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Smith River at Martinsville, VA Water Level Today

Virginia · USGS gauge 02073000 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02073000 sits on the Smith River and reads everything draining 379 square miles of the Upper Dan basin. Its datum sits 656 feet above sea level NAVD88. Daily flow has been on record here since 1951, 75 years of it.

Where this gauge sits in the drainage

Three gauged sites sit upstream of here. The closest is Smith River at Bassett, VA, reading 259 square miles. This gauge adds the 120 square miles that drain in between. Downstream the next reading comes from Smith River at Eden, NC at 538 square miles, so what passes this gauge is about 70% of the water measured there.

Normal flows here

The Smith River runs a median of 374 cfs at this gauge across 75 years of record. April is the fullest month at a median 461 cfs, and November the leanest at 290 cfs. The highest daily mean on record is 11,300 cfs in 1987, and the lowest is 24 cfs in 1983.

Median flow by month
MonthMedian flowShare of annual median
Jan386 cfs103%
Feb401 cfs107%
Mar431 cfs115%
Apr461 cfs123%
May430 cfs115%
Jun385 cfs103%
Jul379 cfs101%
Aug360 cfs96%
Sep330 cfs88%
Oct298 cfs80%
Nov290 cfs78%
Dec345 cfs92%

Medians from the USGS daily-statistics record, 1951 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Smith River reaches flood stage at this gauge at 11 feet. NWS starts watching it at 9 feet. The highest crest on record is 20.1 feet, in September 1987.

NWS flood categories
CategoryGage height
Action9 ft
Minor flooding11 ft
Moderate flooding14 ft
Major flooding16 ft
Highest crests on record
WhenCrest
September 198720.1 ft
September 199616.8 ft
September 197916.6 ft
August 198515.4 ft
January 201015.2 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge SMMV2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02073000. Percentile context computed against the gauge's period of record. Not for navigation.

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