Chief Joseph Dam & Rufus Woods Lake

April 2026

Day of Month	Total Generation MWh	Average Generation MW	Station Use MWh	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	34391	1433	32	115.90	108.10	108.10	0.00	955.20	954.10	781.90	172.20
2	34067	1419	30	98.50	109.30	107.50	1.80	952.40	954.40	783.00	171.40
3	33490	1395	29	108.60	107.80	107.80	0.00	952.60	951.90	783.00	168.90
4	33730	1405	28	110.50	109.00	106.90	2.10	953.00	953.40	782.70	170.70
5	34022	1418	26	106.60	107.80	107.80	0.00	952.70	953.00	782.30	170.70
6				104.40	102.40	102.40	0.00	953.50	953.00	781.70	171.30
7				85.80	87.00	87.00	0.00	953.20	953.10	780.60	172.50
8				101.60	98.10	98.10	0.00	954.10	953.60	780.40	173.20
9				97.50	98.30	98.30	0.00	953.90	953.80	781.10	172.70
10				113.60	117.10	102.80	14.30	953.00	953.50	781.50	172.00
11				116.20	118.00	110.10	7.90	952.50	952.90	782.00	170.90
12				133.00	127.20	110.50	16.70	954.00	953.20	782.20	171.00
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20
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29
30

TOT	169700		146
AVG	33940	1414	29	107.68	107.51	103.94	3.57	953.34	953.33	781.87	171.46

MAX	34391			133.00	127.20	110.50	16.70	955.20	954.40	783.00	173.20
MIN	33490			85.80	87.00	87.00	0.00	952.40	951.90	780.40	168.90