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Hydrograph River at a Glance Download Inundation
Mapping
Illinois River at Ottawa Stage (ft)Observed: 460.1 ft at 9:15AM Jul 19, 2016Observed: 460.12 ft at 9:30AM Jul 19, 2016Observed: 460.13 ft at 9:45AM Jul 19, 2016Observed: 460.15 ft at 10:00AM Jul 19, 2016Observed: 460.17 ft at 10:15AM Jul 19, 2016Observed: 460.32 ft at 10:30AM Jul 19, 2016Observed: 460.3 ft at 10:45AM Jul 19, 2016Observed: 460.31 ft at 11:00AM Jul 19, 2016Observed: 460.32 ft at 11:15AM Jul 19, 2016Observed: 460.33 ft at 11:30AM Jul 19, 2016Observed: 460.34 ft at 11:45AM Jul 19, 2016Observed: 460.34 ft at 12:00PM Jul 19, 2016Observed: 460.37 ft at 12:15PM Jul 19, 2016Observed: 460.36 ft at 12:30PM Jul 19, 2016Observed: 460.36 ft at 12:45PM Jul 19, 2016Observed: 460.37 ft at 1:00PM Jul 19, 2016Observed: 460.37 ft at 1:15PM Jul 19, 2016Observed: 460.38 ft at 1:30PM Jul 19, 2016Observed: 460.38 ft at 1:45PM Jul 19, 2016Observed: 460.38 ft at 2:00PM Jul 19, 2016Observed: 460.38 ft at 2:15PM Jul 19, 2016Observed: 460.38 ft at 2:30PM Jul 19, 2016Observed: 460.38 ft at 2:45PM Jul 19, 2016Observed: 460.38 ft at 3:00PM Jul 19, 2016Observed: 460.38 ft at 3:15PM Jul 19, 2016Observed: 460.39 ft at 3:30PM Jul 19, 2016Observed: 460.4 ft at 3:45PM Jul 19, 2016Observed: 460.4 ft at 4:00PM Jul 19, 2016Observed: 460.4 ft at 4:15PM Jul 19, 2016Observed: 460.4 ft at 4:30PM Jul 19, 2016Observed: 460.39 ft at 4:45PM Jul 19, 2016Observed: 460.4 ft at 5:00PM Jul 19, 2016Observed: 460.4 ft at 5:15PM Jul 19, 2016Observed: 460.39 ft at 5:30PM Jul 19, 2016Observed: 460.39 ft at 5:45PM Jul 19, 2016Observed: 460.39 ft at 6:00PM Jul 19, 2016Observed: 460.39 ft at 6:15PM Jul 19, 2016Observed: 460.4 ft at 6:30PM Jul 19, 2016Observed: 460.39 ft at 6:45PM Jul 19, 2016Observed: 460.39 ft at 7:00PM Jul 19, 2016Observed: 460.39 ft at 7:15PM Jul 19, 2016Observed: 460.4 ft at 7:30PM Jul 19, 2016Observed: 460.4 ft at 7:45PM Jul 19, 2016Observed: 460.4 ft at 8:00PM Jul 19, 2016Observed: 460.41 ft at 8:15PM Jul 19, 2016Observed: 460.41 ft at 8:30PM Jul 19, 2016Observed: 460.42 ft at 8:45PM Jul 19, 2016Observed: 460.42 ft at 9:00PM Jul 19, 2016Observed: 460.43 ft at 9:15PM Jul 19, 2016Observed: 460.43 ft at 9:30PM Jul 19, 2016Observed: 460.43 ft at 9:45PM Jul 19, 2016Observed: 460.43 ft at 10:00PM Jul 19, 2016Observed: 460.44 ft at 10:15PM Jul 19, 2016Observed: 460.44 ft at 10:30PM Jul 19, 2016Observed: 460.44 ft at 10:45PM Jul 19, 2016Observed: 460.44 ft at 11:00PM Jul 19, 2016Observed: 460.44 ft at 11:15PM Jul 19, 2016Observed: 460.46 ft at 11:30PM Jul 19, 2016Observed: 460.47 ft at 11:45PM Jul 19, 2016Observed: 460.5 ft at 12:00AM Jul 20, 2016Observed: 460.51 ft at 12:15AM Jul 20, 2016Observed: 460.53 ft at 12:30AM Jul 20, 2016Observed: 460.55 ft at 12:45AM Jul 20, 2016Observed: 460.57 ft at 1:00AM Jul 20, 2016Observed: 460.59 ft at 1:15AM Jul 20, 2016Observed: 460.6 ft at 1:30AM Jul 20, 2016Observed: 460.62 ft at 1:45AM Jul 20, 2016Observed: 460.64 ft at 2:00AM Jul 20, 2016Observed: 460.65 ft at 2:15AM Jul 20, 2016Observed: 460.66 ft at 2:30AM Jul 20, 2016Observed: 460.68 ft at 2:45AM Jul 20, 2016Observed: 460.74 ft at 3:00AM Jul 20, 2016Observed: 460.72 ft at 3:15AM Jul 20, 2016Observed: 460.72 ft at 3:30AM Jul 20, 2016Observed: 460.71 ft at 3:45AM Jul 20, 2016Observed: 460.74 ft at 4:00AM Jul 20, 2016Observed: 460.76 ft at 4:15AM Jul 20, 2016Observed: 460.79 ft at 4:30AM Jul 20, 2016Observed: 460.79 ft at 4:45AM Jul 20, 2016Observed: 460.78 ft at 5:00AM Jul 20, 2016Observed: 460.78 ft at 5:15AM Jul 20, 2016Observed: 460.77 ft at 5:30AM Jul 20, 2016Observed: 460.76 ft at 5:45AM Jul 20, 2016Observed: 460.74 ft at 6:00AM Jul 20, 2016Observed: 460.73 ft at 6:15AM Jul 20, 2016Observed: 460.72 ft at 6:30AM Jul 20, 2016Observed: 460.71 ft at 6:45AM Jul 20, 2016Observed: 460.69 ft at 7:00AM Jul 20, 2016Observed: 460.68 ft at 7:15AM Jul 20, 2016Observed: 460.67 ft at 7:30AM Jul 20, 2016Observed: 460.67 ft at 7:45AM Jul 20, 2016Observed: 460.66 ft at 8:00AM Jul 20, 2016Observed: 460.67 ft at 8:15AM Jul 20, 2016Observed: 460.67 ft at 8:30AM Jul 20, 2016Observed: 460.68 ft at 9:45AM Jul 20, 2016Observed: 460.66 ft at 10:00AM Jul 20, 2016Observed: 460.65 ft at 10:15AM Jul 20, 2016Observed: 460.64 ft at 10:30AM Jul 20, 2016Observed: 460.63 ft at 10:45AM Jul 20, 2016Observed: 460.61 ft at 11:00AM Jul 20, 2016Observed: 460.59 ft at 11:15AM Jul 20, 2016Observed: 460.58 ft at 11:30AM Jul 20, 2016Observed: 460.57 ft at 11:45AM Jul 20, 2016Observed: 460.54 ft at 12:00PM Jul 20, 2016Observed: 460.53 ft at 12:15PM Jul 20, 2016Observed: 460.51 ft at 12:30PM Jul 20, 2016Observed: 460.41 ft at 1:45PM Jul 20, 2016Observed: 460.39 ft at 2:00PM Jul 20, 2016Observed: 460.37 ft at 2:15PM Jul 20, 2016Observed: 460.34 ft at 2:30PM Jul 20, 2016Observed: 460.31 ft at 3:45PM Jul 20, 2016Observed: 460.3 ft at 4:00PM Jul 20, 2016Observed: 460.29 ft at 4:15PM Jul 20, 2016Observed: 460.28 ft at 4:30PM Jul 20, 2016Observed: 460.27 ft at 4:45PM Jul 20, 2016Observed: 460.26 ft at 5:00PM Jul 20, 2016Observed: 460.26 ft at 5:15PM Jul 20, 2016Observed: 460.26 ft at 5:30PM Jul 20, 2016Observed: 460.26 ft at 5:45PM Jul 20, 2016Observed: 460.25 ft at 6:00PM Jul 20, 2016Observed: 460.24 ft at 6:15PM Jul 20, 2016Observed: 460.24 ft at 6:30PM Jul 20, 2016Observed: 460.22 ft at 6:45PM Jul 20, 2016Observed: 460.21 ft at 7:00PM Jul 20, 2016Observed: 460.19 ft at 7:15PM Jul 20, 2016Observed: 460.2 ft at 7:30PM Jul 20, 2016Observed: 460.18 ft at 7:45PM Jul 20, 2016Observed: 460.19 ft at 8:00PM Jul 20, 2016Observed: 460.13 ft at 8:15PM Jul 20, 2016Observed: 460.11 ft at 8:30PM Jul 20, 2016Observed: 460.13 ft at 8:45PM Jul 20, 2016Observed: 460.04 ft at 9:00PM Jul 20, 2016Observed: 460.05 ft at 9:15PM Jul 20, 2016Observed: 460.04 ft at 9:30PM Jul 20, 2016Observed: 460.02 ft at 9:45PM Jul 20, 2016Observed: 460.02 ft at 10:00PM Jul 20, 2016Observed: 459.96 ft at 10:15PM Jul 20, 2016Observed: 459.97 ft at 10:30PM Jul 20, 2016Observed: 459.98 ft at 10:45PM Jul 20, 2016Observed: 459.98 ft at 11:00PM Jul 20, 2016Observed: 460 ft at 11:15PM Jul 20, 2016Observed: 460.01 ft at 11:30PM Jul 20, 2016Observed: 460 ft at 11:45PM Jul 20, 2016Observed: 460.02 ft at 12:00AM Jul 21, 2016Observed: 460.03 ft at 12:15AM Jul 21, 2016Observed: 460.04 ft at 12:30AM Jul 21, 2016Observed: 460.05 ft at 12:45AM Jul 21, 2016Observed: 460.07 ft at 1:00AM Jul 21, 2016Observed: 460.08 ft at 1:15AM Jul 21, 2016Observed: 460.09 ft at 1:30AM Jul 21, 2016Observed: 460.09 ft at 1:45AM Jul 21, 2016Observed: 460.09 ft at 2:00AM Jul 21, 2016Observed: 460.08 ft at 2:15AM Jul 21, 2016Observed: 460.09 ft at 2:30AM Jul 21, 2016Observed: 460.07 ft at 5:45AM Jul 21, 2016Observed: 460.07 ft at 6:00AM Jul 21, 2016Observed: 460.05 ft at 6:15AM Jul 21, 2016Observed: 459.98 ft at 6:30AM Jul 21, 2016Observed: 459.97 ft at 7:45AM Jul 21, 2016Observed: 459.96 ft at 8:00AM Jul 21, 2016Observed: 459.94 ft at 8:15AM Jul 21, 2016Observed: 459.92 ft at 8:30AM Jul 21, 2016Observed: 459.91 ft at 8:45AM Jul 21, 2016Observed: 459.9 ft at 9:00AM Jul 21, 2016Observed: 459.92 ft at 9:15AM Jul 21, 2016Observed: 459.91 ft at 9:30AM Jul 21, 2016Observed: 459.93 ft at 9:45AM Jul 21, 2016Observed: 459.93 ft at 10:00AM Jul 21, 2016Observed: 459.92 ft at 10:15AM Jul 21, 2016Observed: 459.91 ft at 10:30AM Jul 21, 2016Observed: 459.9 ft at 10:45AM Jul 21, 2016Observed: 459.89 ft at 11:00AM Jul 21, 2016Observed: 459.88 ft at 11:15AM Jul 21, 2016Observed: 459.88 ft at 11:30AM Jul 21, 2016Observed: 459.87 ft at 12:45PM Jul 21, 2016Observed: 459.89 ft at 1:00PM Jul 21, 2016Observed: 459.88 ft at 1:15PM Jul 21, 2016Observed: 459.87 ft at 1:30PM Jul 21, 2016Observed: 459.88 ft at 1:45PM Jul 21, 2016Observed: 459.89 ft at 2:00PM Jul 21, 2016Observed: 459.88 ft at 2:15PM Jul 21, 2016Observed: 459.87 ft at 2:30PM Jul 21, 2016Observed: 459.87 ft at 2:45PM Jul 21, 2016Observed: 459.87 ft at 3:00PM Jul 21, 2016Observed: 459.87 ft at 3:15PM Jul 21, 2016Observed: 459.87 ft at 3:30PM Jul 21, 2016Observed: 459.86 ft at 3:45PM Jul 21, 2016Observed: 459.87 ft at 4:00PM Jul 21, 2016Observed: 459.86 ft at 4:15PM Jul 21, 2016Observed: 459.87 ft at 4:30PM Jul 21, 2016Observed: 459.87 ft at 4:45PM Jul 21, 2016Observed: 459.86 ft at 5:00PM Jul 21, 2016Observed: 459.87 ft at 5:15PM Jul 21, 2016Observed: 459.86 ft at 5:30PM Jul 21, 2016Observed: 459.87 ft at 5:45PM Jul 21, 2016Observed: 459.87 ft at 6:00PM Jul 21, 2016Observed: 459.86 ft at 6:15PM Jul 21, 2016Observed: 459.86 ft at 6:30PM Jul 21, 2016Observed: 459.86 ft at 6:45PM Jul 21, 2016Observed: 459.86 ft at 7:00PM Jul 21, 2016Observed: 459.86 ft at 7:15PM Jul 21, 2016Observed: 459.86 ft at 7:30PM Jul 21, 2016Observed: 459.86 ft at 7:45PM Jul 21, 2016Observed: 459.87 ft at 8:00PM Jul 21, 2016Observed: 459.88 ft at 8:15PM Jul 21, 2016Observed: 459.9 ft at 8:30PM Jul 21, 2016Observed: 459.91 ft at 8:45PM Jul 21, 2016Observed: 459.93 ft at 9:00PM Jul 21, 2016Observed: 460.01 ft at 9:15PM Jul 21, 2016Observed: 460 ft at 9:30PM Jul 21, 2016Observed: 459.97 ft at 9:45PM Jul 21, 2016Observed: 459.96 ft at 10:00PM Jul 21, 2016Observed: 460.63 ft at 10:15PM Jul 21, 2016Observed: 460.39 ft at 10:30PM Jul 21, 2016Observed: 460.32 ft at 10:45PM Jul 21, 2016Observed: 460.16 ft at 11:00PM Jul 21, 2016Observed: 460.08 ft at 11:15PM Jul 21, 2016Observed: 460.07 ft at 11:30PM Jul 21, 2016Observed: 460.05 ft at 11:45PM Jul 21, 2016Observed: 460.03 ft at 12:00AM Jul 22, 2016Observed: 460.02 ft at 12:15AM Jul 22, 2016Observed: 460.01 ft at 12:30AM Jul 22, 2016Observed: 460.02 ft at 12:45AM Jul 22, 2016Observed: 460.02 ft at 1:00AM Jul 22, 2016Observed: 460.01 ft at 1:15AM Jul 22, 2016Observed: 460.02 ft at 1:30AM Jul 22, 2016Observed: 460.01 ft at 1:45AM Jul 22, 2016Observed: 460.07 ft at 2:00AM Jul 22, 2016Observed: 460.06 ft at 2:15AM Jul 22, 2016Observed: 460.06 ft at 2:30AM Jul 22, 2016Observed: 460.05 ft at 2:45AM Jul 22, 2016Observed: 460.06 ft at 3:00AM Jul 22, 2016Observed: 460.07 ft at 3:15AM Jul 22, 2016Observed: 460.04 ft at 3:30AM Jul 22, 2016Observed: 460.01 ft at 3:45AM Jul 22, 2016Observed: 460 ft at 4:00AM Jul 22, 2016Observed: 459.99 ft at 4:15AM Jul 22, 2016Observed: 459.99 ft at 4:30AM Jul 22, 2016Observed: 459.98 ft at 4:45AM Jul 22, 2016Observed: 459.98 ft at 5:00AM Jul 22, 2016Observed: 459.97 ft at 5:15AM Jul 22, 2016Observed: 459.97 ft at 5:30AM Jul 22, 2016Observed: 459.97 ft at 5:45AM Jul 22, 2016Observed: 459.97 ft at 6:00AM Jul 22, 2016Observed: 459.99 ft at 6:15AM Jul 22, 2016Observed: 459.98 ft at 6:30AM Jul 22, 2016Observed: 459.96 ft at 6:45AM Jul 22, 2016Observed: 459.96 ft at 7:00AM Jul 22, 2016Observed: 459.96 ft at 7:15AM Jul 22, 2016Observed: 459.97 ft at 7:30AM Jul 22, 2016Observed: 459.99 ft at 7:45AM Jul 22, 2016Observed: 460 ft at 8:00AM Jul 22, 2016Observed: 460.02 ft at 8:15AM Jul 22, 2016Observed: 460.05 ft at 8:30AM Jul 22, 2016Observed: 460.06 ft at 8:45AM Jul 22, 2016Observed: 460.09 ft at 9:00AM Jul 22, 2016Observed: 460.11 ft at 9:15AM Jul 22, 2016Observed: 460.13 ft at 9:30AM Jul 22, 2016Observed: 460.14 ft at 9:45AM Jul 22, 2016Observed: 460.16 ft at 10:00AM Jul 22, 2016Observed: 460.16 ft at 10:15AM Jul 22, 2016Observed: 460.17 ft at 10:30AM Jul 22, 2016Observed: 460.19 ft at 10:45AM Jul 22, 2016Observed: 460.18 ft at 11:00AM Jul 22, 2016Observed: 460.17 ft at 11:15AM Jul 22, 2016Observed: 460.2 ft at 11:30AM Jul 22, 2016Observed: 460.17 ft at 11:45AM Jul 22, 2016Observed: 460.18 ft at 12:00PM Jul 22, 2016Observed: 460.19 ft at 12:15PM Jul 22, 2016Observed: 460.16 ft at 12:30PM Jul 22, 2016Observed: 460.15 ft at 12:45PM Jul 22, 2016Observed: 460.17 ft at 1:00PM Jul 22, 2016Observed: 460.11 ft at 1:15PM Jul 22, 2016Observed: 460.13 ft at 1:30PM Jul 22, 2016Observed: 460.13 ft at 1:45PM Jul 22, 2016Observed: 460.15 ft at 2:00PM Jul 22, 2016Observed: 460.14 ft at 2:15PM Jul 22, 2016Observed: 460.13 ft at 2:30PM Jul 22, 2016Observed: 460.1 ft at 2:45PM Jul 22, 2016Observed: 460.09 ft at 3:00PM Jul 22, 2016Observed: 460.01 ft at 3:15PM Jul 22, 2016Observed: 460.09 ft at 3:30PM Jul 22, 2016Observed: 460.08 ft at 3:45PM Jul 22, 2016Observed: 460.08 ft at 4:00PM Jul 22, 2016Observed: 460.1 ft at 4:15PM Jul 22, 2016Observed: 460.11 ft at 4:30PM Jul 22, 2016Observed: 460.13 ft at 4:45PM Jul 22, 2016Observed: 460.16 ft at 5:00PM Jul 22, 2016Observed: 460.21 ft at 5:15PM Jul 22, 2016Observed: 460.2 ft at 5:30PM Jul 22, 2016Observed: 460.22 ft at 5:45PM Jul 22, 2016Observed: 460.22 ft at 6:00PM Jul 22, 2016Observed: 460.23 ft at 6:15PM Jul 22, 2016Observed: 460.26 ft at 6:30PM Jul 22, 2016Observed: 460.27 ft at 6:45PM Jul 22, 2016Observed: 460.28 ft at 7:00PM Jul 22, 2016Observed: 460.28 ft at 7:15PM Jul 22, 2016Observed: 460.28 ft at 7:30PM Jul 22, 2016Observed: 460.28 ft at 7:45PM Jul 22, 2016Observed: 460.27 ft at 8:00PM Jul 22, 2016Observed: 460.27 ft at 8:15PM Jul 22, 2016Observed: 460.27 ft at 8:30PM Jul 22, 2016Observed: 460.29 ft at 8:45PM Jul 22, 2016Observed: 460.27 ft at 9:00PM Jul 22, 2016Observed: 460.28 ft at 9:15PM Jul 22, 2016Observed: 460.27 ft at 9:30PM Jul 22, 2016Observed: 460.26 ft at 9:45PM Jul 22, 2016Observed: 460.28 ft at 10:00PM Jul 22, 2016Observed: 460.27 ft at 10:15PM Jul 22, 2016Observed: 460.27 ft at 10:30PM Jul 22, 2016Observed: 460.34 ft at 10:45PM Jul 22, 2016Observed: 460.28 ft at 11:00PM Jul 22, 2016Observed: 460.28 ft at 11:15PM Jul 22, 2016Observed: 460.26 ft at 11:30PM Jul 22, 2016Observed: 460.29 ft at 11:45PM Jul 22, 2016Observed: 460.2 ft at 12:00AM Jul 23, 2016Observed: 460.32 ft at 12:15AM Jul 23, 2016Observed: 460.3 ft at 12:30AM Jul 23, 2016Observed: 460.29 ft at 12:45AM Jul 23, 2016Observed: 460.28 ft at 1:00AM Jul 23, 2016Observed: 460.3 ft at 1:15AM Jul 23, 2016Observed: 460.3 ft at 1:30AM Jul 23, 2016Observed: 460.29 ft at 1:45AM Jul 23, 2016Observed: 460.29 ft at 2:00AM Jul 23, 2016Observed: 460.28 ft at 2:15AM Jul 23, 2016Observed: 460.3 ft at 2:30AM Jul 23, 2016Observed: 460.29 ft at 2:45AM Jul 23, 2016Observed: 460.29 ft at 3:00AM Jul 23, 2016Observed: 460.29 ft at 3:15AM Jul 23, 2016Observed: 460.29 ft at 3:30AM Jul 23, 2016Observed: 460.2 ft at 3:45AM Jul 23, 2016Observed: 460.22 ft at 4:00AM Jul 23, 2016Observed: 460.24 ft at 4:15AM Jul 23, 2016Observed: 460.26 ft at 4:30AM Jul 23, 2016Observed: 460.27 ft at 4:45AM Jul 23, 2016Observed: 460.29 ft at 5:00AM Jul 23, 2016Observed: 460.29 ft at 5:15AM Jul 23, 2016Observed: 460.27 ft at 5:30AM Jul 23, 2016Observed: 460.26 ft at 5:45AM Jul 23, 2016Observed: 460.26 ft at 6:00AM Jul 23, 2016Observed: 460.28 ft at 6:15AM Jul 23, 2016Observed: 460.29 ft at 6:30AM Jul 23, 2016Observed: 460.28 ft at 6:45AM Jul 23, 2016Observed: 460.28 ft at 7:00AM Jul 23, 2016Observed: 460.28 ft at 7:15AM Jul 23, 2016Observed: 460.27 ft at 7:30AM Jul 23, 2016Observed: 460.27 ft at 7:45AM Jul 23, 2016Observed: 460.27 ft at 8:00AM Jul 23, 2016Observed: 460.33 ft at 8:15AM Jul 23, 2016Observed: 460.26 ft at 8:30AM Jul 23, 2016Observed: 460.28 ft at 8:45AM Jul 23, 2016Observed: 460.27 ft at 9:00AM Jul 23, 2016Observed: 460.26 ft at 9:15AM Jul 23, 2016Observed: 460.26 ft at 9:30AM Jul 23, 2016Observed: 460.26 ft at 9:45AM Jul 23, 2016Observed: 460.26 ft at 10:00AM Jul 23, 2016Observed: 460.31 ft at 10:15AM Jul 23, 2016Observed: 460.24 ft at 10:30AM Jul 23, 2016Observed: 460.27 ft at 10:45AM Jul 23, 2016Observed: 460.25 ft at 11:00AM Jul 23, 2016Observed: 460.27 ft at 11:15AM Jul 23, 2016Observed: 460.25 ft at 11:30AM Jul 23, 2016Observed: 460.23 ft at 11:45AM Jul 23, 2016Observed: 460.23 ft at 12:00PM Jul 23, 2016Observed: 460.22 ft at 12:15PM Jul 23, 2016Observed: 460.22 ft at 12:30PM Jul 23, 2016Observed: 460.21 ft at 12:45PM Jul 23, 2016Observed: 460.22 ft at 1:00PM Jul 23, 2016Observed: 460.2 ft at 1:15PM Jul 23, 2016Observed: 460.2 ft at 1:30PM Jul 23, 2016Observed: 460.18 ft at 1:45PM Jul 23, 2016Observed: 460.17 ft at 2:00PM Jul 23, 2016Observed: 460.17 ft at 2:15PM Jul 23, 2016Observed: 460.14 ft at 2:30PM Jul 23, 2016Observed: 460.15 ft at 2:45PM Jul 23, 2016Observed: 460.13 ft at 3:00PM Jul 23, 2016Observed: 460.12 ft at 3:15PM Jul 23, 2016Observed: 460.09 ft at 3:30PM Jul 23, 2016Observed: 460.08 ft at 3:45PM Jul 23, 2016Observed: 460.02 ft at 4:00PM Jul 23, 2016Observed: 460.01 ft at 4:15PM Jul 23, 2016Observed: 460.1 ft at 4:30PM Jul 23, 2016Observed: 460 ft at 4:45PM Jul 23, 2016Observed: 459.99 ft at 5:00PM Jul 23, 2016Observed: 459.98 ft at 5:15PM Jul 23, 2016Observed: 459.97 ft at 5:30PM Jul 23, 2016Observed: 460.07 ft at 5:45PM Jul 23, 2016Observed: 459.91 ft at 6:00PM Jul 23, 2016Observed: 459.91 ft at 6:15PM Jul 23, 2016Observed: 459.91 ft at 6:30PM Jul 23, 2016Observed: 459.9 ft at 6:45PM Jul 23, 2016Observed: 459.89 ft at 7:00PM Jul 23, 2016Observed: 459.89 ft at 7:15PM Jul 23, 2016Observed: 459.88 ft at 7:30PM Jul 23, 2016Observed: 459.88 ft at 7:45PM Jul 23, 2016Observed: 459.87 ft at 8:00PM Jul 23, 2016Observed: 459.88 ft at 8:15PM Jul 23, 2016Observed: 459.88 ft at 8:30PM Jul 23, 2016Observed: 459.88 ft at 8:45PM Jul 23, 2016Observed: 459.88 ft at 9:00PM Jul 23, 2016Observed: 459.87 ft at 9:15PM Jul 23, 2016Observed: 459.88 ft at 9:30PM Jul 23, 2016Observed: 459.88 ft at 9:45PM Jul 23, 2016Observed: 459.88 ft at 10:00PM Jul 23, 2016Observed: 459.88 ft at 10:15PM Jul 23, 2016Observed: 459.88 ft at 10:30PM Jul 23, 2016Observed: 459.89 ft at 10:45PM Jul 23, 2016Observed: 459.88 ft at 11:00PM Jul 23, 2016Observed: 459.88 ft at 11:15PM Jul 23, 2016Observed: 459.88 ft at 11:30PM Jul 23, 2016Observed: 459.89 ft at 11:45PM Jul 23, 2016Observed: 459.89 ft at 12:00AM Jul 24, 2016Observed: 459.92 ft at 12:15AM Jul 24, 2016Observed: 459.91 ft at 12:30AM Jul 24, 2016Observed: 459.94 ft at 12:45AM Jul 24, 2016Observed: 459.96 ft at 1:00AM Jul 24, 2016Observed: 459.98 ft at 1:15AM Jul 24, 2016Observed: 460.07 ft at 1:30AM Jul 24, 2016Observed: 460.05 ft at 1:45AM Jul 24, 2016Observed: 460.06 ft at 2:00AM Jul 24, 2016Observed: 460.05 ft at 2:15AM Jul 24, 2016Observed: 460.05 ft at 2:30AM Jul 24, 2016Observed: 460.04 ft at 2:45AM Jul 24, 2016Observed: 460.03 ft at 3:00AM Jul 24, 2016Observed: 460.03 ft at 3:15AM Jul 24, 2016Observed: 460.04 ft at 3:30AM Jul 24, 2016Observed: 460.13 ft at 3:45AM Jul 24, 2016Observed: 460.05 ft at 4:00AM Jul 24, 2016Observed: 460.08 ft at 4:15AM Jul 24, 2016Observed: 460.14 ft at 4:30AM Jul 24, 2016Observed: 460.16 ft at 4:45AM Jul 24, 2016Observed: 460.17 ft at 5:00AM Jul 24, 2016Observed: 460.24 ft at 5:15AM Jul 24, 2016Observed: 460.23 ft at 5:30AM Jul 24, 2016Observed: 460.24 ft at 5:45AM Jul 24, 2016Observed: 460.25 ft at 6:00AM Jul 24, 2016Observed: 460.27 ft at 6:15AM Jul 24, 2016Observed: 460.33 ft at 6:30AM Jul 24, 2016Observed: 460.35 ft at 6:45AM Jul 24, 2016Observed: 460.45 ft at 7:00AM Jul 24, 2016Observed: 460.53 ft at 7:15AM Jul 24, 2016Observed: 460.55 ft at 7:30AM Jul 24, 2016Observed: 460.57 ft at 7:45AM Jul 24, 2016Observed: 460.59 ft at 8:00AM Jul 24, 2016Observed: 460.62 ft at 8:15AM Jul 24, 2016Observed: 460.64 ft at 8:30AM Jul 24, 2016Observed: 460.67 ft at 8:45AM Jul 24, 2016Observed: 460.69 ft at 9:00AM Jul 24, 2016Observed: 460.72 ft at 9:15AM Jul 24, 2016Observed: 460.74 ft at 9:30AM Jul 24, 2016Observed: 460.76 ft at 9:45AM Jul 24, 2016Observed: 460.84 ft at 10:00AM Jul 24, 2016Observed: 460.85 ft at 10:15AM Jul 24, 2016Observed: 460.85 ft at 10:30AM Jul 24, 2016Observed: 460.85 ft at 10:45AM Jul 24, 2016Observed: 460.85 ft at 11:00AM Jul 24, 2016Observed: 460.86 ft at 11:15AM Jul 24, 2016Observed: 460.87 ft at 11:30AM Jul 24, 2016Observed: 460.88 ft at 11:45AM Jul 24, 2016Observed: 460.89 ft at 12:00PM Jul 24, 2016Observed: 460.9 ft at 12:15PM Jul 24, 2016Observed: 460.91 ft at 12:30PM Jul 24, 2016Observed: 460.93 ft at 12:45PM Jul 24, 2016Observed: 460.94 ft at 1:00PM Jul 24, 2016Observed: 460.94 ft at 1:15PM Jul 24, 2016Observed: 460.96 ft at 1:30PM Jul 24, 2016Observed: 460.97 ft at 1:45PM Jul 24, 2016Observed: 460.99 ft at 2:00PM Jul 24, 2016Observed: 461.01 ft at 2:15PM Jul 24, 2016Observed: 461.03 ft at 2:30PM Jul 24, 2016Observed: 461.04 ft at 2:45PM Jul 24, 2016Observed: 461.05 ft at 3:00PM Jul 24, 2016Observed: 461.06 ft at 3:15PM Jul 24, 2016Observed: 461.08 ft at 3:30PM Jul 24, 2016Observed: 461.08 ft at 3:45PM Jul 24, 2016Observed: 461.08 ft at 4:00PM Jul 24, 2016Observed: 461.09 ft at 4:15PM Jul 24, 2016Observed: 461.11 ft at 4:30PM Jul 24, 2016Observed: 461.17 ft at 4:45PM Jul 24, 2016Observed: 461.16 ft at 5:00PM Jul 24, 2016Observed: 461.16 ft at 5:15PM Jul 24, 2016Observed: 461.16 ft at 5:30PM Jul 24, 2016Observed: 461.16 ft at 5:45PM Jul 24, 2016Observed: 461.17 ft at 6:00PM Jul 24, 2016Observed: 461.2 ft at 6:15PM Jul 24, 2016Observed: 461.21 ft at 6:30PM Jul 24, 2016Observed: 461.21 ft at 6:45PM Jul 24, 2016Observed: 461.21 ft at 7:00PM Jul 24, 2016Observed: 461.21 ft at 7:15PM Jul 24, 2016Observed: 461.21 ft at 7:30PM Jul 24, 2016Observed: 461.21 ft at 7:45PM Jul 24, 2016Highest Observation: 461.22 ft at 8:00PM Jul 24, 2016Observed: 461.21 ft at 8:15PM Jul 24, 2016Observed: 461.2 ft at 8:30PM Jul 24, 2016Observed: 461.19 ft at 8:45PM Jul 24, 2016Observed: 461.18 ft at 9:00PM Jul 24, 2016Observed: 461.17 ft at 9:15PM Jul 24, 2016Observed: 461.15 ft at 9:30PM Jul 24, 2016Observed: 461.15 ft at 9:45PM Jul 24, 2016Observed: 461.13 ft at 10:00PM Jul 24, 2016Observed: 461.11 ft at 10:15PM Jul 24, 2016Observed: 461.05 ft at 10:30PM Jul 24, 2016Observed: 461.04 ft at 10:45PM Jul 24, 2016Observed: 461.03 ft at 11:00PM Jul 24, 2016Observed: 461.02 ft at 11:15PM Jul 24, 2016Observed: 460.99 ft at 11:30PM Jul 24, 2016Observed: 460.93 ft at 11:45PM Jul 24, 2016Observed: 460.92 ft at 12:00AM Jul 25, 2016Observed: 460.9 ft at 12:15AM Jul 25, 2016Observed: 460.89 ft at 12:30AM Jul 25, 2016Observed: 460.87 ft at 12:45AM Jul 25, 2016Observed: 460.87 ft at 1:00AM Jul 25, 2016Observed: 460.87 ft at 1:15AM Jul 25, 2016Observed: 460.88 ft at 1:30AM Jul 25, 2016Observed: 460.89 ft at 1:45AM Jul 25, 2016Observed: 460.89 ft at 2:00AM Jul 25, 2016Observed: 460.89 ft at 2:15AM Jul 25, 2016Observed: 460.88 ft at 2:30AM Jul 25, 2016Observed: 460.88 ft at 2:45AM Jul 25, 2016Observed: 460.88 ft at 3:00AM Jul 25, 2016Observed: 460.87 ft at 3:15AM Jul 25, 2016Observed: 460.87 ft at 3:30AM Jul 25, 2016Observed: 460.89 ft at 3:45AM Jul 25, 2016Observed: 460.9 ft at 4:00AM Jul 25, 2016Observed: 460.91 ft at 4:15AM Jul 25, 2016Observed: 460.92 ft at 4:30AM Jul 25, 2016Observed: 460.93 ft at 4:45AM Jul 25, 2016Observed: 460.94 ft at 5:00AM Jul 25, 2016Observed: 460.96 ft at 5:15AM Jul 25, 2016Observed: 460.97 ft at 5:30AM Jul 25, 2016Observed: 461 ft at 5:45AM Jul 25, 2016Observed: 460.99 ft at 6:00AM Jul 25, 2016Observed: 461.01 ft at 6:15AM Jul 25, 2016Observed: 461.04 ft at 6:30AM Jul 25, 2016Observed: 461.1 ft at 6:45AM Jul 25, 2016Observed: 461.1 ft at 7:00AM Jul 25, 2016Observed: 461.11 ft at 7:15AM Jul 25, 2016Observed: 461.13 ft at 7:30AM Jul 25, 2016Observed: 461.14 ft at 7:45AM Jul 25, 2016Observed: 461.14 ft at 8:00AM Jul 25, 2016Observed: 461.15 ft at 8:15AM Jul 25, 2016Observed: 461.16 ft at 8:30AM Jul 25, 2016Observed: 461.15 ft at 8:45AM Jul 25, 2016Observed: 461.15 ft at 9:00AM Jul 25, 2016Observed: 461.13 ft at 9:15AM Jul 25, 2016Observed: 461.11 ft at 9:30AM Jul 25, 2016Observed: 461.09 ft at 9:45AM Jul 25, 2016Observed: 461.07 ft at 10:00AM Jul 25, 2016Observed: 461.05 ft at 10:15AM Jul 25, 2016Observed: 461.03 ft at 10:30AM Jul 25, 2016Observed: 461.01 ft at 10:45AM Jul 25, 2016Observed: 460.99 ft at 11:00AM Jul 25, 2016Observed: 460.97 ft at 11:15AM Jul 25, 2016Observed: 460.95 ft at 11:30AM Jul 25, 2016Observed: 460.96 ft at 11:45AM Jul 25, 2016Observed: 460.94 ft at 12:00PM Jul 25, 2016Observed: 460.92 ft at 12:15PM Jul 25, 2016Observed: 460.9 ft at 12:30PM Jul 25, 2016Observed: 460.88 ft at 12:45PM Jul 25, 2016Observed: 460.82 ft at 1:00PM Jul 25, 2016Observed: 460.8 ft at 1:15PM Jul 25, 2016Observed: 460.77 ft at 1:30PM Jul 25, 2016Observed: 460.71 ft at 1:45PM Jul 25, 2016Observed: 460.72 ft at 2:00PM Jul 25, 2016Observed: 460.71 ft at 2:15PM Jul 25, 2016Observed: 460.7 ft at 2:30PM Jul 25, 2016Observed: 460.68 ft at 2:45PM Jul 25, 2016Observed: 460.66 ft at 3:00PM Jul 25, 2016Observed: 460.64 ft at 3:15PM Jul 25, 2016Observed: 460.64 ft at 3:30PM Jul 25, 2016Observed: 460.62 ft at 3:45PM Jul 25, 2016Observed: 460.6 ft at 4:00PM Jul 25, 2016Observed: 460.57 ft at 4:15PM Jul 25, 2016Observed: 460.51 ft at 4:30PM Jul 25, 2016Observed: 460.5 ft at 4:45PM Jul 25, 2016Observed: 460.48 ft at 5:00PM Jul 25, 2016Observed: 460.47 ft at 5:15PM Jul 25, 2016Observed: 460.45 ft at 5:30PM Jul 25, 2016Observed: 460.44 ft at 5:45PM Jul 25, 2016Observed: 460.43 ft at 6:00PM Jul 25, 2016Observed: 460.42 ft at 6:15PM Jul 25, 2016Observed: 460.41 ft at 6:30PM Jul 25, 2016Observed: 460.4 ft at 6:45PM Jul 25, 2016Observed: 460.4 ft at 7:00PM Jul 25, 2016Observed: 460.4 ft at 7:15PM Jul 25, 2016Observed: 460.39 ft at 7:30PM Jul 25, 2016Observed: 460.39 ft at 7:45PM Jul 25, 2016Observed: 460.39 ft at 8:00PM Jul 25, 2016Observed: 460.39 ft at 8:15PM Jul 25, 2016Observed: 460.4 ft at 8:30PM Jul 25, 2016Observed: 460.4 ft at 8:45PM Jul 25, 2016Observed: 460.4 ft at 9:00PM Jul 25, 2016Observed: 460.41 ft at 9:15PM Jul 25, 2016Observed: 460.41 ft at 9:30PM Jul 25, 2016Observed: 460.41 ft at 9:45PM Jul 25, 2016Observed: 460.41 ft at 10:00PM Jul 25, 2016Observed: 460.4 ft at 10:15PM Jul 25, 2016Observed: 460.39 ft at 10:30PM Jul 25, 2016Observed: 460.41 ft at 10:45PM Jul 25, 2016Observed: 460.39 ft at 11:00PM Jul 25, 2016Observed: 460.38 ft at 11:15PM Jul 25, 2016Observed: 460.38 ft at 11:30PM Jul 25, 2016Observed: 460.35 ft at 11:45PM Jul 25, 2016Observed: 460.33 ft at 12:00AM Jul 26, 2016Observed: 460.26 ft at 12:15AM Jul 26, 2016Observed: 460.25 ft at 12:30AM Jul 26, 2016Observed: 460.22 ft at 12:45AM Jul 26, 2016Observed: 460.2 ft at 1:00AM Jul 26, 2016Observed: 460.19 ft at 1:15AM Jul 26, 2016Observed: 460.18 ft at 1:30AM Jul 26, 2016Observed: 460.16 ft at 1:45AM Jul 26, 2016Observed: 460.1 ft at 2:00AM Jul 26, 2016Observed: 460.11 ft at 2:15AM Jul 26, 2016Observed: 460.22 ft at 2:30AM Jul 26, 2016Observed: 460.09 ft at 2:45AM Jul 26, 2016Observed: 460.1 ft at 3:00AM Jul 26, 2016Observed: 460.1 ft at 3:15AM Jul 26, 2016Observed: 460.08 ft at 3:30AM Jul 26, 2016Observed: 460.07 ft at 3:45AM Jul 26, 2016Observed: 460.05 ft at 4:00AM Jul 26, 2016Observed: 460.05 ft at 4:15AM Jul 26, 2016Observed: 460.16 ft at 4:30AM Jul 26, 2016Observed: 460.05 ft at 4:45AM Jul 26, 2016Observed: 460.05 ft at 5:00AM Jul 26, 2016Observed: 460.05 ft at 5:15AM Jul 26, 2016Observed: 460.05 ft at 5:30AM Jul 26, 2016Observed: 460.07 ft at 5:45AM Jul 26, 2016Observed: 460.05 ft at 6:00AM Jul 26, 2016Observed: 460.04 ft at 6:15AM Jul 26, 2016Observed: 460.05 ft at 6:30AM Jul 26, 2016Observed: 460.08 ft at 6:45AM Jul 26, 2016Observed: 460.08 ft at 7:00AM Jul 26, 2016Observed: 459.96 ft at 7:15AM Jul 26, 2016Observed: 460.05 ft at 7:30AM Jul 26, 2016Observed: 460.03 ft at 7:45AM Jul 26, 2016Observed: 460.03 ft at 8:00AM Jul 26, 2016Observed: 460.02 ft at 8:15AM Jul 26, 2016Observed: 460.1 ft at 8:30AM Jul 26, 2016Highest Forecast: 460 ft 1:00PM Jul 26, 2016Forecast: 459.9 ft 7:00PM Jul 26, 2016Forecast: 459.8 ft 1:00AM Jul 27, 2016Forecast: 459.7 ft 7:00AM Jul 27, 2016Forecast: 459.6 ft 1:00PM Jul 27, 2016Forecast: 459.5 ft 7:00PM Jul 27, 2016Forecast: 459.4 ft 1:00AM Jul 28, 2016Forecast: 459.3 ft 7:00AM Jul 28, 2016Forecast: 459.3 ft 1:00PM Jul 28, 2016Forecast: 459.2 ft 7:00PM Jul 28, 2016Forecast: 459.2 ft 1:00AM Jul 29, 2016Forecast: 459.2 ft 7:00AM Jul 29, 2016Forecast: 459.1 ft 1:00PM Jul 29, 2016Forecast: 459.1 ft 7:00PM Jul 29, 2016Forecast: 459.1 ft 1:00AM Jul 30, 2016Forecast: 459.1 ft 7:00AM Jul 30, 2016Forecast: 459.1 ft 1:00PM Jul 30, 2016Forecast: 459.1 ft 7:00PM Jul 30, 2016Forecast: 459.1 ft 1:00AM Jul 31, 2016Forecast: 459 ft 7:00AM Jul 31, 2016Forecast: 459 ft 1:00PM Jul 31, 2016Forecast: 459 ft 7:00PM Jul 31, 2016Forecast: 459 ft 1:00AM Aug 01, 2016Forecast: 459 ft 7:00AM Aug 01, 2016Forecast: 459 ft 1:00PM Aug 01, 2016Forecast: 459 ft 7:00PM Aug 01, 2016US Army Corps of EngineersOTWI2(plotting HGIRG) Graph Created (9:06AM Jul 26, 2016)ObservedForecast (issued 8:51PM Jul 25)Latest observed value: 460.1 ft at 8:30 AM CDT 26-Jul-2016. Flood Stage is 463 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Illinois River at Ottawa are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Marseilles lock/dam Upstream Gauge Downstream Gauge Downstream Gauge - at Starved Rock lock/dam
Flood Categories (in feet)
Major Flood Stage: 469
Moderate Flood Stage: 466
Flood Stage: 463
Action Stage: 461
Low Stage (in feet): 0

Historic Crests
(1) 473.72 ft on 04/19/2013
(2) 472.21 ft on 09/16/2008
(3) 470.23 ft on 03/11/2009
(4) 468.87 ft on 12/29/2008
(5) 468.06 ft on 12/30/2015 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 468.06 ft on 12/30/2015 (P)
(2) 467.86 ft on 06/17/2015 (P)
(3) 473.72 ft on 04/19/2013
(4) 464.29 ft on 06/24/2010
(5) 470.23 ft on 03/11/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

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Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
476 Water reaches top of Illinois River levee at Ottawa High School.
474.5 Water reaches top of Fox River levee at Ottawa High School.
471.5 Water reaches top of Illinois River levee at city of Ottawa waste water treatment plant.
470 St Elizabeth Medical Center in Ottawa loading dock and property are threatened.
468.8 Water reaches top of Fox River bank at YMCA.
468.1 River rescue squad threatened.
467 Green St at Shoreline Boat Club flooded.
466.4 Water reaches top of Fox River bank at Hudson St river walk.
465.3 Hudson St at Marquette football field is threatened.
463.9 Water reaches top of Fox River bank at St Elizabeth Medical Center in Ottawa.
462.4 Allen Park entrance threatened and West boat ramp is submerged.
460.8 River Rescue emergency boat dock is submerged. Ottawa High School begins flood fighting.
Photos
(1) Gage equipment located on top of levee near mouth of Fox River.
(2) Levee at Ottawa High School.
(3) Looking downstream from atop levee 9/3/2009. Gage height 459.80 ft.
(4) Looking upstream from atop levee 9/3/2009. Gage height 459.80 ft.
About This Location Collapse

Latitude: 41.344444° N, Longitude: 88.839167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 463 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
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Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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Page last modified: 13-Aug-2015 1:56 AM
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