Rock Island Dam & Reservoir

April 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	7642	318	0	124.05	130.32	118.31	12.01	611.85	611.71	572.99	38.72
2	7309	305	0	117.21	120.83	110.02	10.80	611.79	611.69	572.33	39.36
3	7612	317	0	122.95	126.73	114.41	12.32	612.02	611.79	572.53	39.26
4	7735	322	0	119.37	123.94	113.68	10.26	611.13	611.75	571.83	39.92
5	7658	319	0	118.82	122.57	111.77	10.81	611.95	611.84	571.55	40.29
6	7702	321	0	119.23	124.12	112.85	11.27	611.74	611.73	571.60	40.13
7				99.82	101.65	90.29	11.36	611.98	611.85	571.84	40.01
8				112.56	116.73	106.59	10.14	612.04	611.44	572.44	39.00
9				105.88	108.00	96.37	11.63	612.33	611.82	570.82	41.00
10				128.01	132.26	116.99	15.27	611.49	612.01	571.67	40.34
11				120.48	122.59	111.27	11.33	612.26	611.78	571.55	40.23
12				145.38	150.76	127.62	23.15	612.55	612.21	573.18	39.03
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TOT	45658		0
AVG	7610	317	0	119.48	123.37	110.85	12.53	611.93	611.80	572.03	39.77

MAX	7735			145.38	150.76	127.62	23.15	612.55	612.21	573.18	41.00
MIN	7309			99.82	101.65	90.29	10.14	611.13	611.44	570.82	38.72