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Flood frequency of the Savannah River at Augusta, Georgia

January 1, 1990

To fill an increasing need for reliable information on floods of various recurrence intervals on the Savannah River a flood-frequency relation was developed for the long-term gaging station at Augusta, Georgia. The flood-frequency analysis was complicated by the fact that the Savannah River upstream of Augusta has experienced increasing regulation of flow caused by three large dams constructed since 1952. The pre-impoundment period was important to the flood-frequency analysis because it included a number of large floods that, even when adjusted for regulation, exceed all floods since 1952. A reservoir routing model was used to adjust nine such floods for the effects of regulation, and to develop a relation for estimating regulated peak discharges for additional unregulated floods. The 1% chance exceedance flood for regulated conditions on the Savannah River at Augusta was computed as 180,000 cu ft/sec. (USGS)

Publication Year 1990
Title Flood frequency of the Savannah River at Augusta, Georgia
DOI 10.3133/wri904024
Authors C.L. Sanders, H.E. Kubik, J.T. Hoke, W.H. Kirby
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Water-Resources Investigations Report
Series Number 90-4024
Index ID wri904024
Record Source USGS Publications Warehouse
USGS Organization South Atlantic Water Science Center