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Hydrograph River at a Glance Download
Savannah River at Lake Thurmond Pool (ft)Observed: 323.83 ft at 7:00AM Nov 22, 2022Observed: 323.8 ft at 8:00AM Nov 22, 2022Highest Observation: 323.94 ft at 7:00AM Nov 23, 2022Observed: 323.91 ft at 8:00AM Nov 23, 2022Observed: 323.89 ft at 7:00AM Nov 24, 2022Observed: 323.89 ft at 8:00AM Nov 24, 2022Observed: 323.79 ft at 7:00AM Nov 25, 2022Observed: 323.79 ft at 8:00AM Nov 25, 2022Observed: 323.73 ft at 7:00AM Nov 26, 2022Observed: 323.61 ft at 7:00AM Nov 27, 2022Observed: 323.55 ft at 7:00AM Nov 28, 2022Observed: 323.56 ft at 8:00AM Nov 28, 2022Observed: 323.64 ft at 7:00AM Nov 29, 2022Observed: 323.73 ft at 7:00AM Nov 30, 2022Observed: 323.75 ft at 8:00AM Nov 30, 2022USGS--Water Resources of the United StatesCHDS1(plotting HPIRZ) Graph Created (9:46PM Nov 30, 2022)ObservedLatest observed value: 323.75 ft at 8:00 AM EST 30-Nov-2022. Flood Stage is 335 ft
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Tabular Data (UTC)
Tabular Data (EST)
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Datum: Not Available
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Savannah River at Lake Thurmond are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Savannah River Upstream Gauge Downstream Gauge Downstream Gauge - at Augusta
Flood Categories (in feet)
Major Flood Stage: 338
Moderate Flood Stage: 336
Flood Stage: 335
Action Stage: 334
Low Stage (in feet): 0

Historic Crests
(1) 336.46 ft on 04/11/1964
(2) 336.31 ft on 04/10/1964
(3) 336.03 ft on 01/01/2016
(4) 335.73 ft on 04/09/1964
(5) 335.45 ft on 02/07/1998
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(P): Preliminary values subject to further review.

Recent Crests
(1) 336.03 ft on 01/01/2016
(2) 335.45 ft on 02/07/1998
(3) 335.37 ft on 02/06/1998
(4) 335.28 ft on 03/07/1971
(5) 335.41 ft on 05/06/1964
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(P): Preliminary values subject to further review.

Low Water Records
(1) 316.90 ft on 12/15/2007
(2) 319.13 ft on 10/27/2007

For more information on your flood risk go to

Zoom Level:16
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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
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340 Some low lying bridges begin to get inundated around Lloyds Creek and the Little River in South Carolina.
338 Roads near Lake Thurmond become flooded with 2 feet of water with some areas being cut off from the main land. Some structures near the lake shore flood.
336 Some roads in low areas and structures close to the shore of Lake Thurmond are threatened by flood water.
335 Flood stage - boat ramps and structures right on the shore line begin to flood. Locations downstream of Clarks Hill Dam are also subject to flooding.
334 Water approaches low lying areas along the shore of Lake Thurmond.
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Latitude: 33.661111° N, Longitude: 82.200000° W, Horizontal Datum: Unknown

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 335 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks

Current/Historical Observations:

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NWS Information
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Columbia Weather Forecast Office
2909 Aviation Way
West Columbia, SC 29170-2102
(803) 822-8135
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