Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins
Click to hide state-specific text


The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.

! We're replacing this page with a Next Generation Monitoring Location Page.
We're modernizing Water Data for the Nation delivery. Find out what this means for you. This page will be discontinued Jan.1, 2023.



Click to hidestation-specific text

LOCATION--Lat 42° 09’16", long 71° 08’47", Norfolk County, Hydrologic Unit 01090001, on right bank 100 ft downstream from Washington Street Bridge at Canton, 200 ft downstream from Forge Pond Dam, and 900 ft downstream from Massapoag Brook.
DRAINAGE AREA--27.2 mi2.
PERIOD OF RECORD--Discharge: October 1952 to current year.
Water-quality records: Water years 1959, 1967–68.
REVISED RECORDS--WSP 1901: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 79.40 ft above NAVD 1988, from Massachusetts Department of Public Works benchmark. Prior to May 12, 2020, datum of gage reported as 80.18 ft above NGVD 1929, from Massachusetts Department of Public Works benchmark.
REMARKS-- Flow regulated by Forge, Bolivar, Massapoag, and Reservoir Ponds, and other ponds upstream. Flow affected by diversions for municipal supply of Canton and Stoughton.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.

Boating safety tips
This station managed by the Northborough MA Field Office.

Available Parameters Available Period
1990-10-01  2022-07-05
2007-10-01  2022-07-05


  -- or --



Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 10.9 07-05-2022   03:00 EDT
Graph of  Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages

Daily discharge, cubic feet per second -- statistics for Jul 5 based on 69 water years of record more
Most Recent
Value Jul 5
Median Mean 75th
2.90 9.7 10.9 15 25 30 136

Gage height, feet

Most recent instantaneous value: 0.74 07-05-2022   03:00 EDT
Graph of  Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages