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Updating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of Natural Resources

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Page 1: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Updating Georgia’s Coastal Maps Collaboration on my Mind

June 2, 2015

Onur Celik, PE, CFM,

CDM Smith

Todd Harris, PMP, CFM

Georgia Department of Natural Resources

Page 2: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Outline

• Project Overview

– History

– Scope

– Collaborating Parties

– Outreach

• Analyses and Mapping Approach

– Coastal Analysis

– Riverine Analysis

– Mapping/Regulatory Products

– Non-Regulatory Products

• Conclusion – Q/A

Page 3: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

History – Georgia Flood M.A.P. Program

• Increase focus on risk assessment and planning

• Continue partnerships with Federal, State, and Local Agencies

• Acquire and utilize high accuracy topo data

• Deliver risk products and datasets

Enhanced Outreach Program

• Outreach Guidebooks

• Increased Community Engagement

• Robust Website (www.georgiadfirm.com)

Transitioning State Program to align with FEMA’s Risk MAP Program

Page 4: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

History

• Effective Coastal Studies are dated– Current surge analysis is 20 to 40+ years old!

Chatham County – ESSA’S JPM Method (1970)

Climate data from 1965 to 1981

Glynn and Camden Counties – SURGE model update in 1989

• Riverine Studies are partially up-to dateBryan, Charlton, Effingham, Liberty, Long, Chatham partially updated in 2014

Camden, Glynn, McIntosh analyses were older and did not utilize the current LiDAR data or latest hydraulic models

Page 5: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

History

– FEMA Funded Risk MAP projects for

10 Counties in Eastern/Coastal Georgia:

• Bryan

• Camden

• Charlton

• Chatham

• Effingham

• Glynn

• Liberty

• Long

• McIntosh

• Newton

Page 6: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Scope

Complete (Inland):

– Completed:

In Progress (Coastal):

Page 7: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Collaborating Parties

– FEMA contracted AECOM/Baker for Coastal Analyses

– Georgia DNR contracted CDM Smith and Dewberry for Riverine Analyses, Production

– Inland Riverine Analyses completed and

inland counties became effective in 2014

– Coastal Analyses are complete in Spring

- Preliminary Maps will be issued tentatively

in September

Page 8: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Outreach

DiscoveryMulti-Agency Coordination

Meeting

Kick-off (Coastal Update) Meeting

H&H-Coastal Modeling

Flood Risk Review

Meetings

Preliminary

FIRMs & FIS

MARCH 2012 FEB. 2013 FALL 2014 AUG. 2015 SEP. 2015MAY 2014

FALL 2015

PRELIMINARY PROCESSING

POST PRELIMINARY PROCESSING

FEMA issues Letter of Final Determination

Six Month Compliance

Period (Ordinance Updates)

Resilience Meeting

CCO Meeting90-Day Appeal

Period

FEMA & GA DNR resolve appeals &

protests

Page 9: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Outreach – Upcoming Flood Study Review Meetings

Page 10: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Outreach – Property Notification Tool

Page 11: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Analyses and Mapping Approach

• Study Types:

– Coastal

– VE or AE Zones

– LiMWA

– Riverine

– Detailed/Limited Detailed

– Redelineation

– Approximate

Page 12: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Coastal Analyses

Determined from storm surge model

Components of Coastal Flooding:

1. Storm Surge Stillwater Elevation (SWEL)

2. Wave Setup

3. Wave Height

4. Wave Runup

Page 13: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Coastal Analyses – Storm Surge

• Set up “mesh” for hurricane/surge model

• Validated hurricane/surge model

• Ran hundreds of hypothetical storms

• Resulting storm surge still water elevations for the 1% annual chance event

Page 14: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Coastal Analyses

Page 15: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Coastal Analyses – Mapping

Page 16: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Riverine Analyses

37131.0500

35257.9400

35037.9400

– Types of Analyses

– Detailed/Limited Detailed

– Redelineation

– Approximate

Page 17: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Riverine Analyses

1200 1400 1600 1800 2000 2200 2400 2600

76

78

80

82

84

Beaverdam Swamp- Approximate Study RS = 54448.14

Station (ft)

Ele

vatio

n (

ft)

Legend

WS 100yr

Ground

Ineff

Bank Sta

.12 .06

.12

Page 18: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products

• Upcoming FIRM and FIS Report will follow new Specifications:

Page 19: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIS Report

• Database Driven and more User Friendly

Old Format New Format

Page 20: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIS Report

• Map Index in the report for easy reference

• Information for 4% (25 Year) Flood (where available):

Page 21: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIS Report

• Future Conditions

(if applicable)

• Protection Measures:

Page 22: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIRM

• Additional Information (Elevations at 1/10’ increments etc)

• New Look, more streamlined legend

Old Format New Format

Page 23: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIRM

• User Friendly

Page 24: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Regulatory Products – FIRM

• Additional Information (Elevations at 1/10’ increments etc)

• New Look, more streamlined legend

Old Format New Format

Page 25: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Non-Regulatory Product – Changes Since Last FIRM

• First Time in Georgia

• Provides information to be used for Mitigation/Outreach Activities

Page 26: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Non-Regulatory Product – Flood Depth Grid

• First Time in Georgia

• Provides information to be used for Mitigation/Outreach Activities

Page 27: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Non-Regulatory Product – Wave Height Grid

• First Time in Georgia

• Provides information to be used for Mitigation/Outreach Activities

Example: Wave Height Grid

Page 28: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Non-Regulatory Product – Risk Assessment Grid

• First Time in Georgia

• Provides information to be used for Mitigation/Outreach Activities

Page 29: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Non-Regulatory Product – AOMI

• First Time in Georgia

• Provides information to be used for Mitigation/Outreach Activities

Page 30: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Conclusion

Preliminary by

September 30

Page 31: Updating Georgia’s Coastal MapsUpdating Georgia’s Coastal Maps Collaboration on my Mind June 2, 2015 Onur Celik, PE, CFM, CDM Smith Todd Harris, PMP, CFM Georgia Department of

Questions/Comments???

Todd Harris, GADNR, [email protected]

Onur Celik, CDM Smith, [email protected]


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