Rivers in Maine

Penobscot River at Eddington

Penobscot County, MaineNWS EDDM1USGS 01036390Caribou office

Below flood stage
2.09ftStage

Observed Tue, Sep 22, 11:30 AM EDT

Flood stage
18.00 ft
Record crest
23.53 ft1987

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood23.00 ft
Moderate flood21.00 ft
Minor flood18.00 ft
Action16.00 ft
  1. 25.00 ftComparable to the FEMA 0.2 percent flood level. A large portion of the Penobscot River Valley underwater. Flood waters reach Main St in Old Town with significant impacts to Water Street properties. Down Street on Indian Island flooded near West Street cutting off access south. Significant flooding in Milford with access in and out of the area on Route 2 cut off. State Route 116 near Tree Farm Road in Old Town flooded.
  2. 23.00 ftFlood inundation near the FEMA 1 percent flood hazard level. Record flooding similar to the Flood of 1987. Floodwaters breach the railroad tracks in Old Town, flooding portions of Water Street. Lower portions of French Island including Bodwell St and River St inundated. Significant flooding along Main St in Bradley depending on backwater and flows from the Otter Stream. Wabanaki Way on Indian Isolated flooded in multiple locations.
  3. 22.00 ftSignificant inundation of low lying lands along the river. Potential for greater impacts in the upper portion of the reach around Old Town with large contributions from the Stillwater River. The backyards of properties north of North Main St in Brewer inundated with some impacts to outbuildings possible.
  4. 21.00 ftBackwater effects from the Penobscot can cause flooding at the confluence of the Otter and Great Works Streams in Bradley, flooding portions of Route 178.
  5. 18.00 ftMinor lowland flooding occurs. Swiftly moving water can pose an imminent threat to life.
  6. 16.00 ftRiver approaches bankfull.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.

Crest history

12 crests on NOAA’s list since 1987.

#DateStage
1April 3, 198723.53 ft
2May 1, 200819.57 ft
3April 30, 200518.72 ft
4January 14, 201818.30 ft
5April 18, 201417.93 ft
6January 13, 201417.57 ft
7December 15, 201017.30 ft
8December 21, 202317.13 ft
9April 23, 201916.75 ft
10April 8, 200916.61 ft
11April 15, 202015.27 ft
12December 3, 202014.69 ft

Most recent crests

  • December 21, 2023: 17.13 ft
  • December 3, 2020: 14.69 ft
  • April 15, 2020: 15.27 ft
  • April 23, 2019: 16.75 ft
  • January 14, 2018: 18.30 ft
  • April 18, 2014: 17.93 ft
  • January 13, 2014: 17.57 ft
  • December 15, 2010: 17.30 ft
  • April 8, 2009: 16.61 ft
  • May 1, 2008: 19.57 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Northeast River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Stage may be affected by ice. Stage may be affected by ice.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.