Sudbury River at Saxonville, MA
River level and flood forecast · Middlesex County
The river is 4.5 ft below flood stage (10 ft).
Forecast to fall to 5.2 ft by Thu, Oct 15, 8 AM.
Flow: 125 cubic feet per second (USGS).
Higher than normal for October 13.
Usual for October 13: 23 to 114 cubic feet per second (the middle half of 47 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.
Get flood alerts for this river
An email when the National Weather Service forecasts Sudbury River at Saxonville to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 13 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 10 ft |
| Action stage | 8.5 ft |
| Record crest (March 31, 2010) | 13.99 ft |
What floods at each level
From the National Weather Service, highest first.
- 15 ftSignificant 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.
- 13.5 ftSignificant 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.
- 12.5 ftFlooding 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 ftFlooding 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 ftFlooding 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 ftFlooding will affect low lying areas along the river in Wayland, including a portion of Shore Road and Pelham Island Road near Heards Pond.
Highest crests on record
- 13.99 ft — March 31, 2010
- 13.47 ft — April 8, 1987
- 13.3 ft — June 7, 1982
- 12.92 ft — March 16, 2010
- 12.61 ft — March 23, 2001
Recent crests: 10.07 ft (April 4, 2024) · 11.34 ft (January 13, 2024) · 11.72 ft (January 10, 2024) · 11.27 ft (December 19, 2023) · 11.27 ft (December 19, 2023)
Highest flow on record
2,570 cubic feet per second — March 31, 2010. From the USGS's yearly peaks since 1980.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SAXM3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.