Sudbury River at Saxonville water level

Name: Sudbury River at Saxonville 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, Sudbury River, Massachusetts, United States

Directions

Below flood stage

Water level

4.86ft Down 0.11 ft over the last 24 hours

Measured Oct 19, 2026, 12:15 AM EDT (1 hour ago)

Flow: 63.2 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 4.80 ft by Monday, October 19 at 02:00 PM. Issued Sunday, October 18 at 11:08 AM by NOAA National Weather Service.

What this means

Water levels are unremarkable at Sudbury River at Saxonville, where the gauge shows 4.86 ft.

It is 5.14 ft below the flood stage of 10.00 ft.

It is still going down, by 0.11 ft over the past 24 hours. The forecast expects the river to fall to 4.80 ft by Monday, October 19 at 02:00 PM. The 30-day range is 4.86 ft – 6.45 ft.

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

Key numbers

Highest on record: 13.99 ftMarch 31, 2010
Forecast peak: 4.90 ftSunday, October 18 at 08:00 PM

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 10.00 ft.

What happens at each level

15.00 ft: Significant flooding occurs along the river, especially in Wayland and Concord. In Wayland portions of Route 20 both west and east bound as well as Route 27, Old Sudbury Road, will be impacted. In Concord Nashawtuc Road, Sudbury Road and Route 117 will be heavily impacted. This is a serious, potentially life threatening situation. Follow the directions of local officials if you are asked to evacuate. Do not go sightseeing and stay away from river banks which can give way due to erosion.
13.50 ft: Significant flooding occurs along the river, espeically in Wayland and Concord. In Wayland, portions of Route 20 both west and east bound as well as Route 27, Old Sudbury Road, will be impacted from Glezen Lane to the Sudbury town line. In Concord Nashawtuc Road, Sudbury Road and Route 117 will be heavily impacted. Should evacuation be required, do so immediately. Follow the directions of emergency management officials. Know alternate routes for travel, and stay away from flooded areas.
12.50 ft: Flooding impacts portions of Route 27, Old Sudbury Road, in Wayland as well as Route 20 both west and east bound at Route 27. Portions of Route 27 will have up to 12 inches of water. Other low lying areas in Wayland will experience flooding including Pelham Island Road and Shore Drive near Stonebridge Road. Flood waters will be impacting portions of Nashawtuc Road, Sudbury Road and Route 117 in Concord.
12.00 ft: Flooding affects low lying areas of Wayland, including Pelham Island Road near Heards Pond. Shore Drive near Stonebridge Road will experience some flooding as well as Route 20 eastbound at Route 27. Flood waters will begin to impact portions of Nashawtuc Road, Sudbury Road and Route 117 in Concord.
11.00 ft: Flooding will affect portions of Shore and Pelham Island Roads as well as River Road in Wayland. Flooding will also begin to impact Route 20 at Route 27. Other low lying areas along the river will experience flooding.
10.00 ft: Flooding will affect low lying areas along the river in Wayland, including a portion of Shore Road and Pelham Island Road near Heards Pond.
4.86 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	13.99 ft	March 31, 2010
2	13.47 ft	April 8, 1987
3	13.30 ft	June 7, 1982
4	12.92 ft	March 16, 2010
5	12.61 ft	March 23, 2001
6	12.04 ft	October 15, 2005
7	11.98 ft	June 3, 1984
8	11.97 ft	April 1, 1993
9	11.72 ft	January 10, 2024
10	11.50 ft	December 12, 2008

Weather at the gauge

The forecast is not available right now.

Sunrise 07:04 AM Sunset 05:59 PM Daylight 10 hr, 55 min First quarter 56%

Map

Other gauges on the Sudbury River

Gauge	Level	Compared with normal	24 hours	Distance
Sudbury River at AshlandRiver gauge, Sudbury River	32.3 cfs	Normal	−3.7 cfs	5.4 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Cochituate Brook below Lake Cochituate at FraminghamRiver gauge, Cochituate Brook	17.7 cfs	Normal	−2.5 cfs	1.0 mi
Stony Brook at Viles Street, near WestonRiver gauge, Stony Brook	2.2 cfs	Low	−0.3 cfs	7 mi
Stony Brook Reservoir, Unnamed Tributary 1, near WestonRiver gauge, Stony Brook Reservoir, Unnamed Tributary 1	0.4 cfs	Normal	−0.1 cfs	7 mi
Stony Brook Reservoir at Dam near WalthamReservoir, Stony Brook Reservoir	2.0 cfs	Normal	+0.1 cfs	7 mi
Stony Brook at RT 20 at WalthamRiver gauge, Stony Brook	8.9 cfs	Low	−1.6 cfs	7 mi
Trout Brook at DoverRiver gauge, Trout Brook	1.6 cfs	Normal	−0.5 cfs	7 mi
Stony Brook, Unnamed Tributary 1, near WalthamRiver gauge, Stony Brook, Unnamed Tributary 1	0.4 cfs	Normal	±0	7 mi
Assabet River at MaynardRiver gauge, Assabet River	2.32 ft	Below flood stage	−0.10 ft	8 mi

Questions and answers

What is flood stage for the Sudbury River at Saxonville?

The official flood stage is 10.00 ft. The level is currently 5.14 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 Sudbury River at Saxonville today?

On Oct 19, 2026, 12:15 AM EDT, the water level was 4.86 ft. Down 0.11 ft over the last 24 hours.

Is Sudbury River at Saxonville rising or falling?

Down 0.11 ft over the last 24 hours.

Is the level of Sudbury River at Saxonville normal?

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

What is the highest water level ever recorded at Sudbury River at Saxonville?

The highest level on record is 13.99 ft on March 31, 2010.

Is Sudbury River at Saxonville expected to rise?

The forecast expects the river to fall to 4.80 ft by Monday, October 19 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01098530 (Agency page)
Coordinates: 42.32537, -71.39756 (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	4.86 ft	2026-10-19 04:15	Provisional
Flow	63.2 cfs	2026-10-19 04:15	Provisional

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How to cite

U.S. Geological Survey: Sudbury River at Saxonville (usgs:01098530). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/massachusetts/sudbury-river-at-saxonville

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