South Anna River near Ashland, VA Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 01672500 sits on the South Anna River and reads everything draining 395 square miles of the Pamunkey basin. Its datum sits 83 feet above sea level NAVD88. Daily flow has been on record here since 1931, 89 years of it.

Where this gauge sits in the drainage

No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Pamunkey River near Hanover, VA at 1,078 square miles, so what passes this gauge is about 37% of the water measured there.

Normal flows here

The South Anna River runs a median of 181 cfs at this gauge across 89 years of record. March is the fullest month at a median 415 cfs, and September the leanest at 60 cfs. The highest daily mean on record is 16,000 cfs in 1969, and the lowest is 2.3 cfs in 1966.

Medians from the USGS daily-statistics record, 1931 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The South Anna River reaches flood stage at this gauge at 12 feet. NWS starts watching it at 11 feet. The highest crest on record is 25 feet, in August 1969.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge AHLV2. Stages are gage height, not depth. Not for navigation.