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St. John River at Nine Mile Bridge

Highest listed crest 23.00 ftFlood stage 15.0 ft20 crests since 1953

The St. John River at Nine Mile Bridge crested at major flood stage 1 time among the 20 crests the National Weather Service lists from 1953 to 2026. The highest, 23.00 ft on April 11, 1991, was major flooding, 8.00 feet above flood stage. 2 other gauges on the St. John River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
23.00 ft
April 11, 1991
Flood stage
15.0 ft
Major flooding from 23.0 ft
Crests at major
1
16th of 55 gauges in Maine
Most recent flood crest
April 16, 2019
19.07 ft, minor flooding
Location
Aroostook County
Maine

Flood stages

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

Flood categories, St. John River at Nine Mile Bridge
Action stage13.03Apr 6, 2020The level at which the NWS or its partners begin to take action
Flood stage (minor)15.07Apr 16, 2019Minimal or no property damage, but possibly some public threat
Moderate flood stage20.01Apr 2, 1976Some inundation of structures and roads near the stream
Major flood stage23.01Apr 11, 1991Extensive inundation of structures and roads

Every listed crest

20 crests from 1953 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the St. John River at Nine Mile Bridge, 1953 to 2026 510152025ft Flood stage 15.0 ftMajor 23.0 ft Mar 31, 1953: 15.78 ft, minor floodingDec 21, 1961: 14.26 ft, action stageMay 1, 1974: 12.63 ft, below flood stage; 44,400 cubic feet per secondApr 2, 1976: 20.00 ft, moderate floodingApr 11, 1991: 23.00 ft, major floodingApr 16, 1994: 18.80 ft, minor floodingApr 22, 1996: 15.15 ft, minor floodingApr 24, 2007: 15.88 ft, minor floodingApr 20, 2008: 14.76 ft, action stageApr 5, 2009: 18.14 ft, minor floodingApr 2, 2016: 19.44 ft, minor flooding; 13,000 cubic feet per secondApr 30, 2018: 11.46 ft, below flood stage; 41,300 cubic feet per secondApr 16, 2019: 19.07 ft, minor floodingApr 22, 2019: 12.34 ft, below flood stage; 47,700 cubic feet per secondApr 6, 2020: 14.34 ft, action stageMay 4, 2020: 8.06 ft, below flood stage; 20,600 cubic feet per secondApr 17, 2022: 9.75 ft, below flood stage; 30,200 cubic feet per secondApr 14, 2024: 9.02 ft, below flood stage; 25,900 cubic feet per secondApr 28, 2025: 7.78 ft, below flood stage; 19,200 cubic feet per secondApr 18, 2026: 9.70 ft, below flood stage; 29,900 cubic feet per second Highest, 23.00 ft, Apr 11, 1991 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, St. John River at Nine Mile Bridge 1950s: 1 1960s: 0 1970s: 1 1980s: 0 1990s: 3 3 2000s: 2 2010s: 2 2020s: 0 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, St. John River at Nine Mile Bridge
1Apr 11, 199123.00+8.00Major—
2Apr 2, 197620.00+5.00Moderate—
3Apr 2, 201619.44+4.44Minor13,000
4Apr 16, 201919.07+4.07Minor—
5Apr 16, 199418.80+3.80Minor—
6Apr 5, 200918.14+3.14Minor—
7Apr 24, 200715.88+0.88Minor—
8Mar 31, 195315.78+0.78Minor—
9Apr 22, 199615.15+0.15Minor—
10Apr 20, 200814.76−0.24Action—
11Apr 6, 202014.34−0.66Action—
12Dec 21, 196114.26−0.74Action—
13May 1, 197412.63−2.37Below flood stage44,400
14Apr 22, 201912.34−2.66Below flood stage47,700
15Apr 30, 201811.46−3.54Below flood stage41,300
16Apr 17, 20229.75−5.25Below flood stage30,200
17Apr 18, 20269.70−5.30Below flood stage29,900
18Apr 14, 20249.02−5.98Below flood stage25,900
19May 4, 20208.06−6.94Below flood stage20,600
20Apr 28, 20257.78−7.22Below flood stage19,200

The worst floods along the St. John River

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

April 11, 1991: 23.00 ft here, major flooding

  • DickeyME · Apr 9, 1991 · 37.89 ft · Major · its highest
  • Fort KentME · Apr 11, 1991 · 23.27 ft · Minor

April 16, 2019: 19.07 ft here, minor flooding

  • Fort KentME · Apr 23, 2019 · 23.39 ft · Minor

April 16, 1994: 18.80 ft here, minor flooding

  • Fort KentME · Apr 17, 1994 · 26.60 ft · Major

Gauges on the St. John River

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

Flood gauges on the St. John River
Nine Mile Bridge this gaugeME15.023.00 ft, Apr 11, 19911
DickeyME25.037.89 ft, Apr 9, 19911
Fort KentME22.530.07 ft, Apr 30, 20084

Other gauges in Aroostook County

Flood gauges in Aroostook County
Allagash15.019.78 ft, Apr 10, 19912
Masardis17.018.70 ft, Apr 9, 20090
Washburn14.021.14 ft, Apr 18, 20152
Depot Mountain13.515.62 ft, Apr 1, 19870
Fort Kent11.013.93 ft, Apr 30, 20081
Caribou9.511.38 ft, Apr 27, 20180
South Branch near Houlton8.011.04 ft, Apr 4, 20050
Houlton4.85.58 ft, Dec 14, 20100
Connors15.015.93 ft, May 1, 20080
Dickey25.037.89 ft, Apr 9, 19911
Fort Kent22.530.07 ft, Apr 30, 20084
Presque Isle7.58.34 ft, Apr 16, 20140
Reed Plantation10.010.27 ft, Apr 16, 20140

Aroostook County: every hazard · River floods across the country · Maine

NOAA National Water Prediction Service, gauge NINM1, 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.