LOCATION--Lat 42o21'44", long
71o04'43", Suffolk County, Hydrologic Unit
01090001, on left bank, 100 ft downstream from Longfellow Bridge, at
intersection of Broad Canal and First St. Bridge, Cambridge, MA..
DRAINAGE AREA--309 mi2, excludes 23.6 mi2
drained by Stony Brook, from which flow is diverted for municipal
supply for Cambridge.
PERIOD OF RECORD--January 2007 to current year.
GAGE--Data Collection Platform with telephone telemeter.
DATUM--Datum of gages are from the Massachusetts Metropolitan
District Commission base, which is 105.62 ft higher than NGVD
1929.
REMARKS--Stage may be affected by operation of the New Charles
River Dam about 1 mile downstream.
COOPERATION BY--Massachusetts Department
of Conservation and Recreation, Division of Planning and
Engineering