This station is operated in cooperation
U.S. Geological Survey
Village of Nyack
Lat 41°05'44", long 73°57'50"
referenced to North American Datum of 1983, Rockland County, NY,
Hydrologic Unit 02030103, on right bank 20 ft downstream from CSX
railroad bridge at West Nyack, 1,000 ft upstream from State Highway 59,
and 1.0 mi downstream from DeForest Lake.
PERIOD OF RECORD.--
December 1958 to current year.
WDR NY-90-1: Drainage area.
Water-stage recorder, stop-log control, and crest-stage
gage. Datum of gage is 53.50 ft above NGVD of 1929 (levels by
Hackensack Water Co.).
No estimated daily discharges. Records fair. Flow
regulated by DeForest Lake. Diversion from gaging station pool for
municipal supply for village of Nyack. Discharge given for this station
represents the flow of Hackensack River downstream from this diversion.
At flows greater than about 1,500 ft3
amounts of flow bypass the gage as a result of overtopping of the Klein
Avenue Levee 0.3 mi upstream of the gage. Satellite and telephone
gage-height telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 1,740
/s, Sept. 16, 1999, Aug. 28, 2011; maximum gage height,
11.50 ft, Aug. 28, 2011; minimum discharge not determined.
Peak Flow and Stage Information