PROVISIONAL DATA SUBJECT TO REVISION

NOTE:The collection of water temperature and specific conductance was discontinued
due to lack of funding.

Station funded by U.S. Geological Survey National Streamflow Information Program (NSIP).

STATION.-- 14246900 COLUMBIA RIVER AT BEAVER ARMY TERMINAL, NEAR QUINCY, OR

LOCATION.--Lat 46° 10'55", long 123° 10'50", in NE 1/4 sec.16, T.8 N., R.4 W., Columbia 
County, Hydrologic Unit 17080003, on left bank, 0.7 mi downstream from Crims Island, 
3.0 mi northwest of Quincy, and at mile 53.8.[location map]  
DRAINAGE AREA.--256,900 mi2, approximately. 
PERIOD OF RECORD.--May 1968 to June 1970, June 1991 to current year. 
GAGE.--Acoustic velocity meter with water-stage and velocity index recorder. Datum of gage 
is 0.52 ft above NGVD of 1929. May 1968 to June 1970 water-stage recorder with auxillary 
water-stage recorder 5.6 miles downstream at datum 10.00 ft lower. 
REMARKS.--Flow regulated by many reservoir on Columbia River and in tributary basins. Flows 
affected by tide which can cause reverse direction during tidal cycle when mean daily 
flows are less than 250,000 ft3/s. Mean discharge values are  based on 
a 24 hour day, not a tidal cycle.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 581,000 ft3/s Jan. 28, 1970; 
minimum daily discharge, 63,600 ft3/s Sept. 9, 2001. 
EXTREME FOR FEBRUARY 1996 FLOOD.--Maximum daily discharge, 864,000 ft3/s Feb. 10; maximum 
elevation, 13.33 ft Feb. 9; minimum daily discharge, 111,000 ft3/s Sept. 3.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.