PROVISIONAL DATA SUBJECT TO REVISION

Station operated in cooperation with the Port of Siuslaw, Siuslaw Soil and Water Conservation District and U.S. Geological Survey National Streamflow Information Program (NSIP).

STATION.-- 14307620  SIUSLAW RIVER NEAR MAPLETON, OR

LOCATION.--Lat 44° 03'45", long 123° 52'55", in SW 1/4 NW 1/4 sec.27, T.17 S., R.10 W., Lane 
County, Hydrologic Unit 17100206, on right bank 250 ft above Shoemaker Creek, 2.5 mi 
northwest of Mapleton, and at mile 23.7. [location map]
DRAINAGE AREA.--588 mi2. 
PERIOD OF RECORD.--October 1967 to September 1994, October 2001 to current year (discharge). 
February 1998 to September 2001 (gage height only). 
GAGE.--Water-stage recorder. Elevation of gage is 41 ft above NGVD of 1929, from topographic map. 
REMARKS.--No regulation or diversions upstream from  station. 
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 49,400 ft3/s Jan. 21, 1972, gage height, 
28.45 ft; minimum discharge, 45 ft3/s Aug. 18, 19, 1977. 
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of February 1996 reached a stage of 30.2 ft from 
floodmark inside gage house (discharge not determined). Flood of December 1964 reached a stage 
of about 28 ft, from information by local residents (discharge not determined).  

NOTE: River forecasts and additional data can be obtained at the 
National Weather Service's Advanced Hydrologic Prediction Services web page.

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