St. John River at Ninemile Bridge, Maine water level

Name: St. John River at Ninemile Bridge, Maine water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, St. John River, Maine, United States

Directions

Below flood stage

Water level

2.19ft Down 0.32 ft over the last 24 hours

Measured Oct 19, 2026, 03:00 PM EDT (1 hour ago)

Flow: 1,250 cfs

History

7 days

Water level Minor flood stage

What this means

The St. John River at Ninemile Bridge, Maine is at 2.19 ft, in the normal range.

It is 12.81 ft below the flood stage of 15.00 ft.

It has dropped 0.32 ft over the past 24 hours. In the last month it has stayed between 2.19 ft and 2.76 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 23.00 ftApril 11, 1991

Floating and fishing near St. John River at Ninemile Bridge, Maine

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 15.00 ft, 12.81 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

23.00 ft: Widespread flooding of trails and campgrounds along The St. John River from Moody Campground to Seven Islands and the Blanchette/Maibec Road Bridge. Additional widespread flooding of campgrounds from Priestly Rapids to the confluence of the Big Black River. Significant flooding of the low areas along the Daaquam Road upstream of the former Moody Bridge. Potential bridge washouts from the St. Juste Road downstream to the Maibec Road. Flooding similar to April 1991.
21.00 ft: The Daaquam and Realty Road is impassable in sections along the branch of the St. John River from Daaquam, Quebec border downstream to near the former Moody Bridge. Dangerous flows threaten the St. Juste Road crossing and structures near the Red Pine Grove Airfield.
20.00 ft: Several campgrounds in the North Woods flooded including Moody, Burntland Brook, Nine Mile, East Nine Mile, Connors Farm, Seven Island, Priestly, Simmons Farm, Basford Rips and Big Black.
15.00 ft: Minor flooding occurs in campgrounds between Burntland Brook to Priestly Rapids with backwater issues on small streams and creeks. Minor flooding near the Red Pines Grove Airfield area off Realty Road.
14.00 ft: Dangerous flows encroach on the Red Pine Grove Airfield and the nearby Red Pines Boat Launch off Realty Road, downstream of the former Moody Bridge.
13.00 ft: The river approaches bankfull. Dangerous flows threaten the bridge on Maibec Road and the Realty Road located upstream of the former Moody Bridge. Water will be nearing the edge of the St. Juste Road crossing, and additional low water crossings are becoming impassable.
2.19 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	23.00 ft	April 11, 1991
2	20.00 ft	April 2, 1976
3	19.44 ft	April 2, 2016
4	19.07 ft	April 16, 2019
5	18.80 ft	April 16, 1994
6	18.14 ft	April 5, 2009
7	15.88 ft	April 24, 2007
8	15.78 ft	March 31, 1953
9	15.15 ft	April 22, 1996
10	14.76 ft	April 20, 2008

Weather at the gauge

Rain in the last 3 days: 0.62 in. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 47° 26° – Wind 9 mph

19 Mon 56° 34° – Wind 13 mph

20 Tue 50° 33° – Wind 10 mph

21 Wed 51° 29° – Wind 4 mph

22 Thu 49° 32° – Wind 12 mph

23 Fri 39° 26° – Wind 13 mph

24 Sat 50° 26° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:03 AM Sunset 05:46 PM Daylight 10 hr, 44 min First quarter 62%

Map

Other gauges on the St. John River

Gauge	Level	Compared with normal	24 hours	Distance
St. John River at Dickey, MaineRiver gauge, St. John River	5.03 ft	Below flood stage	−0.19 ft	41 mi
St. John River below Fish R, near Fort Kent, MaineRiver gauge, St. John River	4.52 ft	Below flood stage	+0.05 ft	67 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Big Black River near Depot Mtn, MaineRiver gauge, Big Black River	3.84 ft	Below flood stage	−0.24 ft	13 mi
Allagash River near Allagash, MaineRiver gauge, Allagash River	2.35 ft	Below flood stage	−0.11 ft	39 mi
St. Francis River at Outlet of Glasier LakeRiver gauge, St. Francis River	0.69 m	Low	+0.01 m	81 km

Questions and answers

What is flood stage for the St. John River at Ninemile Bridge, Maine?

The official flood stage is 15.00 ft. The level is currently 12.81 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of St. John River at Ninemile Bridge, Maine today?

On Oct 19, 2026, 03:00 PM EDT, the water level was 2.19 ft. Down 0.32 ft over the last 24 hours.

Is St. John River at Ninemile Bridge, Maine rising or falling?

Down 0.32 ft over the last 24 hours.

Is the level of St. John River at Ninemile Bridge, Maine normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at St. John River at Ninemile Bridge, Maine?

The highest level on record is 23.00 ft on April 11, 1991.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01010000 (Agency page)
Coordinates: 46.70056, -69.71556 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	2.19 ft	2026-10-19 19:00	Provisional
Flow	1,250 cfs	2026-10-19 19:00	Provisional

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How to cite

U.S. Geological Survey: St. John River at Ninemile Bridge, Maine (usgs:01010000). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/maine/st-john-river-at-ninemile-bridge-maine

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer