St. John River at Dickey, ME
River level and flood forecast · Aroostook County
The river is 21.2 ft below flood stage (25 ft).
Forecast to hold near 3.8 ft through Thu, Oct 15, 8 AM.
Flow: 429 cubic feet per second (USGS).
Much lower than normal for October 13.
Usual for October 13: 1,010 to 4,460 cubic feet per second (the middle half of 82 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts St. John River at Dickey to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 35 ft |
| Moderate flood stage | 30 ft |
| Flood stage | 25 ft |
| Action stage | 23.5 ft |
| Record crest (April 9, 1991) | 37.89 ft |
What floods at each level
From the National Weather Service, highest first.
- 35 ftWidespread catastrophic flooding of State Route 161 between Dickey Bridge and St. Francis. Numerous homes inundated from Big Rapids downstream to St. Francis. Significant inundation of structures in Allagash with combined backwater flooding from the Allagash River. Most campsites between Longs Rapids and Big Rapids inaccessible.
- 30 ftFlooding along State Route 161 near the Allagash Maine Forest Service Ranger Station due to backwater issues with the Allagash River. Moderate flooding impacting Route 161 near the Allagash and St Francis town line. Significant flooding at campsites between Longs Rapids and Dickey Bridge.
- 25 ftMinor flooding of low lying properties from Longs Rapids downstream to St. Francis. Backwater issues begins to cause minor flooding along the Little Black River near Walker Brook Road. Campsites between Castonia Farm to Poplar Island experience minor flooding.
- 23.5 ftRiver nearing bankfull and begins to threaten low lying campsites from Castonia Rapids downstream to Dickey Bridge.
Highest crests on record
- 37.89 ft — April 9, 1991
- 29.16 ft — April 30, 1974
- 28.93 ft — April 19, 2008
- 26.56 ft — April 17, 1984
- 24.29 ft — April 23, 2007
Recent crests: 11.19 ft (March 24, 2025) · 13.83 ft (April 14, 2024) · 19.43 ft (April 23, 2019) · 20.55 ft (April 16, 2019) · 20.16 ft (April 30, 2008)
Highest flow on record
104,000 cubic feet per second — April 30, 2008. From the USGS's yearly peaks since 1947.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (DICM1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.