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USGS 01403150 West Branch Middle Brook near Martinsville NJ

PROVISIONAL DATA SUBJECT TO REVISION

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SURFACE-WATER RECORDS

LOCATION.--Lat 40°36'44", long 74°35'27" referenced to North American Datum of 1983, Bridgewater Township, Somerset County, NJ, Hydrologic Unit 02030105, on left bank 150 ft upstream from bridge on Crim Road, 1.4 mi northwest of Martinsville, and 1.8 mi upstream from confluence with East Branch Middle Brook.
DRAINAGE AREA.--1.99 mi2.
PERIOD OF RECORD.--Continuous-record discharge station June 1979 to current year.
REVISED RECORDS.--WDR NJ-91-1: 1990. WDR NJ-96-1: 1980-94 (P), WDR NJ-99-1: 1990 (M), 1997 (M).
GAGE.--Water-stage and precipitation recorder with telemetry. Datum of gage is 240.48 ft above NGVD of 1929 (levels by Somerset County).
REMARKS.--Records fair, except for estimated discharges and discharges below 1 ft3/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,510 ft3/s, Aug 28, 2011, gage height 9.35 ft; minimum discharge, 0.00 ft3/s, Sep 19, 1980.

Peak Flood Chart

Gage Photo

National Weather Service flood stage for this gage is 6 ft.

Rain gage data is available from this location at this link.

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
  
1981-05-01  2021-09-25
2007-10-01  2021-09-25







 (7)
 

  -- or --

 


 

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


Discharge, cubic feet per second

Most recent instantaneous value: 1.18 09-25-2021   09:55 EDT
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Daily discharge, cubic feet per second -- statistics for Sep 25 based on 41 water years of record more
Min
(1980)
25th
percen-
tile
Median 75th
percen-
tile
Most Recent
Instantaneous
Value Sep 25
Mean Max
(1991)
0.00 0.15 0.29 0.57 1.18 2.8 77.0


Gage height, feet

Most recent instantaneous value: 2.20 09-25-2021   09:55 EDT
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