Ice Harbor Dam

Sunday May 31, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head	Nav Lock Tailwater Elevation
1	72.50	12.90	59.00	438.26	342.54	95.72	343.24
2	72.40	12.90	59.00	438.27	342.51	95.76	343.11
3	73.80	12.90	58.90	438.21	342.54	95.67	343.14
4	72.50	12.90	59.10	438.27	342.68	95.59	343.15
5	72.50	12.90	59.10	438.24	342.50	95.74	343.16
6	72.40	12.90	59.00	438.21	342.46	95.75	343.17
7	72.40	12.90	59.00	438.17	342.53	95.64	343.16
8	72.30	12.90	58.90	438.18	342.64	95.54	343.07
9	72.30	12.90	58.90	438.08	342.50	95.58	343.17
10	72.30	12.90	58.90	438.11	342.56	95.55	343.17
11	72.30	12.90	58.90	438.09	342.50	95.59	343.20
12	70.40	12.90	57.00	438.02	342.28	95.74	343.02
13	70.30	12.90	56.80	438.03	342.43	95.60	343.04
14	70.30	12.90	56.90	438.03	342.42	95.61	343.02
15	70.20	12.90	56.80	437.98	342.45	95.53	343.07
16	71.70	12.90	56.80	437.93	342.39	95.54	343.02
17	70.20	12.90	56.70	437.93	342.39	95.54	343.13
18	70.10	12.90	56.70	437.88	342.31	95.57	343.03
19	70.20	13.00	56.70	437.89	342.26	95.63	342.96
20	70.30	12.90	56.90	437.87	342.28	95.59	342.97
21	70.40	12.90	57.00	437.84	342.30	95.54	342.92
22	70.40	12.90	57.00	437.84	342.30	95.54	342.97
23	70.40	12.90	57.00	437.83	342.28	95.55	342.97
24	70.40	13.00	57.00	437.78	342.27	95.51	342.88

AVG	71.38	12.91	57.83	438.04	342.43	95.61	343.07

MAX	73.80	13.00	59.10	438.27	342.68	95.76	343.24
MIN	70.10	12.90	56.70	437.78	342.26	95.51	342.88