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USGS Water-Year Summary 2024
14165000 MOHAWK RIVER NEAR SPRINGFIELD, OR
LOCATION - Lat 44°05'35", long 122°57'22" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.17, T.17 S., R.2 W., Lane County, OR, Hydrologic Unit 17090004, on left bank, 50 ft downstream from bridge, 1.3 mi northeast of Springfield and at mile 1.59.
DRAINAGE AREA - 177 mi².
REVISIONS HISTORY -
WSP 1248: 1939. WSP 1738: Drainage area. WDR OR-86-2: 1985(m).
Revision: Annual maximum gage-heights for Water Years 1988 to 1990 were revised on May 9, 2023 based on further review of the annual peak gage-height record.
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 1935 to September 1952, October 1963 to September 1997, October 1998 to current year. Prior to October 1935, monthly discharge only, published in WSP 1318.
GAGE - Water-stage recorder, crest-stage gage, and acoustic velocity meter (AVM). Datum of gage is 442.47 ft above NGVD of 1929. Oct. 1, 1935 to Sept. 30, 1952, nonrecording gage at same site and datum.
REMARKS - Flows subject to backwater from McKenzie River. Many diversions for irrigation upstream from station. Continuous water-quality records for periods October 1963 to September 1969 and April 1983 to September 1984 have been collected at this location.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Dec. 22, 1955, reached a stage of 22.9 ft, from floodmark, probably affected by backwater from McKenzie River, discharge, 9,200 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 13,500 ft³/s Feb. 7, 1996, gage height, 23.11 ft; minimum discharge, 8.2 ft³/s Sept. 9, 1967.
