Chief Joseph Dam

Friday September 18, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head	Average Forebay Elevation	Average Tailwater Elevation
1	42.50	42.50	0.00	953.40	778.70	174.70	953.20	778.60
2	33.80	33.80	0.00	953.40	779.10	174.30	953.40	778.80
3	33.90	33.90	0.00	953.10	778.50	174.60	953.20	778.80
4	33.10	33.10	0.00	953.10	779.10	174.00	953.10	778.70
5	40.90	40.90	0.00	953.20	778.80	174.40	953.10	779.10
6	44.80	44.80	0.00	953.20	779.10	174.10	953.10	779.00
7	34.50	34.50	0.00	953.10	779.10	174.00	953.20	778.70
8	58.20	58.20	0.00	952.80	779.70	173.10	952.90	779.90
9	42.40	42.40	0.00	953.10	779.20	173.90	953.00	779.00
10	37.20	37.20	0.00	953.10	779.50	173.60	953.20	779.10
11	42.00	42.00	0.00	952.70	779.10	173.60	952.90	779.40
12	44.70	44.70	0.00	952.80	779.70	173.10	952.80	779.40
13	47.50	47.50	0.00	953.00	779.60	173.40	952.90	779.70
14	45.10	45.10	0.00	952.90	779.80	173.10	952.90	779.60
15	43.90	43.90	0.00	952.90	779.80	173.10	952.90	779.70
16	39.40	39.40	0.00	953.00	779.60	173.40	952.90	779.50
17	47.00	47.00	0.00	952.80	780.10	172.70	952.90	779.90
18	61.50	61.50	0.00	952.60	779.40	173.20	952.70	779.70
19	65.30	65.30	0.00	952.80	779.20	173.60	952.60	779.40
20	51.30	51.30	0.00	953.10	777.60	175.50	953.00	778.20
21	49.10	49.10	0.00	952.90	778.00	174.90	953.00	778.10
22	46.00	46.00	0.00	952.80	777.10	175.70	952.90	777.60
23	41.10	41.10	0.00	952.90	777.00	175.90	952.80	777.00
24	37.00	37.00	0.00	952.90	777.00	175.90	952.90	777.10

AVG	44.26	44.26	0.00	952.98	778.91	174.07	952.98	778.92

MAX	65.30	65.30	0.00	953.40	780.10	175.90	953.40	779.90
MIN	33.10	33.10	0.00	952.60	777.00	172.70	952.60	777.00