Fourmile Run at Alexandria water level

Name: Fourmile Run at Alexandria water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Fourmile Run, Virginia, United States

Directions

Below flood stage

Water level

4.08ft Steady over the last 24 hours

Measured Oct 19, 2026, 04:35 AM EDT (17 min ago)

Flow: 4.2 cfs

History

7 days

Water level Minor flood stage

What this means

Water levels are unremarkable at Fourmile Run at Alexandria, where the gauge shows 4.08 ft.

It is 7.92 ft below the flood stage of 12.00 ft.

The level has held steady over the past 24 hours. The 30-day range is 4.08 ft – 4.67 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 20.20 ftJune 25, 2006

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 12.00 ft.

What happens at each level

18.00 ft: Significant flooding is occurring with structures and roads impacted on both sides.
15.00 ft: Water approaches Arlington Mill Road on the south side of the stream. On the north side, water is approaching structures.
12.00 ft: Water begins to flood the north bank, into grassy areas and parking lots.
6.00 ft: Flooding of low portions of the Four Mile Run Trail begins.
4.08 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	20.20 ft	June 25, 2006
2	15.30 ft	July 8, 2019
3	13.07 ft	September 26, 1975
4	12.91 ft	July 7, 2020
5	12.53 ft	August 31, 2018
6	12.40 ft	June 21, 1972
7	12.26 ft	September 1, 2018
8	11.83 ft	September 23, 2003
9	11.54 ft	August 15, 2021
10	11.29 ft	September 8, 2011

Weather at the gauge

The forecast is not available right now.

Sunrise 07:22 AM Sunset 06:26 PM Daylight 11 hr, 3 min First quarter 57%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Cameron Run at AlexandriaRiver gauge, Cameron Run	3.91 ft	Below flood stage	−0.05 ft	2.9 mi
Potomac River at Wisconsin Ave, WashingtonEstuary gauge, Potomac River	2.50 ft	Below flood stage	+1.91 ft	4.3 mi
Potomac River near Wash, Dc Little Falls Pump StationRiver gauge, Potomac River	3.54 ft	Below flood stage	−0.10 ft	8 mi
Accotink Creek near AnnandaleRiver gauge, Accotink Creek	1.62 ft	Below flood stage	−0.10 ft	8 mi
Hickey Run at National Arboretum at WashingtonRiver gauge, Hickey Run	0.3 cfs	Normal	−0.1 cfs	8 mi
Long Branch near AnnandaleRiver gauge, Long Branch	0.9 cfs	Normal	−0.3 cfs	8 mi
Rock Creek at Joyce Rd WashingtonRiver gauge, Rock Creek	1.43 ft	Below flood stage	−0.15 ft	8 mi
Watts Branch at WashingtonRiver gauge, Watts Branch	4.15 ft	Below flood stage	−0.01 ft	9 mi

Questions and answers

What is flood stage for Fourmile Run at Alexandria?

The official flood stage is 12.00 ft. The level is currently 7.92 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Fourmile Run at Alexandria today?

On Oct 19, 2026, 04:35 AM EDT, the water level was 4.08 ft. Steady over the last 24 hours.

Is Fourmile Run at Alexandria rising or falling?

Steady over the last 24 hours.

Is the level of Fourmile Run at Alexandria normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Fourmile Run at Alexandria?

The highest level on record is 20.20 ft on June 25, 2006.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01652500 (Agency page)
Coordinates: 38.84333, -77.08586 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	4.08 ft	2026-10-19 08:35	Provisional
Flow	4.2 cfs	2026-10-19 08:35	Provisional

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How to cite

U.S. Geological Survey: Fourmile Run at Alexandria (usgs:01652500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/virginia/fourmile-run-at-alexandria

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer