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Catoctin Creek at Taylorstown, VA Water Level Today

Virginia · USGS gauge 01638480 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01638480 sits on Catoctin Creek and reads everything draining 90 square miles of the Middle Potomac-Catoctin basin. Its datum sits 247 feet above sea level NAVD88. Daily flow has been on record here since 1971, 54 years of it.

Where this gauge sits in the drainage

One gauged site sits upstream of here. The closest is South Fork Catoctin Creek at Rt 698 near Waterford, VA, reading 32 square miles. This gauge adds the 58 square miles that drain in between. Downstream the next reading comes from Potomac River at Point of Rocks, MD at 9,651 square miles, so what passes this gauge is about 1% of the water measured there. Water passing here goes on to Potomac River at Edwards Ferry near Poolesville,md and Potomac River near Wash, Dc Little Falls Pump Sta.

Normal flows here

Catoctin Creek runs a median of 49 cfs at this gauge across 54 years of record. March is the fullest month at a median 103 cfs, and September the leanest at 10 cfs. The highest daily mean on record is 9,530 cfs in 1972, and the lowest is 0.1 cfs in 1999.

Median flow by month
MonthMedian flowShare of annual median
Jan75 cfs153%
Feb84 cfs171%
Mar103 cfs210%
Apr96 cfs195%
May71 cfs145%
Jun44 cfs89%
Jul24 cfs49%
Aug14 cfs29%
Sep10 cfs20%
Oct16 cfs33%
Nov29 cfs59%
Dec59 cfs120%

Medians from the USGS daily-statistics record, 1971 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

Catoctin Creek reaches flood stage at this gauge at 12 feet. NWS starts watching it at 10 feet. The highest crest on record is 25.6 feet, in June 1972.

NWS flood categories
CategoryGage height
Action10 ft
Minor flooding12 ft
Moderate flooding17 ft
Major flooding22 ft
Highest crests on record
WhenCrest
June 197225.6 ft
October 197621.7 ft
July 198718 ft
December 199215.7 ft
September 200315.6 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge TAYV2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01638480. Percentile context computed against the gauge's period of record. Not for navigation.

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