Rock Island Dam

Thursday April 9, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head
1	123.50	111.30	12.20	612.05	571.99	40.06
2	120.20	107.70	12.50	612.31	571.24	41.07
3	83.00	70.50	12.50	612.29	570.10	42.19
4	85.90	73.70	12.20	611.57	570.91	40.66
5	84.20	73.70	10.50	611.19	571.05	40.14
6	121.00	110.80	10.20	611.07	572.05	39.02
7	157.50	147.80	9.70	610.50	573.10	37.40
8	101.20	88.10	13.10	612.51	570.86	41.65
9	112.60	96.20	16.40	612.50	571.08	41.42
10	113.80	97.20	16.60	612.42	571.46	40.96
11	106.90	95.10	11.80	612.55	570.32	42.23
12	101.50	94.40	7.10	612.31	570.65	41.66
13	108.00	97.10	10.90	611.89	570.94	40.95
14	104.00	93.30	10.70	611.75	570.26	41.49
15	97.30	86.60	10.70	611.60	570.21	41.39
16	95.20	84.60	10.60	611.53	570.56	40.97
17	97.70	87.20	10.50	611.33	570.26	41.07
18	89.80	79.40	10.40	611.02	569.94	41.08
19	92.60	82.20	10.40	611.23	570.23	41.00
20	102.90	92.30	10.60	611.79	570.23	41.56
21	107.60	95.40	12.20	611.85	570.27	41.58
22	118.10	105.80	12.30	612.04	570.91	41.13
23	131.00	118.80	12.20	612.04	571.16	40.88
24	136.60	123.80	12.80	612.33	572.00	40.33

AVG	108.00	96.38	11.63	611.82	570.91	40.91

MAX	157.50	147.80	16.60	612.55	573.10	42.23
MIN	83.00	70.50	7.10	610.50	569.94	37.40