Description: Damage caused by hurricane Helene within the limits city of Savannah collected by Chatham Emergency Management Agency.Published October 3, 2024For internal SAGIS partners use only, do not distribute.
Service Item Id: c8166651ded6488a9acfba0be787c09a
Copyright Text: Custodian: City of Savannah, Development Services, GIS, 912-651-6510
Description: This dataset includes locations, names and grant information for the FEMA purchased lots in Savannah.Edited as neededAvailable for download on the SAGIS Open Data website (www.sagis.org).
Service Item Id: c8166651ded6488a9acfba0be787c09a
Copyright Text: Owner: City of Savannah, Real Estate Services, 912-651-6521
Custodian: Custodian: City of Savannah, Development Services, GIS, 912-651-6510
Description: City of Savannah - Approved Letters of Map Amendment (FEMA FIRM amendments)Publication Date: 2010 -- presentLast Edit Date: September 2017Update Frequency: Editied as needed, irregular editingUse Limitations: Available for public use and download on the SAGIS Open Data website (www.sagis.org)Data Source: Federal Emergency Management Agency (FEMA) - from individual letters of map change or amendments (LOMAs/LOMCs)
Service Item Id: c8166651ded6488a9acfba0be787c09a
Copyright Text: Owner: City of Savannah, Development Services Department, CFM, Tom McDonald, Ph: 912-651-6510, E-mail: tmcdonald@savannahga.gov
Editor: City of Savannah, Development Services, GIS Analyst, Ph: 912-651-6510.
For questions, contact Tom McDonald, CFM, Development Services, 912-651-6510., individual LOMA documents are available upon request, or by visiting the City of Savannah Flood Protection Information webpage at http://savannahga.gov/index.aspx?nid=936
Description: Boundary layer showing the municipalities within Chatham County, Georgia including Bloomingdale, Garden City, Pooler, Port Wentworth, Savannah, Thunderbolt, Tybee Island, Vernonburg and unincorporated Chatham County.Edited following changes in municipality boundaries.Use limitations: Available for public use and download via the SAGIS Open Data website
Description: This model layer represents the combined local Engineering Firms drainage studies for each drainage basin displaying the 100 Year Flood Limits by polygon boundaries. This model layer defines the areas that will be subject to development restrictions referenced in the 2018 Field Drainage Prevention Ordinance.This layer is to provide assistance in identifying specific local areas of problematic drainage resulting from a 100 Year 24 hour storm event.This model layer represents the local hydraulic study (ZONE 'M') of each drainage basin within the City of Savannah. The results of the detail drainage studies take into acount not only the surface runoff calculations, but also the pipe sizes and flow direction of existing underground stormwater conduits including recent CIP Drainage Basin improvement projects that may not have been incorporated into the National DFIRM Flood maps.CITY ZONE 'M' - means an area defined through hydraulic modeling or other standard engineering analysis as described in Article B, Section 8-70 of the Stormwater Field Drainage Prevention Ordinance.A calibrated hydrologic / hydraulic study of each of the drainage basin was performed using the Stormwater program XPSWMM and historic local flooding data to produce each of the 100 Year Flood Plain Limit boundaries.THIS LAYER IS EDITED REGULARLY, WITH MONTHLY REPLICATION.AVAILABLE FOR DOWNLOAD ON THE SAGIS OPEN DATA WEBSITE (www.sagis.org).
Service Item Id: c8166651ded6488a9acfba0be787c09a
Copyright Text: CASEY SOUTH BASIN STUDY - PUBLISHED FLOOD MODEL JULY, 2011 - EMC ENGINEERING SERVICES
CASEY NORTH BASIN STUDY - PUBLISHED FLOOD MODEL SEPTEMBER, 2013 - HUSSEY, GAY, BELL & DeYOUNG ENGINEERING SERVICES
BILBO BASIN STUDY - PUBLISHED REVISED FLOOD MODEL APRIL 2021 - HUSSEY, GAY, BELL ENGINEERING SERVICES
PLACENTIA BASIN STUDY - PUBLISHED FLOOD MODEL MAY, 2018 - EMC ENGINEERING SERVICES SPRINGFIELD CANAL BASIN STUDY - PUBLISHED FLOOD MODEL DECEMBER, 2017 - THOMAS & HUTTON ENGINEERING SERVICES
LITTLE OGEECHEE CANAL BASIN STUDY - PUBLISHED FLOOD MODEL FEBRUARY 2025 - THOMAS & HUTTON ENGINEERING SERVICES
OWNER: CITY OF SAVANNAH - STORMWATER DEPARTMENT.
ZACK HOFFMAN - STORMWATER DEPARMENT. DIRECTOR - PH. (912) 650-7855 ext. 1938 zhoffman@savannahga.gov
TOM McDONALD, CFM - PERMITTING / FLOODPLAIN ADMINISTRATOR - PH. (912) 912-651-6530 ext 1895) tmcdonald@SavannahGa.Gov
BARRIE WILKINS - ARCGIS EDITOR FOR THIS LAYER PH. (912) 650-7855 ext. 2859 bwilkins@savannahga.gov
Description: FEMA Flood Map geodatabase downloaded on August 17, 2018.S_FLD_HAZ_AR copied with additional fields added for calculating the X 500 zone and labels with BFE attached.
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