TidalMap
Explore this water on the live chart →

Appomattox River at Mattoax, VA Water Level Today

Virginia · USGS gauge 02040000 · live data · Updated Oct 28, 2026

Loading…

About this gauge

USGS gauge 02040000 sits on the Appomattox River and reads everything draining 725 square miles of the Appomattox basin. Its datum sits 174 feet above sea level NAVD88. Daily flow has been on record here since 1926, 100 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 Appomattox River at Route 602 near Mannboro, VA at 942 square miles, so what passes this gauge is about 77% of the water measured there. Water passing here goes on to Appomattox River at Matoaca, VA. It then enters Appomattox River above Lake Chesdin Dam near Petersburg,va, below which releases set the flow.

Normal flows here

The Appomattox River runs a median of 356 cfs at this gauge across 100 years of record. March is the fullest month at a median 735 cfs, and September the leanest at 152 cfs. The highest daily mean on record is 34,300 cfs in 1940, and the lowest is 2.6 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan572 cfs160%
Feb710 cfs199%
Mar735 cfs206%
Apr614 cfs172%
May422 cfs118%
Jun282 cfs79%
Jul195 cfs55%
Aug181 cfs51%
Sep152 cfs43%
Oct195 cfs55%
Nov282 cfs79%
Dec436 cfs122%

Medians from the USGS daily-statistics record, 1926 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Appomattox River reaches flood stage at this gauge at 21 feet. NWS starts watching it at 18 feet. The highest crest on record is 35.3 feet, in August 1940.

NWS flood categories
CategoryGage height
Action18 ft
Minor flooding21 ft
Moderate flooding25 ft
Major flooding28 ft
Highest crests on record
WhenCrest
August 194035.3 ft
June 197234.1 ft
October 197231.1 ft
February 197930.8 ft
April 193730 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge MTXV2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02040000. Percentile context computed against the gauge's period of record. Not for navigation.

Open Appomattox River at Mattoax, VA on the live chart →

River pins, dam-release overlays and wadability lines live in the app, start a free TidalMap trial.