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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2025
01403150 WEST BRANCH MIDDLE BROOK NEAR MARTINSVILLE, NJ
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.
REVISIONS HISTORY - WDR NJ-91-1: 1990. WDR NJ-96-1: 1980-94 (P), WDR NJ-99-1: 1990 (M), 1997 (M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - Continuous-record discharge station June 1979 to current year.
GAGE - Water-stage and precipitation recorder with telemetry. Datum of gage is 239.51 ft above NAVD of 1988 (from GNSS static survey).
REMARKS - Records fair, except for estimated discharges and discharges below 1 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,410 ft³/s, Sept. 01, 2021, gage height 11.47-ft from rating curve extended above 1610ft³/s; minimum discharge, 0.00 ft³/s, Sep 19, 1980.
