Magnitude and frequency of floods for rural streams in Georgia, South Carolina, and North Carolina, 2017—Summary
Reliable flood-frequency estimates are important for hydraulic structure design and floodplain management in Georgia, South Carolina, and North Carolina. Annual peak streamflows (hereafter, referred to as peak flows) measured at 965 U.S. Geological Survey streamgages were used to compute flood-frequency estimates with annual exceedance probabilities (AEPs) of 50, 20, 10, 4, 2, 1, 0.5, and 0.2 percent. These AEPs correspond to flood-recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years, respectively. A subset of these streamgages (801) were used to develop equations to predict the AEP flood flows at ungaged stream locations. This study was completed by the USGS in cooperation with the Georgia, South Carolina, and North Carolina Departments of Transportation and the North Carolina Department of Crime Control and Public Safety, and the results are summarized in this fact sheet. The complete results and the supporting data are presented in the companion scientific investigations report and data release.
Citation Information
| Publication Year | 2023 |
|---|---|
| Title | Magnitude and frequency of floods for rural streams in Georgia, South Carolina, and North Carolina, 2017—Summary |
| DOI | 10.3133/fs20233011 |
| Authors | Toby D. Feaster, Anthony J. Gotvald, Jonathan W. Musser, J. Curtis Weaver, Katharine R. Kolb |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Fact Sheet |
| Series Number | 2023-3011 |
| Index ID | fs20233011 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Georgia Water Science Center; South Atlantic Water Science Center |
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Anthony J Gotvald, PE
Surface-Water SpecialistEmailPhoneJonathan W Musser
HydrologistEmailJohn C Weaver
Assistant Director for Data - NCEmailPhoneKatharine Kolb
GeographerAssociate National Map Liaison NC & SCEmailPhone