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Monocacy River at Bridgeport

Highest listed crest 25.42 ftFlood stage 13.0 ft78 crests since 1942

The Monocacy River at Bridgeport crested at major flood stage 1 time among the 78 crests the National Weather Service lists from 1942 to 2024. The highest, 25.42 ft on June 19, 1996, was major flooding, 12.42 feet above flood stage. 1 other gauge on the Monocacy River crested above flood stage within a week of it.

The gauge

Highest listed crest
25.42 ft
June 19, 1996; 24,400 cubic feet per second
Flood stage
13.0 ft
Major flooding from 25.0 ft
Crests at major
1
32nd of 108 gauges in Maryland
Most recent flood crest
January 10, 2024
15.99 ft, minor flooding
Location
Frederick County
Near Westminster (13.9 mi)

Flood stages

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

Flood categories, Monocacy River at Bridgeport
Action stage11.06Mar 30, 2001The level at which the NWS or its partners begin to take action
Flood stage (minor)13.069Jan 10, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage21.02Oct 9, 1976Some inundation of structures and roads near the stream
Major flood stage25.01Jun 19, 1996Extensive inundation of structures and roads

Every listed crest

78 crests from 1942 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Monocacy River at Bridgeport, 1942 to 2024 1015202530ft Flood stage 13.0 ftMajor 25.0 ft Aug 14, 1942: 13.92 ft, minor flooding; 8,830 cubic feet per secondMay 21, 1943: 20.53 ft, minor flooding; 15,000 cubic feet per secondNov 9, 1943: 18.10 ft, minor flooding; 12,400 cubic feet per secondNov 28, 1945: 15.33 ft, minor flooding; 9,600 cubic feet per secondJun 2, 1946: 16.01 ft, minor flooding; 11,300 cubic feet per secondJul 18, 1949: 14.12 ft, minor flooding; 8,920 cubic feet per secondDec 4, 1950: 15.52 ft, minor flooding; 10,600 cubic feet per secondMar 11, 1952: 16.15 ft, minor flooding; 11,600 cubic feet per secondNov 22, 1952: 14.36 ft, minor flooding; 9,230 cubic feet per secondMar 22, 1955: 13.66 ft, minor flooding; 8,390 cubic feet per secondDec 21, 1957: 14.30 ft, minor flooding; 9,160 cubic feet per secondMar 5, 1965: 15.07 ft, minor flooding; 10,100 cubic feet per secondSep 15, 1966: 15.20 ft, minor flooding; 10,300 cubic feet per secondMar 7, 1967: 14.65 ft, minor flooding; 9,580 cubic feet per secondJul 10, 1970: 17.43 ft, minor flooding; 13,200 cubic feet per secondJun 22, 1972: 24.05 ft, moderate flooding; 21,300 cubic feet per secondSep 26, 1975: 20.14 ft, minor flooding; 13,600 cubic feet per secondNov 12, 1975: 14.05 ft, minor flooding; 6,440 cubic feet per secondOct 9, 1976: 23.18 ft, moderate flooding; 19,200 cubic feet per secondJan 26, 1978: 14.08 ft, minor flooding; 6,460 cubic feet per secondJan 24, 1979: 15.96 ft, minor flooding; 8,240 cubic feet per secondSep 6, 1979: 17.41 ft, minor flooding; 13,600 cubic feet per secondMar 22, 1980: 14.66 ft, minor flooding; 9,850 cubic feet per secondApr 10, 1983: 14.81 ft, minor flooding; 10,000 cubic feet per secondFeb 14, 1984: 16.07 ft, minor flooding; 11,700 cubic feet per secondFeb 12, 1985: 14.76 ft, minor flooding; 9,970 cubic feet per secondNov 29, 1987: 16.85 ft, minor flooding; 12,800 cubic feet per secondJun 23, 1989: 14.74 ft, minor flooding; 9,950 cubic feet per secondJan 30, 1990: 13.61 ft, minor flooding; 8,550 cubic feet per secondOct 23, 1990: 13.90 ft, minor flooding; 8,900 cubic feet per secondNov 23, 1992: 15.92 ft, minor flooding; 10,600 cubic feet per secondNov 28, 1993: 18.38 ft, minor flooding; 15,000 cubic feet per secondDec 5, 1993: 17.27 ft, minor flooding; 13,400 cubic feet per secondMar 22, 1994: 13.76 ft, minor flooding; 6,340 cubic feet per secondMar 27, 1994: 12.74 ft, action stage; 7,540 cubic feet per secondJan 20, 1995: 15.54 ft, minor flooding; 11,000 cubic feet per secondJun 26, 1995: 12.05 ft, action stage; 6,770 cubic feet per secondJan 19, 1996: 19.24 ft, minor flooding; 16,300 cubic feet per secondJan 27, 1996: 14.07 ft, minor flooding; 9,110 cubic feet per secondJun 19, 1996: 25.42 ft, major flooding; 24,400 cubic feet per secondSep 7, 1996: 16.99 ft, minor flooding; 11,900 cubic feet per secondOct 19, 1996: 14.02 ft, minor flooding; 8,330 cubic feet per secondNov 19, 1996: 12.61 ft, action stage; 6,830 cubic feet per secondDec 2, 1996: 12.88 ft, action stage; 7,110 cubic feet per secondDec 13, 1996: 14.56 ft, minor flooding; 8,930 cubic feet per secondJan 8, 1998: 15.38 ft, minor flooding; 9,890 cubic feet per secondFeb 18, 1998: 13.73 ft, minor flooding; 8,010 cubic feet per secondMar 21, 1998: 14.22 ft, minor flooding; 8,550 cubic feet per secondSep 30, 1999: 12.11 ft, action stage; 6,330 cubic feet per secondMar 22, 2000: 13.53 ft, minor flooding; 7,790 cubic feet per secondDec 17, 2000: 14.41 ft, minor flooding; 8,760 cubic feet per secondMar 30, 2001: 12.05 ft, action stage; 6,270 cubic feet per secondSep 23, 2003: 16.00 ft, minor flooding; 10,600 cubic feet per secondDec 11, 2003: 16.69 ft, minor flooding; 11,500 cubic feet per secondApr 2, 2005: 14.61 ft, minor flooding; 8,990 cubic feet per secondJun 28, 2006: 14.60 ft, minor flooding; 8,980 cubic feet per secondMar 2, 2007: 13.80 ft, minor flooding; 8,600 cubic feet per secondDec 12, 2008: 14.80 ft, minor flooding; 9,730 cubic feet per secondJan 25, 2010: 15.95 ft, minor flooding; 11,100 cubic feet per secondMar 7, 2011: 13.68 ft, minor floodingMar 11, 2011: 13.32 ft, minor floodingApr 17, 2011: 20.47 ft, minor flooding; 17,000 cubic feet per secondSep 8, 2011: 14.83 ft, minor floodingNov 23, 2011: 15.40 ft, minor flooding; 10,400 cubic feet per secondOct 30, 2012: 16.25 ft, minor flooding; 11,110 cubic feet per secondOct 12, 2013: 13.70 ft, minor flooding; 9,150 cubic feet per secondApr 30, 2014: 14.59 ft, minor flooding; 10,190 cubic feet per secondMay 16, 2014: 15.55 ft, minor flooding; 11,330 cubic feet per secondJun 28, 2015: 15.78 ft, minor flooding; 11,859 cubic feet per secondFeb 25, 2016: 13.63 ft, minor flooding; 9,344 cubic feet per secondJul 22, 2018: 15.33 ft, minor flooding; 10,910 cubic feet per secondNov 1, 2019: 13.19 ft, minor flooding; 8,181 cubic feet per secondMay 1, 2020: 14.06 ft, minor flooding; 9,223 cubic feet per secondSep 2, 2021: 19.04 ft, minor flooding; 14,800 cubic feet per secondSep 23, 2021: 16.53 ft, minor flooding; 12,500 cubic feet per secondMay 7, 2022: 13.89 ft, minor flooding; 9,257 cubic feet per secondDec 23, 2022: 13.41 ft, minor flooding; 8,707 cubic feet per secondJan 10, 2024: 15.99 ft, minor flooding; 11,786 cubic feet per second Highest, 25.42 ft, Jun 19, 1996 1960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Monocacy River at Bridgeport 1940s: 6 1950s: 5 1960s: 3 1970s: 8 1980s: 6 1990s: 16 16 2000s: 8 2010s: 14 2020s: 6 1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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.
  3. 1 crest measured on an earlier gauge datum is left out: 25.00 ft on Aug 24, 1933.

Highest crests

The 50 highest of 78 listed crests.

Highest listed crests, Monocacy River at Bridgeport
1Jun 19, 199625.42+12.42Major24,400
2Jun 22, 197224.05+11.05Moderate21,300
3Oct 9, 197623.18+10.18Moderate19,200
4May 21, 194320.53+7.53Minor15,000
5Apr 17, 201120.47+7.47Minor17,000
6Sep 26, 197520.14+7.14Minor13,600
7Jan 19, 199619.24+6.24Minor16,300
8Sep 2, 202119.04+6.04Minor14,800
9Nov 28, 199318.38+5.38Minor15,000
10Nov 9, 194318.10+5.10Minor12,400
11Jul 10, 197017.43+4.43Minor13,200
12Sep 6, 197917.41+4.41Minor13,600
13Dec 5, 199317.27+4.27Minor13,400
14Sep 7, 199616.99+3.99Minor11,900
15Nov 29, 198716.85+3.85Minor12,800
16Dec 11, 200316.69+3.69Minor11,500
17Sep 23, 202116.53+3.53Minor12,500
18Oct 30, 201216.25+3.25Minor11,110
19Mar 11, 195216.15+3.15Minor11,600
20Feb 14, 198416.07+3.07Minor11,700
21Jun 2, 194616.01+3.01Minor11,300
22Sep 23, 200316.00+3.00Minor10,600
23Jan 10, 202415.99+2.99Minor11,786
24Jan 24, 197915.96+2.96Minor8,240
25Jan 25, 201015.95+2.95Minor11,100
26Nov 23, 199215.92+2.92Minor10,600
27Jun 28, 201515.78+2.78Minor11,859
28May 16, 201415.55+2.55Minor11,330
29Jan 20, 199515.54+2.54Minor11,000
30Dec 4, 195015.52+2.52Minor10,600
31Nov 23, 201115.40+2.40Minor10,400
32Jan 8, 199815.38+2.38Minor9,890
33Nov 28, 194515.33+2.33Minor9,600
34Jul 22, 201815.33+2.33Minor10,910
35Sep 15, 196615.20+2.20Minor10,300
36Mar 5, 196515.07+2.07Minor10,100
37Sep 8, 201114.83+1.83Minor—
38Apr 10, 198314.81+1.81Minor10,000
39Dec 12, 200814.80+1.80Minor9,730
40Feb 12, 198514.76+1.76Minor9,970
41Jun 23, 198914.74+1.74Minor9,950
42Mar 22, 198014.66+1.66Minor9,850
43Mar 7, 196714.65+1.65Minor9,580
44Apr 2, 200514.61+1.61Minor8,990
45Jun 28, 200614.60+1.60Minor8,980
46Apr 30, 201414.59+1.59Minor10,190
47Dec 13, 199614.56+1.56Minor8,930
48Dec 17, 200014.41+1.41Minor8,760
49Nov 22, 195214.36+1.36Minor9,230
50Dec 21, 195714.30+1.30Minor9,160

The worst floods along the Monocacy River

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

June 19, 1996: 25.42 ft here, major flooding

June 22, 1972: 24.05 ft here, moderate flooding

October 9, 1976: 23.18 ft here, moderate flooding

Gauges on the Monocacy River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Monocacy River
Bridgeport this gaugeMD13.025.42 ft, Jun 19, 19961
Monocacy Blvd. in FrederickMD17.825.86 ft, Sep 2, 20216
Frederick at Interstate 70MD15.035.90 ft, Jun 23, 197221

Other gauges in Frederick County

Flood gauges in Frederick County
Park Mills11.022.10 ft, Jun 21, 19721
Monocacy Blvd. in Frederick17.825.86 ft, Sep 2, 20216
Frederick at Interstate 7015.035.90 ft, Jun 23, 197221
Point of Rocks16.041.03 ft, Mar 19, 193614

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

NOAA National Water Prediction Service, gauge BDGM2, 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.