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leveled off in late March at about 4).8,000 acre-feet, elevaticln 4628.5 feet. The pool started to rIse rapidly in late April lind reached the peak storage level on ;,8 ~lY r~f 758,830 acre-feet, elevation 4650.9 feel;. This Wl>.s 2.1 feet, or 36,366 acre-feet" below the top of the flood-control zone and the crest of the uncontrolled spillw.,r. Glendo Res'~rvoir storage entered the flood-control pool on 9 May. The Corps of Engineers initiated. reservoir regulation orders on tha1C da:y' and continued to orde:r discharge rates until the pool lev.~, fell below the flood- control zone on 28 July. The :reseJrV'oir storage level was in the flood-control pool for 80 days and reached the highest storage level of recc>rd. 22. KINGSLEY DAM - 'LAKE McCONAUGlfC Kingsley Dam is owned and ope:rn,ted by the Central Nebraska Public Power and Irrigation Distri,~t, of Holdrege, Nebraska.. Construction was cOlllpleted in 1941. The dam is a key unit in the District's irrigation and powe:r operations.. On 1 May 1972, the slope protection and embankment were damaged by wave action induced by prolonged, high winds frail the west-northwest directi,on. Af'ter repairs were completed, consuJ.ting engineers recommended that lake levels be kept below eleY'e,tion 3265 feet m.s.l. Moreover, the consultants recc.mnended that during the high-rind risk peri,ods, storage levels should be kept below 3260 feet m.s .1. These periods were judged to be from 1 March to 15 May and from 1 October to 31 DecEroIber. This was prima.rily a mee,sure to minimize wave-damage repairs. In 1973, prolonged high flow on the North Platte and, South Platte Rivers forced lake level!! to be higher than desired. Lake McCon.!;ughy, hm..e"er, assisted in flood control on both the North Platte and South Platte Ri"ers. Kingsley Dam decrea!;ed the diSChargE' dmmstream from the dam during May 1973 by an average of 1,:,80 cubic feet per second by meaDS of reservoir !!torage. The maximum discharge reduction by reservoir impoundment during late MI,y was 2,900 cubic feet pe:r second. The highest lake level reac:hed liaS el'~vation 3264.0 feet m.s.l. between 1 March and 15 May. Between 1 October and 31 December, the lalce level ranged from e~evation 3261.6 to 3258.4 feet m.s.l. 23 . REllERVOIR FLOOD CONTROL The peak discharges and flood :3tages e,long the North PlB,ttE' River were greatly J~educed by rese:r-roi,r !ltorage and by irrigation diversions; this is illustrated on :plates "!O through 22. Di!.- charge reduc:tions 0:(' as much as 20,000 cubi.c feet per second at 39