1. Georgia Flood M.A.P. Program
CRS – Education and Outreach Workshop Georgia Coastal Counties Mapping Project
Armstrong Center
Savannah, GA
August 28, 2014

2. 3 Takeaways
Why are the maps being updated.
Status of the coastal project
CRS Benefits of the new maps

3. Georgia Coastal Project
9 Counties Updated
Bryan, Camden, Chatham, Charlton, Effingham, Glynn, Liberty, Long & McIntosh Counties
343 total panels
Study Types
Coastal surge and wave height study
Approximately 284 miles of approximate study
Approximately 57 miles of redelineation study
Approximately 8 miles of local detailed study
Approximately 12 miles of limited detailed studies
Preliminary Risk MAP Products
Phase I ( Riverine Study) – Completed
Phase II (Coastal Study) – Available for viewing on June 2015

4. Why the Coastal Flood Risk Study Is Being Updated
Flood risk changes over time – Effective study based on outdated hurricane modeling and topographic data
Ability to more accurately define risk and account for significant development in project area
To gain a complete and current picture of coastal flood risks. This helps community:
Plan for the risk
Communicate the risk to your citizens
Take action to reduce flood risk to lives and property
Build smarter and safer

5. Why the Coastal Flood Risk Study Is Being Updated
Current surge analysis is 20 to 40+ years old
Chatham County - Environmental Sciences Services Administration’s JPM Method – 1970 publication
Climate data from 1965 to 1981 NOAA reports
Glynn and Camden Counties – updated surge in 1989 using SURGE model

6. Why the Coastal Flood Risk Study Is Being Updated
Your risk is better defined through
Updated elevation data (topographic data and aerial imagery)
New climatological data based on recent storms
Computing resources – a lot has changed in 30 years!
Updated coastal hazard methodologies/modeling
Improvement in Geographic Information System (GIS) technologies to improve coastal mapping accuracy

7. Georgia Coastal Project Timeline
Fall 2010
Fall 2011
Summer 2012
Winter 2013
Spring 2013
Fall 2013
Spring 2014
Summer 2014
Spring 2015
Summer2015
Winter 2016
Summer 2016
Inland Phase*
Scoping Meetings
Kickoff Meeting
Draft Map Review Meetings
PDCC Meeting
Appeal & Protest Period
LFD
Resilience Meeting
Effective FIRMs
Multi-Agency Stakeholder Meetings
Open House
Coastal Phase
 Technical Update Meeting
Storm Surge Update Meeting
Resilience Meeting 
*Camden, Glynn, & McIntosh Counties do not have any panels being revised under the inland phase of this project 7

8. Coastal Flood Risk Map

9. FEMA FIS Study is not Evacuation Study

10. Typical FIRM CRS Benefits
The model simulates the response of the still water surface to atmospheric forcing (water interacts with elevation features)

11. Limit of Moderate Wave Action (LiMWA) CRS Benefits
Defined by the area subject to wave action with waves greater than 1.5 feet in height

12. Limit of Moderate Wave Action (LiMWA) CRS Benefits
FEMA Procedure Memorandum No. 50, 2008
At present not a regulatory requirement
No Federal Insurance requirements tied to LiMWA
Just for open coast
CRS benefit for communities requiring VE Zone construction standards in areas defined by LiMWA or areas subject to waves greater then 1.5 ft.

13. Limit of Moderate Wave Action (LiMWA) CRS Benefits
Video

14. Coastal Flood Risk Study Contacts
Project Manager
Todd Harris, CFM
(404)
State NFIP Coordinator
Tom Shillock, CFM
(404)
REUSE??