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Reedy River near Waterloo, SC Water Level Today

South Carolina · USGS gauge 021650905 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 021650905 sits on the Reedy River and reads everything draining 251 square miles of the Saluda basin. Its datum sits 439 feet above sea level NAVD88. Daily flow has been on record here since 2005, 21 years of it.

Where this gauge sits in the drainage

Two gauged sites sit upstream of here. The closest is Reedy River above Fork Shoals, SC, reading 110 square miles. This gauge adds the 141 square miles that drain in between. Downstream the next reading comes from Lake Greenwood near Chappells, SC at 1,170 square miles, so what passes this gauge is about 21% of the water measured there. Water passing here goes on to Saluda River at Chappells, SC.

Normal flows here

The Reedy River runs a median of 220 cfs at this gauge across 21 years of record. March is the fullest month at a median 332 cfs, and October the leanest at 126 cfs. The highest daily mean on record is 7,720 cfs in 2020, and the lowest is 13 cfs in 2011.

Median flow by month
MonthMedian flowShare of annual median
Jan319 cfs145%
Feb311 cfs141%
Mar332 cfs151%
Apr307 cfs140%
May247 cfs112%
Jun206 cfs94%
Jul168 cfs76%
Aug174 cfs79%
Sep130 cfs59%
Oct126 cfs57%
Nov168 cfs76%
Dec246 cfs112%

Medians from the USGS daily-statistics record, 2005 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Reedy River reaches flood stage at this gauge at 30 feet. NWS starts watching it at 25 feet. The highest crest on record is 17.3 feet, in October 2015.

NWS flood categories
CategoryGage height
Action25 ft
Minor flooding30 ft
Moderate flooding35 ft
Major flooding40 ft
Highest crests on record
WhenCrest
October 201517.3 ft
March 200715.9 ft
January 201015.6 ft
December 200415.5 ft
May 201212.7 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge WRLS1. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 021650905. Percentile context computed against the gauge's period of record. Not for navigation.

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