LOCATION.--Lat 42°27'49", long 91°53'42"
referenced to North American Datum of 1927, in NW 1/4 NE 1/4 SE 1/4
sec.4, T.88 N., R.9 W., Buchanan County, IA, Hydrologic Unit
07080102, on right bank at end of 6th Street in Independence, 1,800
ft downstream from dam at abandoned hydroelectric plant, 4.9 mi
downstream from Otter Creek, 9.7 mi upstream from Pine Creek, and 158
mi upstream from mouth. (map)
DRAINAGE AREA.--1,048 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Discharge records from July 1933 to current
year.
REVISED RECORDS.--WSP 1438: Drainage area. WSP 1508: 1938-39, 1940
(M), 1947.
GAGE.--Water-stage recorder and concrete control. Datum of gage is
882.85 ft above National Geodetic Vertical Datum of 1929. Prior to
May 24, 1941, non-recording gage in tailrace of power plant, 1,800 ft
upstream, at datum 80.00 ft lower.
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1968-1970, 2012.
PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: Daily instantaneous values collected in
conjunction with suspended-sediment samples, October 1968 to
September 1970.
WATER TEMPERATURE: Daily instantaneous values collected in
conjunction with suspended-sediment samples, October 1967 to
September 1970.
SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: December 1967 to
September 1970.
Site Information
Advanced
Hydrologic Prediction Service
U.S. Department of the Interior |
U.S. Geological Survey