DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA

RESTON, VA38.8847°N, -77.3324°W Updated 20 hr ago

FLOW RATE

3cfs

GAUGE HT

1.01ft

WATER TEMP

64°F

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

3cfs 89.9% vs avg

Optimal band: 3–5 cfs

PERIOD HIGH

57cfs

PERIOD LOW

2cfs

RUNNABLE

50%

last 7 day in band

Gauge Height

1.01ft

Water Temperature

64.4°F

Water Turbidity

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38.8847, -77.3324

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DATA · USGS · NOAA · NWSUPDATED 2026-10-16 00:00 UTC

Site #01645704·USGS

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