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


Page Loading - Please Wait...

Click to hideNews Bulletins
Click to hide state-specific text

ICE EFFECTS ON STREAMFLOW

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.



USGS 01179500 WESTFIELD RIVER AT KNIGHTVILLE, MA

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text

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--Data Collection Platform with satellite telemeter. 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-- Flow regulated by Knightville reservoir since 1941.
COOPERATION BY--U.S. Army Corps of Engineers

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

Available Parameters Available Period
All 3 Available Parameters for this site
  
00060 Discharge 1995-11-01  2018-09-21
00062 Elevation, reservoir 2015-09-22  2018-09-21
00065 Gage height 2007-10-01  2018-09-21

Graph
Graph w/ stats
Graph w/o stats
Graph w/ (up to 3) parms
Table
Tab-separated
Days  (7)
 

  -- or --
Begin date
 

End date
 

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


Discharge, cubic feet per second

Most recent instantaneous value: 500 09-21-2018   05:30 EDT
Graph of

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

?
 Add site numbers


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


Daily discharge, cubic feet per second -- statistics for Sep 21 based on 104 years of record more
Min
(1964)
25th
percen-
tile
Median 75th
percen-
tile
Mean Most Recent
Instantaneous
Value Sep 21
Max
(1938)
10.0 27 56 121 213 500 8000


Gage height, feet

Most recent instantaneous value: 4.04 09-21-2018   05:30 EDT
Graph of

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

?
 Add site numbers


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