Chief Joseph Dam

Monday September 21, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head	Average Forebay Elevation	Average Tailwater Elevation
1	45.90	45.90	0.00	953.00	779.10	173.90	953.00	779.20
2	39.50	39.50	0.00	953.20	779.10	174.10	953.10	779.10
3	37.50	37.50	0.00	953.00	779.00	174.00	953.10	779.10
4	37.40	37.40	0.00	953.00	779.10	173.90	953.00	779.10
5	39.50	39.50	0.00	952.90	779.70	173.20	953.00	779.20
6	61.20	61.20	0.00	952.60	780.30	172.30	952.70	780.10
7	69.80	69.80	0.00	952.40	780.60	171.80	952.50	780.40
8	64.90	64.90	0.00	952.40	779.90	172.50	952.40	780.20
9	41.90	41.90	0.00	952.60	779.40	173.20	952.50	779.50
10	38.50	38.50	0.00	952.10	779.40	172.70	952.20	779.40
11	41.50	41.50	0.00	952.20	779.40	172.80	952.00	779.40
12	38.90	38.90	0.00	952.30	779.30	173.00	952.30	779.20
13	37.00	37.00	0.00	952.30	779.00	173.30	952.30	779.00
14	42.70	42.70	0.00	952.20	778.90	173.30	952.20	779.10
15	40.10	40.10	0.00	952.50	778.70	173.80	952.30	778.70
16	43.40	43.40	0.00	952.30	778.90	173.40	952.50	778.80
17	50.10	50.10	0.00	952.40	778.70	173.70	952.30	778.90
18	61.90	61.90	0.00	952.50	778.50	174.00	952.50	778.60
19	66.00	66.00	0.00	952.70	777.80	174.90	952.60	778.40
20	61.10	61.10	0.00	952.90	777.50	175.40	952.80	777.70
21	48.40	48.40	0.00	952.60	776.70	175.90	953.00	776.80
22	53.50	53.50	0.00	952.90	776.30	176.60	952.90	776.90
23	54.90	54.90	0.00	953.10	777.30	175.80	952.90	777.30
24	46.10	46.10	0.00	953.10	777.10	176.00	953.10	776.90

AVG	48.40	48.40	0.00	952.63	778.74	173.90	952.63	778.79

MAX	69.80	69.80	0.00	953.20	780.60	176.60	953.10	780.40
MIN	37.00	37.00	0.00	952.10	776.30	171.80	952.00	776.80