LOCATION.--Lat 42° 17'16", long 72°
51'53", Hampshire County, Hydrologic Unit 01080206, on left bank at
Knightville, 0.2 mi downstream from Knightville Dam, 0.2 mi upstream from
Sykes Brook, 2.4 mi upstream from Middle branch, 3.5 mi north of
Huntington, and at mile 29.7.
DRAINAGE AREA.--161 mi2.
PERIOD OF RECORD.--Discharge: August 1909 to September 1990, October 1995
to current year.
Water-quality records: Water year 1953.
REVISED RECORDS.--WSP 415: 1909–12. WSP 1001: 1941–43. WSP 1231: 1910,
1912, 1913(M), 1914–15, 1916–19(M), 1921–23(M), 1925–27(M), 1929–33(M),
1935(M). WDR MA-RI-84-1: Drainage area.
GAGE.--Water-stage recorder. Concrete control since Dec. 20, 1940. Datum of
gage is 461.25 ft above National Geodetic Vertical Datum of 1929 (levels by
U.S. Army Corps of Engineers). Prior to Jan. 11, 1936, nonrecording gage at
site 0.5 mi upstream at different datum. Jan. 11, 1935, to May 20, 1940,
water-stage recorder at site 700 ft upstream at datum 10.57 ft higher. May 21
to Dec. 19, 1940, nonrecording gage at site 700 ft upstream at datum 18.75 ft
higher.
REMARKS.--Records good except those for estimated daily discharge, which
are fair. Flow regulated by Knightville reservoir since 1941. Telephone and
satellite gage-height telemeter at station.
COOPERATION BY.-- U.S. Army Corps of Engineers.
