USGS Water-Year Summary 2018
06865500 SMOKY HILL RIVER NEAR LANGLEY, KS
LOCATION - Lat 38°36'41", long 97°57'09" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SE 1/4 sec.35, T.16 S., R.6 W., Ellsworth County, KS, Hydrologic Unit 10260008, on left bank at downstream side of county highway bridge, 0.8 mi downstream from Kanopolis Dam, 5.0 mi north of Langley, and at mile 182.9.
DRAINAGE AREA - 7,857 mi².
PERIOD OF RECORD - October 1940 to current year.
REVISED RECORDS - WSP 1310: 1942(M).
GAGE - Water-stage recorder. Datum of gage is 1,395.66 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark). Prior to Apr. 1, 1952, water-stage recorder at datum 7.00 ft higher. Apr. 1, 1952, to Oct. 1, 1973, water-stage recorder at datum 5.00 ft higher.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1938 reached a stage of 33.9 ft, present datum, from information by U.S. Army Corps of Engineers, discharge, about 45,000 ft³/s by extension of subsequent rating curve above 16,000 ft³/s and correlation of peak flow at adjacent stations.