Rock Island Dam

Saturday April 11, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head
1	160.80	147.30	13.50	612.00	572.57	39.43
2	159.90	145.80	14.10	612.44	572.76	39.68
3	162.30	148.20	14.10	612.31	573.03	39.28
4	162.20	148.30	13.90	612.28	572.86	39.42
5	159.40	148.60	10.80	612.00	572.91	39.09
6	159.70	149.00	10.70	611.70	573.08	38.62
7	149.20	138.80	10.40	611.84	572.30	39.54
8	139.90	130.70	9.20	611.83	571.91	39.92
9	128.30	119.20	9.10	611.63	571.15	40.48
10	120.00	110.80	9.20	611.99	571.67	40.32
11	128.40	119.10	9.30	611.71	571.95	39.76
12	119.60	110.40	9.20	611.61	571.10	40.51
13	96.20	85.70	10.50	611.60	570.43	41.17
14	100.00	89.60	10.40	611.37	570.94	40.43
15	45.40	34.60	10.80	611.94	568.91	43.03
16	29.70	19.20	10.50	611.43	568.56	42.87
17	27.90	17.20	10.70	611.72	569.40	42.32
18	57.60	47.30	10.30	611.41	569.78	41.63
19	88.30	77.70	10.60	611.54	570.46	41.08
20	138.50	128.20	10.30	610.95	571.94	39.01
21	153.60	140.50	13.10	611.39	572.62	38.77
22	157.40	144.10	13.30	611.53	572.38	39.15
23	141.60	127.80	13.80	612.30	571.76	40.54
24	156.30	142.30	14.00	612.26	572.72	39.54

AVG	122.59	111.27	11.33	611.78	571.55	40.23

MAX	162.30	149.00	14.10	612.44	573.08	43.03
MIN	27.90	17.20	9.10	610.95	568.56	38.62