georgia flood m.a.p. program
DESCRIPTION
Georgia Flood M.A.P. Program. CRS – Education and Outreach Workshop Georgia Coastal Counties Mapping Project. Armstrong Center Savannah, GA August 28, 2014. 3 Takeaways. Why are the maps being updated. Status of the coastal project CRS Benefits of the new maps. Georgia Coastal Project. - PowerPoint PPT PresentationTRANSCRIPT
Georgia Flood M.A.P. Program
Armstrong Center Savannah, GA
August 28, 2014
CRS – Education and Outreach Workshop
Georgia Coastal Counties Mapping Project
3 Takeaways
2
• Why are the maps being updated.
• Status of the coastal project
• CRS Benefits of the new maps
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
• Flood risk changes over time – Effective study based on outdated hurricane modeling and topographic data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
Why the Coastal Flood Risk Study Is Being Updated
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
• 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
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
Why the Coastal Flood Risk Study Is Being Updated
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
MeetingsKickoff
MeetingDraft Map
Review Meetings
PDCC Meeting
Appeal & Protest Period
LFD Resilience Meeting
Effective FIRMs
Multi-Agency
Stakeholder Meetings
Open House
Coastal PhaseScoping
MeetingsKickoff
Meeting Technical
Update Meeting
Storm Surge
Update Meeting
Draft Map Review
Meetings
PDCC Meeting
Appeal & Protest Period
LFD
Effective FIRMsMulti-
Agency Stakeholder Meetings
Open House
Resilience Meeting
7
*Camden, Glynn, & McIntosh Counties do not have any panels being revised under the inland phase of this project
Coastal Flood Risk Map
FEMA FIS Study is not Evacuation Study
Typical FIRM CRS Benefits
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
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.
Limit of Moderate Wave Action (LiMWA)CRS Benefits
Limit of Moderate Wave Action (LiMWA)CRS Benefits
• Video
Coastal Flood Risk Study Contacts
Project ManagerTodd Harris, CFM(404) 651-8504 [email protected]
State NFIP CoordinatorTom Shillock, CFM(404) 362-2606 [email protected]