Hardeeville, SC

Flood Watch

Three USGS gauges track the Savannah River upstream of Hardeeville. Water at Burton's Ferry takes roughly five days to reach us -- giving you actionable warning well before conditions become dangerous.

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Fetching live readings from USGS Water Services.

River Gauge Stations

Local gauge · nearest to Hardeeville

Savannah River at Hardeeville

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River Height
--ft
How high the water is right now
Tidal Influence
--
Ocean tide affects this gauge daily

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Upstream warning gauge · ~30 mi up · ~2 days early warning

Savannah River near Clyo, GA

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River Height
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How high the water is right now
Flow Rate
--cfs
Cubic feet of water moving past per second

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Early warning gauge · ~70 mi up · ~5 days early warning

Savannah River at Burton's Ferry, GA

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River Height
--ft
How high the water is right now
Flow Rate
--cfs
Cubic feet of water moving past per second

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How to Read These Gauges

Why three gauges?

Flooding in Hardeeville doesn't start here -- it starts as heavy rain falling 70 to 100 miles upstream in the Georgia and South Carolina piedmont. That water collects into the Savannah River and travels downstream for days before it ever reaches Jasper County.

A single local gauge would only tell you what's happening right now at your doorstep. By the time that reading turns alarming, you may have only hours to respond. Burton's Ferry, roughly 70 miles up, gives you a five-day head start. Clyo, about 30 miles up, gives you one to two days. Together, the three gauges let you watch a flood event develop in real time and make decisions while you still have room to act.

What the flood stages mean

  • Normal River is within its banks. No action needed.
  • Watch River is rising. Worth monitoring closely.
  • Minor Low-lying areas near the riverbanks are being affected.
  • Moderate Structures are impacted. Some roads may be flooded.
  • Major Widespread damage upstream. Significant water heading toward Hardeeville.

Why the local gauge looks different

The Hardeeville gauge is the closest monitoring point to where Savannah River flooding actually affects Jasper County. Its flood stage thresholds are set by the National Weather Service based on specific local impact points -- roads, structures, and low-lying areas near the river corridor. The upstream gauges at Clyo and Burton's Ferry use standard flood stage classifications. The Hardeeville gauge reflects what those rising levels actually mean once the water arrives here.

Data reliability

Sensor readings are transmitted automatically every 15 minutes from equipment maintained by the USGS South Atlantic Water Science Center.

Recent measurements are flagged as provisional by USGS until a technician reviews them, which is standard practice. Provisional data is reliable for situational awareness but may be slightly adjusted after review. For official flood warnings and evacuation guidance, always consult the National Weather Service Charleston and Jasper County Emergency Management.

Official Flood Resources

NOAA River Forecast

National Weather Service 72-hour river level forecast specifically for the Hardeeville gauge.

water.noaa.gov →

NWS Charleston

Active flood warnings, watches, and advisories for Jasper County and the Lowcountry.

weather.gov/chs →

Check Your Flood Zone

Look up the FEMA flood zone designation for any address inside Hardeeville city limits.

Open property map →

Sign Up for Emergency Alerts

Get Code Red notifications for Jasper County directly to your phone -- flood warnings, evacuations, and emergency updates from SC Emergency Management.

scemd.org →

Savannah River Flooding and Hardeeville, SC

Hardeeville sits at the downstream end of the Savannah River basin, where water drained from more than 10,000 square miles of Georgia and South Carolina eventually flows past the city. Upstream gauge readings are the most actionable flood intelligence available to local residents and property owners.

How far upstream flooding affects Hardeeville

A flood event at Burton's Ferry, roughly 70 miles upstream, takes approximately four to five days to reach Hardeeville. The Clyo station, about 30 miles upstream, provides a one-to-two-day warning window. Watching these gauges after heavy rainfall in the Augusta or Savannah basin gives residents days of advance notice before water reaches Jasper County.

Hardeeville flood history

Hardeeville's most significant recorded flood on the Savannah River occurred in February 1998, when the local gauge peaked at 14.18 feet. That event followed prolonged rainfall across the upper basin. More recent moderate events have pushed the local gauge above 10 feet, affecting low-lying areas along the river corridor west of I-95.

FEMA flood zones in Hardeeville

Significant portions of western Hardeeville and unincorporated Jasper County along the Savannah River corridor are designated FEMA Special Flood Hazard Areas. Zone AE properties carry mandatory flood insurance requirements under the National Flood Insurance Program. Use our property map to check any specific address.

About this tool

This page pulls live data directly from the USGS National Water Information System using their public API. No intermediary, no delay beyond the sensor's own reporting interval. The three gauges shown were selected to give Hardeeville residents the earliest possible warning of rising water on the Savannah River corridor.