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Hydrograph River at a Glance Download
Savannah River at Hartwell Dam Pool (ft)Highest Observation: 656.66 ft at 7:00AM Aug 29, 2014Highest Observation: 656.66 ft at 8:00AM Aug 29, 2014Observed: 656.59 ft at 9:10AM Aug 29, 2014Highest Observation: 656.66 ft at 7:00AM Aug 30, 2014Highest Observation: 656.66 ft at 8:00AM Aug 30, 2014HRTG1(plotting HPIRZ) Graph Created (12:19PM Aug 30, 2014)ObservedLatest observed value: 656.66 ft at 8:00 AM EDT 30-Aug-2014. Flood Stage is 665 ft
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NOTE: The above river forecast includes future rainfall. Forecast stages may be different if the rainfall does not occur.

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

NOTE: Forecasts for the Savannah River at Hartwell Dam are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Savannah River
Flood Categories (in feet)
Major Flood Stage:680
Moderate Flood Stage:670
Flood Stage:665
Action Stage:662

Historical Crests
(1) 665.40 ft on 04/08/1964
(2) 664.79 ft on 07/09/2013
(3) 664.76 ft on 04/08/1994
(4) 664.08 ft on 03/17/1996
(5) 664.02 ft on 03/20/1998
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(P): Preliminary values subject to further review.

Low Water Records
(1) 637.48 ft on 12/10/2008
(2) 642.32 ft on 10/21/2008
(3) 642.40 ft on 12/24/1981
(4) 643.85 ft on 01/03/1982
(5) 648.02 ft on 01/21/1982
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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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If you notice any errors in the below information, please contact our Webmaster
680 HOMES ON THE LAKE AND ON RIVERS THAT FEED INTO THE LAKE WILL BEGIN TO FLOOD.
675 SOME CAMPGROUNDS ON ISLANDS ON THE LAKE MAY BE AFFECTED.
670 ISLANDS ABOVE AND BELOW THE DAM WILL BECOME PARTIALLY COVERED.
668 WATER WILL BE AT THE BOTTOM OF THE BRIDGE ON CONERROSS CREEK AT HIGHWAY S-184, MARTIN CREEK AT HIGHWAY S-65 AND SENECA CREEK AT HIGHWAY S-210.
667.5 WATER WILL BE AT THE BOTTOM OF THE HIGHWAY SC71 BRIDGE OVER 26 MILE CREEK.
665 RECREATION AREAS NEAR THE LAKE SUCH AS LONG POINT...ASHBURY...SINGING PINES...SOUTH CAROLINA RIVER...BOYLES AND 12 MILE WILL BE CLOSED. CAMPING AREAS SUCH AS SPRINGFIELD...OCONEE POINT...WATSADLER AND GERORIA RIVER WILL LIKELY BE CLOSED. CREEKS THAT DRAIN INTO THE LAKE WILL BE EFFECTED BY BACKWATER ESPECIALLY ON OLD JEWELL ROAD. FLOATING FACLILITES ON THE LAKE AND ALONG THE BANKS OF THE LAKE WILL BEGIN TO FLOOD.
664.35 BACKWATER AFFECTS ON LOCAL STREAMS WILL CAUSE FLOODING OF SOME LOW AREAS AND ROADS SUCH AS DR JOHNS ROAD. PICNIC AREAS, BOAT RAMPS, CAMPGROUNDS AND RECREATION AREAS NEAR THE LAKE SHORELINE WILL BEGIN TO FLOOD.
663 AT THIS STAGE WATER STARTS TO FLOOD LOW SPOTS IN YARDS OF HOMES ALONG THE LAKE AND WATER STARTS TO BACKUP INTO LOCAL CREEKS THAT FEED INTO THE LAKE.
662 WATER MANAGEMENT THRESHOLD, EXPECT MORE FREQUENT INFLOW FORECASTS.
660 NORMAL FULL POOL LEVEL
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Latitude: 34.360833° N, Longitude: 82.827778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 665 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(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
Other 0 ft 665 ft  

Current/Historical Observations:

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For more information on expected river levels see our local river summary at: http://www.weather.gov/water/textprods/view.php?wfo=gsp&prod=RVD http://water.sas.usace.army.mil/home/indexDU.htm
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Greenville-Spartanburg Weather Forecast Office
1549 GSP Drive
Greer, SC 29651
(864) 848-3859
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Page last modified: 5-Aug-2014 6:39 PM
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