Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Antietam Creek near Waynesboro

Highest listed crest 12.33 ftFlood stage 6.5 ft25 crests since 1949

The Antietam Creek near Waynesboro crested at major flood stage 1 time among the 25 crests the National Weather Service lists from 1949 to 2021. The highest, 12.33 ft on June 22, 1972, was major flooding, 5.83 feet above flood stage. 1 other gauge on the Antietam Creek crested above flood stage within a week of it.

The gauge

Highest listed crest
12.33 ft
June 22, 1972; 5,430 cubic feet per second
Flood stage
6.5 ft
Major flooding from 12.0 ft
Crests at major
1
32nd of 108 gauges in Maryland
Most recent flood crest
May 16, 2014
9.28 ft, minor flooding
Location
Washington County
Near Waynesboro (2.8 mi), Hagerstown (8.2 mi)

Flood stages

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

Flood categories, Antietam Creek near Waynesboro
Action stage5.59Sep 23, 2021The level at which the NWS or its partners begin to take action
Flood stage (minor)6.511May 16, 2014Minimal or no property damage, but possibly some public threat
Moderate flood stage10.04Jun 27, 2006Some inundation of structures and roads near the stream
Major flood stage12.01Jun 22, 1972Extensive inundation of structures and roads

Every listed crest

25 crests from 1949 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Antietam Creek near Waynesboro, 1949 to 2021 468101214ft Flood stage 6.5 ftMajor 12.0 ft Jul 18, 1949: 7.48 ft, minor flooding; 1,200 cubic feet per secondNov 25, 1950: 8.55 ft, minor flooding; 1,490 cubic feet per secondSep 15, 1966: 6.02 ft, action stage; 1,140 cubic feet per secondMar 7, 1967: 6.15 ft, action stage; 1,200 cubic feet per secondJul 29, 1970: 7.87 ft, minor flooding; 2,040 cubic feet per secondFeb 13, 1971: 6.02 ft, action stage; 1,140 cubic feet per secondJun 22, 1972: 12.33 ft, major flooding; 5,430 cubic feet per secondMay 29, 1973: 6.51 ft, minor flooding; 1,460 cubic feet per secondApr 4, 1974: 6.28 ft, action stage; 1,350 cubic feet per secondSep 26, 1975: 11.70 ft, moderate flooding; 4,850 cubic feet per secondOct 18, 1975: 6.16 ft, action stage; 1,200 cubic feet per secondOct 9, 1976: 10.18 ft, moderate flooding; 3,650 cubic feet per secondMar 14, 1978: 6.76 ft, minor flooding; 1,500 cubic feet per secondJan 24, 1979: 10.20 ft, moderate flooding; 3,700 cubic feet per secondJun 13, 1981: 7.00 ft, minor flooding; 1,630 cubic feet per secondJun 27, 2006: 10.47 ft, moderate flooding; 3,940 cubic feet per secondMay 12, 2008: 6.44 ft, action stage; 2,020 cubic feet per secondMar 13, 2010: 7.48 ft, minor flooding; 2,500 cubic feet per secondApr 17, 2011: 7.53 ft, minor floodingApr 28, 2011: 7.65 ft, minor floodingOct 30, 2012: 8.17 ft, minor flooding; 2,817 cubic feet per secondMay 16, 2014: 9.28 ft, minor flooding; 3,339 cubic feet per secondMar 22, 2019: 5.96 ft, action stage; 1,280 cubic feet per secondSep 1, 2021: 6.28 ft, action stage; 1,320 cubic feet per secondSep 23, 2021: 5.95 ft, action stage; 1,200 cubic feet per second Highest, 12.33 ft, Jun 22, 1972 19501960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Antietam Creek near Waynesboro 1940s: 1 1950s: 1 1960s: 0 1970s: 7 7 1980s: 1 1990s: 0 2000s: 1 2010s: 5 2020s: 0 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.

Highest crests

Highest listed crests, Antietam Creek near Waynesboro
1Jun 22, 197212.33+5.83Major5,430
2Sep 26, 197511.70+5.20Moderate4,850
3Jun 27, 200610.47+3.97Moderate3,940
4Jan 24, 197910.20+3.70Moderate3,700
5Oct 9, 197610.18+3.68Moderate3,650
6May 16, 20149.28+2.78Minor3,339
7Nov 25, 19508.55+2.05Minor1,490
8Oct 30, 20128.17+1.67Minor2,817
9Jul 29, 19707.87+1.37Minor2,040
10Apr 28, 20117.65+1.15Minor—
11Apr 17, 20117.53+1.03Minor—
12Jul 18, 19497.48+0.98Minor1,200
13Mar 13, 20107.48+0.98Minor2,500
14Jun 13, 19817.00+0.50Minor1,630
15Mar 14, 19786.76+0.26Minor1,500
16May 29, 19736.51+0.01Minor1,460
17May 12, 20086.44−0.06Action2,020
18Apr 4, 19746.28−0.22Action1,350
19Sep 1, 20216.28−0.22Action1,320
20Oct 18, 19756.16−0.34Action1,200
21Mar 7, 19676.15−0.35Action1,200
22Sep 15, 19666.02−0.48Action1,140
23Feb 13, 19716.02−0.48Action1,140
24Mar 22, 20195.96−0.54Action1,280
25Sep 23, 20215.95−0.55Action1,200

The worst floods along the Antietam Creek

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

June 22, 1972: 12.33 ft here, major flooding

September 26, 1975: 11.70 ft here, moderate flooding

June 27, 2006: 10.47 ft here, moderate flooding

  • SharpsburgMD · Jun 28, 2006 · 10.85 ft · Moderate

Gauges on the Antietam Creek

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

Flood gauges on the Antietam Creek
Waynesboro this gaugeMD6.512.33 ft, Jun 22, 19721
SharpsburgMD8.016.73 ft, Jul 20, 19564

Other gauges in Washington County

Flood gauges in Washington County
Sharpsburg8.016.73 ft, Jul 20, 19564
Fairview10.024.50 ft, Jun 23, 19727
Pecktonville10.011.50 ft, May 14, 20250
Hancock25.047.60 ft, Mar 18, 19368
Harpers Ferry18.036.50 ft, Mar 19, 193614
Bellegrove7.512.44 ft, Jun 22, 19720

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

NOAA National Water Prediction Service, gauge WANP1, 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.