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Waccamaw River at Conway Marina at Conway, SC Water Level Today

South Carolina · USGS gauge 02110704 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02110704 sits on the Waccamaw River and reads everything draining 1,440 square miles of the Waccamaw basin. Its datum sits 6 feet below sea level NAVD88. Daily flow has been on record here since 1994, 31 years of it.

Where this gauge sits in the drainage

Two gauged sites sit upstream of here. The closest is Waccamaw River at Sc-22 below Longs, SC, reading 1,230 square miles. This gauge adds the 210 square miles that drain in between.

Normal flows here

The Waccamaw River runs a median of 988 cfs at this gauge across 31 years of record. March is the fullest month at a median 1,750 cfs, and June the leanest at 403 cfs. The highest daily mean on record is 48,500 cfs in 2018, and the lowest is -321.0 cfs in 1998.

Median flow by month
MonthMedian flowShare of annual median
Jan1,390 cfs141%
Feb1,690 cfs171%
Mar1,750 cfs177%
Apr1,290 cfs131%
May582 cfs59%
Jun403 cfs41%
Jul413 cfs42%
Aug650 cfs66%
Sep1,140 cfs115%
Oct1,180 cfs119%
Nov587 cfs59%
Dec1,040 cfs105%

Medians from the USGS daily-statistics record, 1994 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Waccamaw River reaches flood stage at this gauge at 11 feet. NWS starts watching it at 10 feet. The highest crest on record is 21.2 feet, in September 2018.

NWS flood categories
CategoryGage height
Action10 ft
Minor flooding11 ft
Moderate flooding12 ft
Major flooding14 ft
Highest crests on record
WhenCrest
September 201821.2 ft
October 201617.9 ft
September 192817.8 ft
September 199917.6 ft
October 201516.2 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge CNWS1. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02110704. Percentile context computed against the gauge's period of record. Not for navigation.

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