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Patuxent River at Solomons Island (IN MLLW)

Highest listed crest 4.82 ftFlood stage 3.0 ft22 crests since 1955

The Patuxent River at Solomons Island (IN MLLW) crested above flood stage 20 times among the 22 crests the National Weather Service lists from 1955 to 2025. The highest, 4.82 ft on October 29, 2021, was moderate flooding, 1.82 feet above flood stage.

The gauge

Highest listed crest
4.82 ft
October 29, 2021
Flood stage
3.0 ft
Major flooding from 5.0 ft
Crests at major
0
20 above flood stage
Most recent flood crest
October 30, 2025
4.07 ft, moderate flooding
Location
Calvert County
Maryland
Identifiers
NWS SLIM2
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, Patuxent River at Solomons Island (IN MLLW)
Action stage2.52Nov 5, 2017The level at which the NWS or its partners begin to take action
Flood stage (minor)3.08Apr 30, 2020Minimal or no property damage, but possibly some public threat
Moderate flood stage4.012Oct 30, 2025Some inundation of structures and roads near the stream
Major flood stage5.00—Extensive inundation of structures and roads

Every listed crest

22 crests from 1955 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Patuxent River at Solomons Island (IN MLLW), 1955 to 2025 2.533.544.55ft Flood stage 3.0 ftMajor 5.0 ft Aug 13, 1955: 4.25 ft, moderate floodingMar 8, 1962: 4.25 ft, moderate floodingNov 4, 1985: 4.15 ft, moderate floodingSep 7, 1996: 4.20 ft, moderate floodingSep 19, 2003: 4.45 ft, moderate floodingSep 1, 2006: 4.41 ft, moderate floodingMay 12, 2008: 4.03 ft, moderate floodingApr 17, 2011: 4.08 ft, moderate floodingMay 1, 2014: 3.83 ft, minor floodingOct 5, 2015: 3.81 ft, minor floodingSep 21, 2017: 3.29 ft, minor floodingOct 13, 2017: 3.29 ft, minor floodingOct 24, 2017: 2.85 ft, action stageNov 5, 2017: 2.76 ft, action stageNov 9, 2017: 3.16 ft, minor floodingMar 7, 2018: 4.07 ft, moderate floodingApr 16, 2018: 3.43 ft, minor floodingNov 26, 2018: 3.39 ft, minor floodingOct 12, 2019: 4.25 ft, moderate floodingApr 30, 2020: 3.65 ft, minor floodingOct 29, 2021: 4.82 ft, moderate floodingOct 30, 2025: 4.07 ft, moderate flooding Highest, 4.82 ft, Oct 29, 2021 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Patuxent River at Solomons Island (IN MLLW) 1950s: 1 1960s: 1 1970s: 0 1980s: 1 1990s: 1 2000s: 3 2010s: 10 10 2020s: 3 1950s1960s1970s1980s1990s2000s2010s2020s
  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, Patuxent River at Solomons Island (IN MLLW)
1Oct 29, 20214.82+1.82Moderate—
2Sep 19, 20034.45+1.45Moderate—
3Sep 1, 20064.41+1.41Moderate—
4Aug 13, 19554.25+1.25Moderate—
5Mar 8, 19624.25+1.25Moderate—
6Oct 12, 20194.25+1.25Moderate—
7Sep 7, 19964.20+1.20Moderate—
8Nov 4, 19854.15+1.15Moderate—
9Apr 17, 20114.08+1.08Moderate—
10Mar 7, 20184.07+1.07Moderate—
11Oct 30, 20254.07+1.07Moderate—
12May 12, 20084.03+1.03Moderate—
13May 1, 20143.83+0.83Minor—
14Oct 5, 20153.81+0.81Minor—
15Apr 30, 20203.65+0.65Minor—
16Apr 16, 20183.43+0.43Minor—
17Nov 26, 20183.39+0.39Minor—
18Sep 21, 20173.29+0.29Minor—
19Oct 13, 20173.29+0.29Minor—
20Nov 9, 20173.16+0.16Minor—
21Oct 24, 20172.85−0.15Action—
22Nov 5, 20172.76−0.24Action—

The worst floods along the Patuxent River

For this gauge's highest crests, the other gauges on the Patuxent River that crested above flood stage within a week.

August 13, 1955: 4.25 ft here, moderate flooding

Gauges on the Patuxent River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Patuxent River
Solomons Island (IN MLLW) this gaugeMD3.04.82 ft, Oct 29, 20210
Brighton DamMD9.011.88 ft, Jan 31, 20130
Duckett Dam near LaurelMD9.525.00 ft, Jun 22, 19720
BowieMD19.027.90 ft, Jun 22, 19720
UnityMD8.018.60 ft, Sep 11, 19711

Calvert County: every hazard · River floods across the country · Maryland

NOAA National Water Prediction Service, gauge SLIM2, 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.