LOCATION.--Lat 42°30'30", long 94°12'12" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 NW 1/4 sec.19, T.89 N., R.28 W., Webster County, IA, Hydrologic Unit 07100004, on right bank 750 ft downstream from Illinois Central Railroad bridge in Fort Dodge, 1,100 ft downstream from Lizard Creek, 1,300 ft upstream from Soldier Creek, and 303.3 mi upstream from mouth. (map)

DRAINAGE AREA.--4,190 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Discharge records from April 1905 to July 1906 (no winter records), October 1913 to September 1927 (published as "at Kalo"), October 1946 to current year. October 1913 to December 1949, monthly mean discharge for some periods published in WSP 1308.

REVISED RECORDS.--WSP 1438: Drainage area. WSP 1308: 1924, 1925 (M).

GAGE.--Water-stage recorder. Datum of gage is 969.38 ft above National Geodetic Vertical Datum of 1929. April 22, 1905, to July 19, 1906, non-recording gage at bridge 0.8 mi downstream at different datum; October 18, 1913, to October 20, 1921, and June 20 to September 30, 1927, non-recording gage at site 8.2 mi downstream at Kalo at different datum; October 21, 1921, to June 19, 1927, water-stage recorder at site 8.2 mi downstream at Kalo at different datum; October 1, 1946, to December 7, 1949, non-recording gage at bridge 750 ft upstream at same datum; December 8, 1949, to July 14, 2009, at site 650 ft downstream at same datum.

REMARKS.--Occasional minor regulation caused by dam 0.8 mi upstream from gage.

Advanced Hydrologic Prediction Service

U.S. Army Corps of Engineers - Rock Island District

National Streamflow Information Program