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Combahee River near Yemassee, SC Water Level Today

South Carolina · USGS gauge 02176000 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02176000 sits on the Combahee River and reads everything draining 1,100 square miles of the Broad-St. Helena basin. Its datum sits 4 feet below sea level NAVD88. Daily flow is on record here from 1951 to 1957, 6 years in all.

Where this gauge sits in the drainage

One gauged site sits upstream of here. The closest is Salkehatchie River near Miley, SC, reading 341 square miles. This gauge adds the 759 square miles that drain in between.

Normal flows here

The Combahee River runs a median of 290 cfs at this gauge across 6 years of record. March is the fullest month at a median 830 cfs, and September the leanest at 102 cfs. The highest daily mean on record is 5,070 cfs in 1955, and the lowest is 9.0 cfs in 1954.

Median flow by month
MonthMedian flowShare of annual median
Jan425 cfs147%
Feb724 cfs250%
Mar830 cfs287%
Apr683 cfs236%
May425 cfs147%
Jun144 cfs50%
Jul123 cfs42%
Aug117 cfs40%
Sep102 cfs35%
Oct181 cfs63%
Nov180 cfs62%
Dec376 cfs130%

Medians from the USGS daily-statistics record, 1951 to 1957. A month at 100% is running at its own long-term median. USGS stopped publishing a daily flow record at this gauge, so these are historical norms, not a baseline for current readings.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02176000. Percentile context computed against the gauge's period of record. Not for navigation.

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