Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Bull Run near Manassas Park

Highest listed crest 20.20 ftFlood stage 12.0 ft20 crests since 2018

The Bull Run near Manassas Park crested above flood stage 20 times among the 20 crests the National Weather Service lists from 2018 to 2025. The highest, 20.20 ft on July 22, 2018, was moderate flooding, 8.20 feet above flood stage.

The gauge

Highest listed crest
20.20 ft
July 22, 2018
Flood stage
12.0 ft
No major stage set
Crests at major
0
20 above flood stage
Most recent flood crest
July 13, 2025
12.29 ft, minor flooding
Location
Fairfax County
Near Manassas Park (2.4 mi), Manassas (4.3 mi), Fairfax (8.8 mi)
Identifiers
NWS MPBV2
No USGS station

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Bull Run near Manassas Park
Action stage11.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)12.019Jul 13, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage20.01Jul 22, 2018Some inundation of structures and roads near the stream

Every listed crest

20 crests from 2018 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Bull Run near Manassas Park, 2018 to 2025 121416182022ft Flood stage 12.0 ft May 19, 2018: 12.44 ft, minor floodingJul 22, 2018: 20.20 ft, moderate floodingJul 26, 2018: 14.23 ft, minor floodingAug 1, 2018: 15.10 ft, minor floodingAug 22, 2018: 13.54 ft, minor floodingSep 28, 2018: 14.64 ft, minor floodingNov 16, 2018: 12.23 ft, minor floodingNov 25, 2018: 13.48 ft, minor floodingDec 16, 2018: 15.63 ft, minor floodingJan 20, 2019: 12.62 ft, minor floodingJan 25, 2019: 13.48 ft, minor floodingMar 22, 2019: 16.72 ft, minor floodingMay 6, 2019: 13.55 ft, minor floodingNov 1, 2019: 12.12 ft, minor floodingJan 25, 2020: 12.51 ft, minor floodingApr 13, 2020: 14.04 ft, minor floodingDec 23, 2022: 14.82 ft, minor floodingJan 10, 2024: 16.51 ft, minor floodingJan 28, 2024: 13.00 ft, minor floodingJul 13, 2025: 12.29 ft, minor flooding Highest, 20.20 ft, Jul 22, 2018 20202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Bull Run near Manassas Park 2010s: 14 14 2020s: 6 2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Bull Run near Manassas Park
1Jul 22, 201820.20+8.20Moderate—
2Mar 22, 201916.72+4.72Minor—
3Jan 10, 202416.51+4.51Minor—
4Dec 16, 201815.63+3.63Minor—
5Aug 1, 201815.10+3.10Minor—
6Dec 23, 202214.82+2.82Minor—
7Sep 28, 201814.64+2.64Minor—
8Jul 26, 201814.23+2.23Minor—
9Apr 13, 202014.04+2.04Minor—
10May 6, 201913.55+1.55Minor—
11Aug 22, 201813.54+1.54Minor—
12Nov 25, 201813.48+1.48Minor—
13Jan 25, 201913.48+1.48Minor—
14Jan 28, 202413.00+1.00Minor—
15Jan 20, 201912.62+0.62Minor—
16Jan 25, 202012.51+0.51Minor—
17May 19, 201812.44+0.44Minor—
18Jul 13, 202512.29+0.29Minor—
19Nov 16, 201812.23+0.23Minor—
20Nov 1, 201912.12+0.12Minor—

Other gauges in Fairfax County

Flood gauges in Fairfax County
Woodburn Road / Strathmeade Springs251.5258.68 ft, Jul 13, 20250
Annandale9.516.32 ft, Sep 8, 20113
Huntington - Metro Bridge11.012.92 ft, Sep 9, 20110
McLean9.010.54 ft, Dec 25, 20220
Browns Mill Road / Wolf Trap195.0196.37 ft, Jul 13, 20250
Great Falls11.021.40 ft, Jun 22, 19721
Chantilly9.09.21 ft, Sep 8, 20110
Fairview Lake318.0318.47 ft, Sep 8, 20110
New Alexandria Storm Water Pumping Station - Downstream5.57.51 ft, Jul 8, 20191
New Alexandria Tide Gate5.56.19 ft, Oct 29, 20210

Fairfax County: every hazard · River floods across the country · Virginia

NOAA National Water Prediction Service, gauge MPBV2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.