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Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of f
looding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitori
ng activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance from
the White House, the CDC, and state and local authorities.
LOCATION.--Lat 41°50'06", long 92°23'10"
referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SW 1/4
sec.8, T.81 N., R.13 W., Poweshiek County, IA, Hydrologic Unit
07080208, on right bank 5 ft downstream from bridge on County Highway
V21, 4.0 mi northwest of Hartwick, 1.2 mi downstream from North
Walnut Creek, and 6.5 mi upstream from mouth. (map)
DRAINAGE AREA.--70.9 mi2.
PERIOD OF RECORD.--Discharge records from October 1949 to current
REVISED RECORDS.--WSP 1558: 1950 (P), 1951-57.
GAGE.--Water-stage recorder. Datum of gage is 786.59 ft above
National Geodetic Vertical Datum of 1929.