foster comprehensive3. Foster comprehensive

floodplain management


CRS Coordinator’s ManualCRS Coordinator s Manual


4 Series of Activities

300 Public Information400 Mapping and Regulations

4 Series of Activities

400 Mapping and Regulations500 Flood Damage Reduction600 Warning and Response


4 Series of Activities4 Series of Activities

19 Activities19 Activities

94 Elements of Credit


Benefits to a CommunityBenefits to a Community

Benefits Money stays in the community Insurance savings offset costs Better organized programs Technical assistance Public information builds constituency Public information builds constituency Incentive to keep implementing Community pride

$100Taxes

$150CRS


Interface of CRS and Living ShorelinesInterface of CRS and Living Shorelines

► Activity 420 Open Space Preservation► OSP Credit► OSP Credit► NFOS Credit► NSP Credit

► OSI (Open Space Incentives)► OSI (Open Space Incentives)

► Activity 430 Higher Regulatory StandardsCER C dit (C t l E i H d R l ti )► CER Credit (Coastal Erosion-Hazard Regulations)

► OHS Credit (Other Higher Standards)

► Activity 510 – Floodplain Management Planning► NFP Credit – Natural Floodplain Functions Plan

► Folly Beach, SC – Open Space Preservation


420 – Open Space Preservation M l P 420 3420 Open Space Preservation

Objectives:(1) P t fl d d b k i fl d l d

Manual Page 420-3

(1) Prevent flood damage by keeping floodprone lands free of development, and

(2) Protect and enhance the natural functions of floodplains.(2) Protect and enhance the natural functions of floodplains.

9 © Amec Foster Wheeler 2017.


422.a Open space preservation (OSP)C dit it i

Manual Page 420-4

Credit criteria (1) Parcel must be in the regulatory floodplain

SFHA + areas regulated in the X ZoneSFHA + areas regulated in the X Zone



(2) Parcel must be “open space”

Manual Page 420-4

( ) p p“Open space” = no buildings, storage, or filling



“Open space” does not include(a) Parcels not counted in the impact adjustment map

Manual Page 420-4

(a) Parcels not counted in the impact adjustment map (open bodies of water, federal land, etc..)



“Open space” does not include(b) Areas with impervious surfaces

Manual Page 420-4

(b) Areas with impervious surfaces



“Open space” does not include(c) Areas with buildings on them

Manual Page 420-4

(c) Areas with buildings on them



“Open space” does not include(d) Where fill storage or other encroachments are allowed

Manual Page 420-5

(d) Where fill, storage, or other encroachments are allowed



“Open space” does not include(e) Streets railroad levee linear rights of way etc

Manual Page 420-5

(e) Streets, railroad, levee, linear rights of way, etc..




Manual Page 420-5

(e) Streets, railroad, levee, linear rights of way, etc..Including ditch or channel rights of way




Manual Page 420-5

(e) Streets, railroad, levee, linear rights of way, etc..Exception: waterside greenways



“Open space” does not include(f) Land not intended to be preserved as open space

Manual Page 420-6

(f) Land not intended to be preserved as open space



(3) Parcel must be preserved as “open space”Manual Page 420-6

(a) Publicly owned land, city park, beach, school field, etc.




(b) Private wildlife or nature preserve, church camp, scout camp, hunting club, non-profit golf course




(c) Prohibitory development regulations (no buildings, filling or storage)

Zoning DistrictsCommercialCommercialSingle Family Res.Conservation


420 – Open Space Preservation420 Open Space Preservation


420 – Open Space PreservationM l P 420 9Manual Page 420-9

Mark the areasCalculate acreageCalculate acreageAdd up to equal aOSP

M l P 420 14420 – Open Space Preservation

422.c Natural functions open space (NFOS)

Manual Page 420-14

p p ( )Open space in its natural state provides more benefits:• Flood storageFlood storage• Reduced sedimentation• Water qualityq y• Aquifer recharge• Richer soils• Biodiversity• Habitat



NFOS1 Parcel in its natural state

Manual Page 420-15

Examples:• Areas not built on• Restored to natural state• Designated by recognized programN t dit dNot credited:• Scenic designation• Recreational areasec eat o a a eas• Clear cutting allowed• Dune/beach nourishment




Manual Page 420-16

Designated in Plan:• Areas not built on• Restored to natural state• Designated by recognized program

P l dit d i NFOS1• Parcels credited in NFOS1Types of Plans• Habitat Protectionsab tat otect o s• Habitat Conservation• Habitat Restoration

Fi h & Wildlif St t A d• Fish & Wildlife or State Approved




Manual Page 420-16

Designated as Critical Habitat:• Areas not built on• Restored to natural state• Designated by recognized program

P l dit d i NFOS1• Parcels credited in NFOS1• Threatened or endangered speciesTypes of Plansyp• Habitat Protections• Habitat Conservation

H bit t R t ti• Habitat Restoration• Fish & Wildlife or State Approved

28

M l P 420 30/31420 – Open Space Preservation

NSP Natural Shoreline

Manual Page 420-30/31

ProtectionNatural channels and shorelines:• Protect natural floodplain functions• Create places for aquatic and

riparian habitat• Allow channels & shorelines to

follow their natural processes• Encourage natural channels &

shorelines that provide water quality benefits for runoff

29


NSP Natural Shoreline Protection


ProtectionNatural channels and shorelines:1 The Program or Regulation to protect1. The Program or Regulation to protect

natural shorelines must prohibit: For channels - Riprap, armoring,

channel alterations, dredging, , g g,filling, grubbing or removing vegetation.

For shorelines, lakes or oceans –alterations to a beach including nourishment projects, alteration to sand dunes and construction of seawalls, bulkheads, armoring orseawalls, bulkheads, armoring or other shoreline stabilization structures

30


NSP Natural Shoreline Protection


ProtectionNatural channels and shorelines:2 The Program or Regulation may allow:2. The Program or Regulation may allow:

Human alterations that benefit the natural floodplain functions, such as removing a levee, restoring g , ghabitat, or planting to preserve sand dunes, provided the projects don’t prevent channel or shoreline movement or reduce other naturalmovement or reduce other natural floodplain functions

31

Open Space Preservation In Folly Beachp p y

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33

Conservation Zoning


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35

QuestionsQuestions


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