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USGS 01390500 Saddle River at Ridgewood NJ


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During winter months, cold and ice may result in inaccurate real-time gage height and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.



LOCATION.--Lat 40°59'06", long 74°05'26" referenced to North American Datum of 1983, Ridgewood Village, Bergen County, NJ, Hydrologic Unit 02030103, on left bank 15 ft upstream from bridge on State Route 17 in Ridgewood and 2.8 mi upstream from Hohokus Brook.
DRAINAGE AREA.--21.6 mi².
PERIOD OF RECORD.--Continuous-record discharge station, October 1954 to September 1974, and October 1977 to current year. Annual maximum gage, water years 1975 to 1977.
REVISIONS HISTORY.--WDR NJ-74:1971. WDR US-2011:2010(M). WDR US-2012:2010(P).
GAGE.--Water-stage recorder with telemetry and crest-stage gage. Datum of gage is 71.74 ft above NGVD of 1929 (levels from New Jersey Geological Survey benchmark).
REMARKS.--Records fair, except for estimated discharges, which are poor. The flow past this station is affected by pumpage from wells.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,770 ft³/s, Aug 28, 2011, gage height, 11.42 ft; maximum gage height, 13.40 ft, Sep 16, 1999; minimum discharge, 0.00 ft³/s, Jul 27, 1999.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 6,800 ft³/s, July 23, 1945, on basis of slope-area measurement of peak flow at site 1.6 mi upstream, adjusted for change in drainage area.

Peak Flood Chart

Gage Photo

Flood Inundation Maps available for this gage.

National Weather Service flood stage for this gage is 5.0 ft.

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
1981-10-01  2022-08-19
2007-10-01  2022-08-19


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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: 3.89 08-19-2022   01:30 EDT
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Aug 19 based on 62 water years of record more
Most Recent
Value Aug 19
Median 75th
Mean Max
1.40 3.89 6.1 9.4 17 29 696

Gage height, feet

Most recent instantaneous value: 0.60 08-19-2022   01:30 EDT
Graph of  Gage height, feet

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