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LOCATION--Lat 42°26’50.5", long
71°08’18.9", Middlesex County, Hydrologic Unit 01090001, on
left bank, 0.3 mi downstream from Waterfield Street at
DRAINAGE AREA--Total above gage, 24.7 mi2; net above gage, 24.1 mi2, excludes 0.6 mi2 drained by Winchester North Reservoir.
PERIOD OF RECORD--April 1939 to current year. Streamgage temporarily relocated to Mt. Vernon Street from September 2011 to April 2014 during river channel improvements for flood mitigation at Mystic Valley Parkway.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 0.80 ft below NAVD 1988, estimated from digital map. From September 2011 to April 2014, when gage was temporarily relocated to Mt. Vernon Street, datum of gage was reported as 15 ft above NAVD 1988, estimated from digital map. Prior to September 2011, datum of gage reported as NGVD 1929, estimated from topographic map.
COOPERATION--Massachusetts Department of Conservation and Recreation, Division of Planning and Engineering.
|Median||Most Recent |
Value Oct 21