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USGS 01103025 ALEWIFE BROOK NEAR ARLINGTON, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION

LOCATION--Lat 42o24'25", long 71o08'04", Middlesex County, Hydrologic Unit 01090001, on downstream side of Broadway Street bridge, in Arlington, Ma. 0.6 mi upstream from the mouth at the Mystic River.
DRAINAGE AREA--8.36 mi2.
PERIOD OF RECORD--August 2005 to current year. Intermittent discharge measurements, 1973-74, 1999-2000.
GAGE--Data Collection Platform with telephone telemeter. Datum of the gage is NAVD 1988, estimated from topographic map. Prior to May 21, 2020, datum of gage reported as 10 ft above NGVD 1929, estimated from topographic map.
REMARKS--Stage is occasionally affected by regulation of the Mystic River from gate changes and lock operations at Amelia Earhart Dam, located about 3.7 mi downstream from the mouth of Alewife Brook at the Mystic River.
COOPERATION BY--A-B-C Stormwater Flooding Board (Arlington, Belmont, Cambridge)

ICE EFFECTS ON STREAMFLOW During winter, ice formation in streams can cause stage and corresponding discharge values to appear higher than expected during periods of no precipitation. Ice effects from partial ice cover or shore ice may be minor, where stage and discharge appear to increase at night and decrease to base-line conditions around midday for one or more days. Major ice effects from complete ice cover appear as constantly increasing stage and discharge over several days during prolonged cold periods. Stage and discharge values for streams experiencing minor ice effects will continue to be displayed on the web to enable the user to estimate the approximate base-line discharges. Note that this method of estimation should only be used when no runoff occurs. During periods of major ice effects, display of discharge data on the web will be temporarily discontinued to prevent misuse of erroneous discharge data. The discharge record will resume when it is determined that ice conditions are no longer present. Display of stage data during periods of minor and major ice effects will continue to be displayed on the web. Daily mean discharges will be estimated for all periods of ice-effected discharges.

Photo of Alewife Brook gage

Boating safety tips
Available Parameters Available Period
  
2005-10-06  2021-11-28
2007-10-01  2021-11-28
2007-10-01  2021-11-28







 (7)
 

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


Discharge, cubic feet per second

Most recent instantaneous value: 8.08 11-28-2021   03:15 EST
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Daily discharge, cubic feet per second -- statistics for Nov 28 based on 15 water years of record more
Min
(2008)
25th
percen-
tile
Most Recent
Instantaneous
Value Nov 28
Median Mean 75th
percen-
tile
Max
(2019)
2.76 5.3 8.08 9.1 12 12 49.3


Gage height, feet

Most recent instantaneous value: 1.71 11-28-2021   03:15 EST
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Mean water velocity for discharge computation, feet per second

Most recent instantaneous value: 0.59 11-28-2021   03:15 EST
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