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Water-Year Summary for Site 15239001

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
15239001 BRADLEY RIVER BELOW DAM NEAR HOMER, AK
LOCATION - Lat 59°45'30", long 150°51'02" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 NW 1/4 sec.08, T.5 S., R.9 W., Kenai Peninsula Borough, AK, Hydrologic Unit 19020301, (Seldovia D-3 quad), on right bank about 1,300 ft downstream from Bradley Lake Dam, 3.3 mi upstream from Middle Fork Bradley R, and 26 mi northeast of Homer.
DRAINAGE AREA -

Undetermined due to diversions

SUPERSEDED

from sometime to WY19: 53.8 mi²

post- Oct. 1991: ~66 mi², additional water was diverted into the basin

pre- Oct. 1991: 53.8 mi²

REVISIONS HISTORY -

On February 9, 2022, instantaneous discharges from March 25, 2021 to July 13, 2021 were revised based on changes to the stage-discharge rating.

The original computation had a fill shift in place causing the computed discharges to be below the rating and no discharge value was populated. Review of the shift application was adjusted and subsequently all discharge values are populated. 

SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1989 to March 8, 2016, May 21, 2019 - current water year. Prior to 1990 water year, records are equivalent to "Bradley River near Homer" (station no. 15239000).
GAGE - Water-stage recorder. Datum of gage is 1,054.16 ft amsl (dam-site level survey for Alaska Power Authority, 1991).
REMARKS - Nuka River and Middle Fork Bradley River were diverted into Bradley Lake, upstream from dam, beginning July 29 and August 7, 1990, respectively. Reservoir began filling April 26, 1991. Water has been diverted out of the basin through the turbines since hydropower generation began on June 28, 1991. Battle Creek was diverted into reservoir in October 1991. GOES satellite telemetry at station.