What is the current flow on Long Branch?

Long Branch was running 0 cubic feet per second as of Aug 1, 2026, 5:55 PM UTC, measured at USGS gauge 01654500. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

What is the water temperature on Long Branch?

78.1°F (25.6°C) as of Aug 1, 2026, 6:30 PM UTC, at USGS gauge 01654107. Long Branch carries no state trout classification, so the trout-stress thresholds do not apply to it — this is a water temperature measurement, not a fishery judgement.

Long Branch

Virginia. Streamflow and water-temperature readings from USGS gauges. Running 0 cfs as of Aug 1, 2026, 5:55 PM UTC.

Latest Reading

cubic feet / second

78.1°F

water temperature (25.6°C)

USGS gauges

Flow measured Aug 1, 2026, 5:55 PM UTC at gauge 01654500. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 01654107. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Long Branch

Gauge	Station	Water temp?
01654107	LONG BRANCH AT OLLEY LANE NR FAIRFAX, VA	Yes
01654500	LONG BRANCH NEAR ANNANDALE, VA	Yes

Fly fishing rivers →Virginia lakes →

Conditions: USGS NWIS (public domain).