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14243000 - COWLITZ RIVER AT CASTLE ROCK, WA
Latitude (degrees, minutes, and seconds) ...... 461630 Longitude (degrees, minutes, and seconds) ..... 1225448 State Code .................................... 53 County Code ................................... 015 County Name ................................... Cowlitz Basin Name .................................... Lower Cowlitz Hydrologic Unit Code .......................... 17080005 Drainage Area (square miles) .................. 2238.00* Gage Datum (feet, NAVD of 1988) ............... 0.0** Location ...................... SW/SE Sec.10, T.9 N, R.2 W, on left bank 40 ft downstream from Arkansas Valley Road bridge in Castle Rock, 2.7 mi downstream from Toutle River, and at mile 17.3. (WA-97-1) ----Period(s) of Record---- December 1926 to September 1985 October 1985 to current year (seasonal records) Surface-Water Quality (temperature, sediment): 1950-73, 1980-85 * Approximately 21 sq.mi. is noncontributing. Prior to July 7, 1981, approximately 40 sq.mi. was noncontributing ** Gage Datum previously published as "20.20 feet above sea level" using NGVD of 1929 |
December 18, 1933, to June 13, 1934:
nonrecording gage,
at present site at datum 5.0 ft higher.
(WA-97-1)
-- (Web Note: datum 25.20 ft)
June 14 to September 30, 1934:
water-stage recorder, at present site at datum 5.0 ft higher.
(WA-97-1)
-- (Web Note: datum 25.20 ft)
October 1, 1934, to May 21, 1980:
water-stage recorder, on right bank at present site and datum 20.20 feet.
(WA-97-1)
May 1980 to July 29, 1997:
water-stage recorder, at present site and on left bank at 20.20 datum.
(WA-97-1)
July 29, 1997: gage datum referenced from NVGD of 1929 (20.20) to 0.0 using NAVD of 1988, also adjusted by approximately 3.5 feet (personal commun., USGS/CVO, 1998)
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