Rock Island Dam & Reservoir

August 2026

Day of Month	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	91.95	93.70	73.74	19.96	612.35	611.92	570.28	41.64
2	83.65	85.22	67.12	18.09	611.47	612.18	568.99	43.19
3	96.90	97.20	93.74	3.46	612.31	612.02	570.24	41.78
4	78.44	79.51	79.51	0.00	612.31	611.98	569.78	42.20
5	97.86	100.97	100.97	0.00	611.08	611.98	569.86	42.12
6	85.93	83.69	83.69	0.00	612.47	611.99	568.72	43.27
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TOT
AVG	89.12	90.05	83.13	6.92	612.00	612.01	569.64	42.37

MAX	97.86	100.97	100.97	19.96	612.47	612.18	570.28	43.27
MIN	78.44	79.51	67.12	0.00	611.08	611.92	568.72	41.64