Ice Harbor Dam

Sunday September 20, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head	Nav Lock Tailwater Elevation
1	14.50	12.50	0.00	439.00	339.39	99.61	339.51
2	13.00	12.50	0.00	438.88	339.63	99.25	339.53
3	14.50	12.50	0.00	438.84	339.30	99.54	339.46
4	13.00	12.50	0.00	438.88	339.39	99.49	339.53
5	13.20	12.50	0.20	438.98	339.27	99.71	339.78
6	22.10	12.50	9.00	438.78	339.17	99.61	340.11
7	22.20	12.50	9.20	438.98	339.15	99.83	339.95
8	22.20	12.50	9.20	438.82	339.25	99.57	340.02
9	22.20	12.60	9.10	438.89	339.32	99.57	340.00
10	22.30	12.60	9.20	438.92	339.25	99.67	340.07
11	22.20	12.60	9.10	438.88	339.27	99.61	340.13
12	22.30	12.60	9.20	438.94	339.39	99.55	340.20
13	22.20	12.60	9.10	438.85	339.29	99.56	340.16
14	22.20	12.60	9.10	438.77	339.45	99.32	340.38
15	23.80	12.60	9.20	438.86	339.41	99.45	340.18
16	22.20	12.60	9.10	438.78	339.44	99.34	340.29
17	21.80	12.60	8.80	438.99	339.43	99.56	339.75
18	13.10	12.60	0.00	438.95	339.51	99.44	339.67
19	13.10	12.60	0.00	438.80	339.45	99.35	339.64
20	13.10	12.60	0.00	439.01	339.41	99.60	339.59
21	13.10	12.60	0.00	438.85	339.41	99.44	339.57
22	13.10	12.60	0.00	438.95	339.26	99.69	339.43
23	13.10	12.60	0.00	438.92	339.26	99.66	339.40
24	13.10	12.60	0.00	438.83	339.27	99.56	339.41

AVG	17.82	12.57	4.56	438.89	339.35	99.54	339.82

MAX	23.80	12.60	9.20	439.01	339.63	99.83	340.38
MIN	13.00	12.50	0.00	438.77	339.15	99.25	339.40