Chief Joseph Dam

Tuesday September 8, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head	Average Forebay Elevation	Average Tailwater Elevation
1	47.90	47.90	0.00	952.70	777.40	175.30	952.70	777.60
2	41.00	41.00	0.00	952.50	777.40	175.10	952.50	777.50
3	38.40	38.40	0.00	952.50	777.30	175.20	952.50	777.30
4	37.00	37.00	0.00	952.60	777.20	175.40	952.60	777.30
5	37.10	37.10	0.00	952.40	777.70	174.70	952.50	777.20
6	65.90	65.90	0.00	952.00	778.70	173.30	952.10	778.60
7	65.40	65.40	0.00	952.00	778.50	173.50	952.00	778.50
8	50.80	50.80	0.00	952.30	777.80	174.50	952.20	777.90
9	33.90	33.90	0.00	952.30	777.60	174.70	952.30	777.40
10	29.70	29.70	0.00	952.20	777.30	174.90	952.30	777.60
11	32.50	32.50	0.00	952.30	777.50	174.80	952.20	777.70
12	28.60	28.60	0.00	952.30	777.60	174.70	952.40	777.40
13	32.80	32.80	0.00	952.30	777.50	174.80	952.60	777.60
14	36.80	36.80	0.00	952.40	777.70	174.70	952.30	777.70
15	43.40	43.40	0.00	952.40	778.00	174.40	952.40	778.00
16	48.80	48.80	0.00	952.40	778.70	173.70	952.40	778.20
17	58.60	58.60	0.00	952.60	779.10	173.50	952.70	778.70
18	69.60	69.60	0.00	952.60	779.10	173.50	952.70	779.00
19	78.00	78.00	0.00	952.90	778.50	174.40	952.70	779.10
20	63.50	63.50	0.00	953.20	778.00	175.20	953.10	777.90
21	64.20	64.20	0.00	953.50	777.70	175.80	953.30	777.80
22	59.70	59.70	0.00	953.70	777.30	176.40	953.60	777.60
23	74.20	74.20	0.00	953.70	777.70	176.00	953.70	778.30
24	55.10	55.10	0.00	953.80	777.20	176.60	953.80	777.10

AVG	49.70	49.70	0.00	952.65	777.85	174.80	952.65	777.88

MAX	78.00	78.00	0.00	953.80	779.10	176.60	953.80	779.10
MIN	28.60	28.60	0.00	952.00	777.20	173.30	952.00	777.10