Rock Island Dam

Sunday May 31, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head
1	177.20	131.00	46.20	612.61	573.95	38.66
2	175.50	130.90	44.60	612.58	573.54	39.04
3	167.90	130.40	37.50	612.55	573.43	39.12
4	167.00	130.50	36.50	612.48	573.56	38.92
5	167.10	130.70	36.40	612.46	573.65	38.81
6	171.80	130.10	41.70	612.53	573.86	38.67
7	168.40	130.10	38.30	612.50	573.70	38.80
8	145.10	129.90	15.20	612.44	573.16	39.28
9	126.00	119.00	7.00	612.22	572.08	40.14
10	116.90	109.90	7.00	612.28	573.41	38.87
11	112.00	78.70	33.30	612.51	572.57	39.94
12	124.00	70.90	53.10	612.86	572.53	40.33
13	133.10	71.20	61.90	612.89	573.19	39.70
14	146.80	72.20	74.60	612.87	573.51	39.36
15	148.30	72.60	75.70	612.69	573.38	39.31
16	142.10	72.00	70.10	612.55	572.97	39.58
17	132.20	71.80	60.40	612.58	572.81	39.77
18	141.90	92.60	49.30	612.37	573.95	38.42
19	137.20	124.80	12.40	612.56	573.59	38.97
20	164.40	125.50	38.90	612.33	573.94	38.39
21	170.20	129.60	40.60	612.51	574.16	38.35
22	170.70	129.80	40.90	612.58	574.03	38.55
23	172.60	129.90	42.70	612.60	574.21	38.39
24	174.10	131.10	43.00	612.48	574.24	38.24

AVG	152.19	110.22	41.97	612.54	573.48	39.07

MAX	177.20	131.10	75.70	612.89	574.24	40.33
MIN	112.00	70.90	7.00	612.22	572.08	38.24