Ice Harbor Dam

September 2026

Day of Month	Total Generation MWh	Average Generation MW	Station Use MWh	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	2367	99	55	20.00	20.80	13.10	7.00	438.32	438.18	338.51	99.67
2	2359	98	55	17.30	18.00	13.10	4.20	438.14	438.26	338.98	99.28
3	2878	120	55	21.50	18.10	15.90	1.40	438.93	438.62	339.31	99.31
4	3056	127	54	21.90	22.10	16.80	4.70		439.12	339.34	99.78
5	4018	167	54	28.40	27.70	22.30	4.70	439.06	439.15	339.79	99.36
6	2823	118	53	24.90	25.30	15.50	9.20	438.97	439.00	339.16	99.84
7	3453	144	53	23.50	24.50	19.20	4.70	438.74	438.84	339.47	99.37
8	3108	130	54	21.40	22.20	17.20	4.40	438.55	438.69	339.28	99.41
9	3077	128	54	23.40	22.10	16.90	4.70	438.85	439.05	339.30	99.75
10	3728	155	54	26.80	26.10	20.60	4.70	439.03	438.96	339.53	99.43
11	2962	123	54	25.20	25.90	16.30	9.10	438.86	438.95	339.07	99.88
12	2370	99	53	21.40	22.30	12.90	8.80	438.65	438.65	338.73	99.92
13	2358	98	53	19.00	17.90	12.80	4.50	438.91	438.70	338.68	100.02
14	2366	99	54	21.30	19.40	12.80	5.80	439.36	439.08	338.46	100.62
15	3065	128	54	21.60	22.20	16.70	4.90	439.19	439.45	338.95	100.50
16	2988	124	54	20.00	21.90	16.40	4.80	438.94	439.19	339.04	100.15
17	2283	95	53	17.70	17.80	12.50	4.50	438.92	438.86	339.18	99.68
18				19.90	19.30	17.20	1.60	439.06	439.09	339.73	99.36
19				19.10	19.80	17.70	1.50	438.89	439.01	339.81	99.20
20				17.60	17.80	12.60	4.60	438.83	438.89	339.35	99.54
21				15.50	14.60	12.50	1.50	439.03	438.94	339.03	99.91
22				18.30	17.90	15.50	1.50	439.14	439.05	339.48	99.57
23				17.70	19.50	17.20	1.50	438.72	439.09	339.72	99.37
24				15.00	15.30	12.90	1.50	438.62	438.69	339.47	99.22
25
26
27
28
29
30

TOT	49259		917
AVG	2898	121	54	20.77	20.77	15.69	4.41	438.86	438.90	339.22	99.67

MAX	4018			28.40	27.70	22.30	9.20	439.36	439.45	339.81	100.62
MIN	2283			15.00	14.60	12.50	1.40	438.14	438.18	338.46	99.20