PROVISIONAL DATA SUBJECT TO REVISION
LOCATION--Lat 42°19’31", long
71°23’53", Middlesex County, Hydrologic Unit 01070005, on
left bank at downstream side of new Danforth Street Bridge, at
Saxonville, 600 ft east of Elm Street, 700 ft downstream from
confluence with Lake Cochituate Outlet, and 0.7 mi downstream from
Saxonville Dam.
DRAINAGE AREA--106 mi2.
PERIOD OF RECORD--Discharge: November 1979 to current
year.
Water-quality records: Water years 1994–95.
GAGE--Data Collection Platform with satellite telemeter. Datum
of gage is 109.78 ft above NAVD 1988, from Massachusetts Department of
Public Works benchmark (Disk 1306). Prior to May 13, 2020, datum
reported as 110.55 ft above NGVD 1929, from Massachusetts Department of
Public Works benchmark (Disk 1306).
REMARKS--Flow regulated by reservoirs upstream and affected by
diversions and spill. Flow may be diverted as needed for emergency use
in MWRA metropolitan Boston service area.
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This gage is monitored in cooperation with the Massachusetts Department of Conservation and Recreation, Division of Water Supply Protection, Office of Watershed Management, with funding from the Massachusetts Water Resources Authority .
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Photo of Sudbury River looking Upstream. Photo of Sudbury River looking Downstream.
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Photo of Sudbury River looking Upstream
Summary of all available data for this site
Instantaneous-data availability statement
