Funding for this site is provided by:
41°50'35", long 74°05'10" referenced to North
American Datum of 1983, Ulster County, NY, Hydrologic Unit 02020007, on
left bank 30 ft upstream from bridge on James Street in Rosendale, and
3 mi upstream from Wallkill River.
PERIOD OF RECORD.--
July 1901 to November 1903, October 1905 to
December 1906 (monthly discharges only, published in WSP 1302), January
1907 to December 1913, January 1914 to January 1919 (monthly discharges
only, published in WSP 1302), August 1926 to current year (monthly
discharge only, January to May and September 1970).
WSP 756: 1933. WDR NY-90-1: Drainage Area. WDR
Water-stage recorder and crest-stage gage. Datum of gage
is 32.83 ft above NGVD of 1929. Prior to January 1919, nonrecording
gage at site 150 ft downstream at datum 6.00 ft higher; Aug. 3, 1926 to
Nov. 17, 1968, at present site at datum 10.00 ft higher. Nov. 18, 1968
to Feb. 3, 1970, at temporary site 0.2 mi upstream at datum 11.20 ft
higher; Feb. 4 to June 8, 1970, there was no gage, gage destroyed by
flood; June 9, 1970 to Jan. 18, 1971, nonrecording gage at temporary
site 0.2 mi upstream at datum 11.20 ft higher; all during period of
flood-control channel construction.
Occasional regulation from hydroelectric plant
upstream from station. Diversion upstream from station during
navigation season for Delaware and Hudson Canal, 1901-19. Diversion
from Rondout Creek through the emergency connection to the Delaware
Aqueduct at Lackawack for New York City water supply during April 1944
to May 1951. Since October 1950, flow regulated by Rondout Reservoir
(station 01366400). Subsequent to May 1951, entire flow except for
conservation releases and periods of spill, diverted from Rondout
Reservoir for New York City water supply. Discharge records for this
station now represent the natural flow from 288 mi² together with
conservation releases and spillage during high flow from Rondout
Water Years 2014-16: Records good except those for estimated daily
discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 36,500 ft³/s,
Aug. 28, 2011, gage height, 26.96 ft; maximum gage height, 36.8 ft,
Oct. 16, 1955, present datum, from floodmarks; minimum discharge, 2.2
ft³/s, July 16, 1965.
Peak Flow and Stage Information