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Mapping
Illinois River at Ottawa Stage (ft)Observed: 459.46 ft at 3:00AM Jul 15, 2019Observed: 459.49 ft at 3:15AM Jul 15, 2019Observed: 459.59 ft at 3:30AM Jul 15, 2019Observed: 459.57 ft at 3:45AM Jul 15, 2019Observed: 459.56 ft at 4:00AM Jul 15, 2019Observed: 459.68 ft at 4:15AM Jul 15, 2019Observed: 459.67 ft at 4:30AM Jul 15, 2019Observed: 459.74 ft at 4:45AM Jul 15, 2019Observed: 459.73 ft at 5:00AM Jul 15, 2019Observed: 459.71 ft at 5:15AM Jul 15, 2019Observed: 459.71 ft at 5:30AM Jul 15, 2019Observed: 459.71 ft at 5:45AM Jul 15, 2019Observed: 459.71 ft at 6:00AM Jul 15, 2019Observed: 459.72 ft at 6:15AM Jul 15, 2019Observed: 459.75 ft at 6:30AM Jul 15, 2019Observed: 459.78 ft at 6:45AM Jul 15, 2019Observed: 459.8 ft at 7:00AM Jul 15, 2019Observed: 459.81 ft at 7:15AM Jul 15, 2019Observed: 459.81 ft at 7:30AM Jul 15, 2019Observed: 459.81 ft at 7:45AM Jul 15, 2019Observed: 459.82 ft at 8:00AM Jul 15, 2019Observed: 459.84 ft at 8:15AM Jul 15, 2019Observed: 459.84 ft at 8:30AM Jul 15, 2019Observed: 459.82 ft at 8:45AM Jul 15, 2019Observed: 459.8 ft at 9:00AM Jul 15, 2019Observed: 459.78 ft at 9:15AM Jul 15, 2019Observed: 459.75 ft at 9:30AM Jul 15, 2019Observed: 459.71 ft at 9:45AM Jul 15, 2019Observed: 459.67 ft at 10:00AM Jul 15, 2019Observed: 459.64 ft at 10:15AM Jul 15, 2019Observed: 459.61 ft at 10:30AM Jul 15, 2019Observed: 459.57 ft at 10:45AM Jul 15, 2019Observed: 459.51 ft at 11:00AM Jul 15, 2019Observed: 459.5 ft at 11:15AM Jul 15, 2019Observed: 459.47 ft at 11:30AM Jul 15, 2019Observed: 459.46 ft at 11:45AM Jul 15, 2019Observed: 459.44 ft at 12:00PM Jul 15, 2019Observed: 459.43 ft at 12:15PM Jul 15, 2019Observed: 459.41 ft at 12:30PM Jul 15, 2019Observed: 459.39 ft at 12:45PM Jul 15, 2019Observed: 459.38 ft at 1:00PM Jul 15, 2019Observed: 459.38 ft at 1:15PM Jul 15, 2019Observed: 459.43 ft at 1:30PM Jul 15, 2019Observed: 459.44 ft at 1:45PM Jul 15, 2019Observed: 459.44 ft at 2:00PM Jul 15, 2019Observed: 459.43 ft at 2:15PM Jul 15, 2019Observed: 459.44 ft at 2:30PM Jul 15, 2019Observed: 459.45 ft at 2:45PM Jul 15, 2019Observed: 459.45 ft at 3:00PM Jul 15, 2019Observed: 459.45 ft at 3:15PM Jul 15, 2019Observed: 459.44 ft at 3:30PM Jul 15, 2019Observed: 459.46 ft at 3:45PM Jul 15, 2019Observed: 459.46 ft at 4:00PM Jul 15, 2019Observed: 459.46 ft at 4:15PM Jul 15, 2019Observed: 459.46 ft at 4:30PM Jul 15, 2019Observed: 459.48 ft at 4:45PM Jul 15, 2019Observed: 459.48 ft at 5:00PM Jul 15, 2019Observed: 459.47 ft at 5:15PM Jul 15, 2019Observed: 459.48 ft at 5:30PM Jul 15, 2019Observed: 459.47 ft at 5:45PM Jul 15, 2019Observed: 459.47 ft at 6:00PM Jul 15, 2019Observed: 459.45 ft at 6:15PM Jul 15, 2019Observed: 459.42 ft at 6:30PM Jul 15, 2019Observed: 459.36 ft at 6:45PM Jul 15, 2019Observed: 459.44 ft at 7:00PM Jul 15, 2019Observed: 459.36 ft at 7:15PM Jul 15, 2019Observed: 459.34 ft at 7:30PM Jul 15, 2019Observed: 459.32 ft at 7:45PM Jul 15, 2019Observed: 459.3 ft at 8:00PM Jul 15, 2019Observed: 459.27 ft at 8:15PM Jul 15, 2019Observed: 459.23 ft at 8:30PM Jul 15, 2019Observed: 459.23 ft at 8:45PM Jul 15, 2019Observed: 459.26 ft at 9:00PM Jul 15, 2019Observed: 459.25 ft at 9:15PM Jul 15, 2019Observed: 459.27 ft at 9:30PM Jul 15, 2019Observed: 459.15 ft at 9:45PM Jul 15, 2019Observed: 459.16 ft at 10:00PM Jul 15, 2019Observed: 459.15 ft at 10:15PM Jul 15, 2019Observed: 459.14 ft at 10:30PM Jul 15, 2019Observed: 459.11 ft at 10:45PM Jul 15, 2019Observed: 459.16 ft at 11:00PM Jul 15, 2019Observed: 459.15 ft at 11:15PM Jul 15, 2019Observed: 459.13 ft at 11:30PM Jul 15, 2019Observed: 459.12 ft at 11:45PM Jul 15, 2019Observed: 459.1 ft at 12:00AM Jul 16, 2019Observed: 459.11 ft at 12:15AM Jul 16, 2019Observed: 459.19 ft at 12:30AM Jul 16, 2019Observed: 459.19 ft at 12:45AM Jul 16, 2019Observed: 459.17 ft at 1:00AM Jul 16, 2019Observed: 459.17 ft at 1:15AM Jul 16, 2019Observed: 459.18 ft at 1:30AM Jul 16, 2019Observed: 459.16 ft at 1:45AM Jul 16, 2019Observed: 459.18 ft at 2:00AM Jul 16, 2019Observed: 459.3 ft at 2:15AM Jul 16, 2019Observed: 459.28 ft at 2:30AM Jul 16, 2019Observed: 459.26 ft at 2:45AM Jul 16, 2019Observed: 459.24 ft at 3:00AM Jul 16, 2019Observed: 459.24 ft at 3:15AM Jul 16, 2019Observed: 459.26 ft at 3:30AM Jul 16, 2019Observed: 459.35 ft at 3:45AM Jul 16, 2019Observed: 459.29 ft at 4:00AM Jul 16, 2019Observed: 459.28 ft at 4:15AM Jul 16, 2019Observed: 459.27 ft at 4:30AM Jul 16, 2019Observed: 459.26 ft at 4:45AM Jul 16, 2019Observed: 459.26 ft at 5:00AM Jul 16, 2019Observed: 459.26 ft at 5:15AM Jul 16, 2019Observed: 459.27 ft at 5:30AM Jul 16, 2019Observed: 459.27 ft at 5:45AM Jul 16, 2019Observed: 459.3 ft at 6:00AM Jul 16, 2019Observed: 459.34 ft at 6:15AM Jul 16, 2019Observed: 459.37 ft at 6:30AM Jul 16, 2019Observed: 459.39 ft at 6:45AM Jul 16, 2019Observed: 459.43 ft at 7:00AM Jul 16, 2019Observed: 459.47 ft at 7:15AM Jul 16, 2019Observed: 459.54 ft at 7:30AM Jul 16, 2019Observed: 459.55 ft at 7:45AM Jul 16, 2019Observed: 459.57 ft at 8:00AM Jul 16, 2019Observed: 459.6 ft at 8:15AM Jul 16, 2019Observed: 459.64 ft at 8:30AM Jul 16, 2019Observed: 459.67 ft at 8:45AM Jul 16, 2019Observed: 459.7 ft at 9:00AM Jul 16, 2019Observed: 459.72 ft at 9:15AM Jul 16, 2019Observed: 459.75 ft at 9:30AM Jul 16, 2019Observed: 459.78 ft at 9:45AM Jul 16, 2019Observed: 459.8 ft at 10:00AM Jul 16, 2019Observed: 459.83 ft at 10:15AM Jul 16, 2019Observed: 459.85 ft at 10:30AM Jul 16, 2019Observed: 459.86 ft at 10:45AM Jul 16, 2019Observed: 459.89 ft at 11:00AM Jul 16, 2019Observed: 459.91 ft at 11:15AM Jul 16, 2019Observed: 459.94 ft at 11:30AM Jul 16, 2019Observed: 459.95 ft at 11:45AM Jul 16, 2019Observed: 459.96 ft at 12:00PM Jul 16, 2019Observed: 459.88 ft at 12:15PM Jul 16, 2019Observed: 459.87 ft at 12:30PM Jul 16, 2019Observed: 459.85 ft at 12:45PM Jul 16, 2019Observed: 459.79 ft at 1:00PM Jul 16, 2019Observed: 459.77 ft at 1:15PM Jul 16, 2019Observed: 459.75 ft at 1:30PM Jul 16, 2019Observed: 459.72 ft at 1:45PM Jul 16, 2019Observed: 459.68 ft at 2:00PM Jul 16, 2019Observed: 459.59 ft at 2:15PM Jul 16, 2019Observed: 459.57 ft at 2:30PM Jul 16, 2019Observed: 459.56 ft at 2:45PM Jul 16, 2019Observed: 459.54 ft at 3:00PM Jul 16, 2019Observed: 459.52 ft at 3:15PM Jul 16, 2019Observed: 459.48 ft at 3:30PM Jul 16, 2019Observed: 459.44 ft at 3:45PM Jul 16, 2019Observed: 459.37 ft at 4:00PM Jul 16, 2019Observed: 459.35 ft at 4:15PM Jul 16, 2019Observed: 459.31 ft at 4:30PM Jul 16, 2019Observed: 459.27 ft at 4:45PM Jul 16, 2019Observed: 459.24 ft at 5:00PM Jul 16, 2019Observed: 459.2 ft at 5:15PM Jul 16, 2019Observed: 459.17 ft at 5:30PM Jul 16, 2019Observed: 459.13 ft at 5:45PM Jul 16, 2019Observed: 459.1 ft at 6:00PM Jul 16, 2019Observed: 459.11 ft at 6:15PM Jul 16, 2019Observed: 459.12 ft at 6:30PM Jul 16, 2019Observed: 459.11 ft at 6:45PM Jul 16, 2019Observed: 459.12 ft at 7:00PM Jul 16, 2019Observed: 459.25 ft at 7:15PM Jul 16, 2019Observed: 459.22 ft at 7:30PM Jul 16, 2019Observed: 459.18 ft at 7:45PM Jul 16, 2019Observed: 459.16 ft at 8:00PM Jul 16, 2019Observed: 459.24 ft at 8:15PM Jul 16, 2019Observed: 459.22 ft at 8:30PM Jul 16, 2019Observed: 459.22 ft at 8:45PM Jul 16, 2019Observed: 459.22 ft at 9:00PM Jul 16, 2019Observed: 459.21 ft at 9:15PM Jul 16, 2019Observed: 459.22 ft at 9:30PM Jul 16, 2019Observed: 459.23 ft at 9:45PM Jul 16, 2019Observed: 459.25 ft at 10:00PM Jul 16, 2019Observed: 459.28 ft at 10:15PM Jul 16, 2019Observed: 459.29 ft at 10:30PM Jul 16, 2019Observed: 459.29 ft at 10:45PM Jul 16, 2019Observed: 459.36 ft at 11:00PM Jul 16, 2019Observed: 459.44 ft at 11:15PM Jul 16, 2019Observed: 459.44 ft at 11:30PM Jul 16, 2019Observed: 459.43 ft at 11:45PM Jul 16, 2019Observed: 459.44 ft at 12:00AM Jul 17, 2019Observed: 459.46 ft at 12:15AM Jul 17, 2019Observed: 459.47 ft at 12:30AM Jul 17, 2019Observed: 459.55 ft at 12:45AM Jul 17, 2019Observed: 459.58 ft at 1:00AM Jul 17, 2019Observed: 459.62 ft at 1:15AM Jul 17, 2019Observed: 459.63 ft at 1:30AM Jul 17, 2019Observed: 459.7 ft at 1:45AM Jul 17, 2019Observed: 459.73 ft at 2:00AM Jul 17, 2019Observed: 459.72 ft at 2:15AM Jul 17, 2019Observed: 459.7 ft at 2:30AM Jul 17, 2019Observed: 459.7 ft at 2:45AM Jul 17, 2019Observed: 459.71 ft at 3:00AM Jul 17, 2019Observed: 459.78 ft at 3:15AM Jul 17, 2019Observed: 459.76 ft at 3:30AM Jul 17, 2019Observed: 459.68 ft at 3:45AM Jul 17, 2019Observed: 459.66 ft at 4:00AM Jul 17, 2019Observed: 459.64 ft at 4:15AM Jul 17, 2019Observed: 459.61 ft at 4:30AM Jul 17, 2019Observed: 459.58 ft at 4:45AM Jul 17, 2019Observed: 459.58 ft at 5:00AM Jul 17, 2019Observed: 459.56 ft at 5:15AM Jul 17, 2019Observed: 459.53 ft at 5:30AM Jul 17, 2019Observed: 459.44 ft at 5:45AM Jul 17, 2019Observed: 459.43 ft at 6:00AM Jul 17, 2019Observed: 459.42 ft at 6:15AM Jul 17, 2019Observed: 459.39 ft at 6:30AM Jul 17, 2019Observed: 459.36 ft at 6:45AM Jul 17, 2019Observed: 459.33 ft at 7:00AM Jul 17, 2019Observed: 459.24 ft at 7:15AM Jul 17, 2019Observed: 459.23 ft at 7:30AM Jul 17, 2019Observed: 459.23 ft at 7:45AM Jul 17, 2019Observed: 459.19 ft at 8:00AM Jul 17, 2019Observed: 459.15 ft at 8:15AM Jul 17, 2019Observed: 459.07 ft at 8:30AM Jul 17, 2019Observed: 459.06 ft at 8:45AM Jul 17, 2019Observed: 459.03 ft at 9:00AM Jul 17, 2019Observed: 458.95 ft at 9:15AM Jul 17, 2019Observed: 458.93 ft at 9:30AM Jul 17, 2019Observed: 458.9 ft at 9:45AM Jul 17, 2019Observed: 458.82 ft at 10:00AM Jul 17, 2019Observed: 458.8 ft at 10:15AM Jul 17, 2019Observed: 458.77 ft at 10:30AM Jul 17, 2019Observed: 458.73 ft at 10:45AM Jul 17, 2019Observed: 458.7 ft at 11:00AM Jul 17, 2019Observed: 458.67 ft at 11:15AM Jul 17, 2019Observed: 458.59 ft at 11:30AM Jul 17, 2019Observed: 458.58 ft at 11:45AM Jul 17, 2019Observed: 458.58 ft at 12:00PM Jul 17, 2019Observed: 458.57 ft at 12:15PM Jul 17, 2019Observed: 458.55 ft at 12:30PM Jul 17, 2019Observed: 458.55 ft at 12:45PM Jul 17, 2019Observed: 458.57 ft at 1:00PM Jul 17, 2019Observed: 458.59 ft at 1:15PM Jul 17, 2019Observed: 458.61 ft at 1:30PM Jul 17, 2019Observed: 458.62 ft at 1:45PM Jul 17, 2019Observed: 458.6 ft at 2:00PM Jul 17, 2019Observed: 458.69 ft at 2:15PM Jul 17, 2019Observed: 458.69 ft at 2:30PM Jul 17, 2019Observed: 458.72 ft at 2:45PM Jul 17, 2019Observed: 458.83 ft at 3:00PM Jul 17, 2019Observed: 458.81 ft at 3:15PM Jul 17, 2019Observed: 458.89 ft at 3:30PM Jul 17, 2019Observed: 458.98 ft at 3:45PM Jul 17, 2019Observed: 459 ft at 4:00PM Jul 17, 2019Observed: 459.03 ft at 4:15PM Jul 17, 2019Observed: 459.04 ft at 4:30PM Jul 17, 2019Observed: 459.02 ft at 4:45PM Jul 17, 2019Observed: 459.01 ft at 5:00PM Jul 17, 2019Observed: 459.02 ft at 5:15PM Jul 17, 2019Observed: 459.03 ft at 5:30PM Jul 17, 2019Observed: 459.04 ft at 5:45PM Jul 17, 2019Observed: 459.07 ft at 6:00PM Jul 17, 2019Observed: 459.09 ft at 6:15PM Jul 17, 2019Observed: 459.09 ft at 6:30PM Jul 17, 2019Observed: 459.1 ft at 6:45PM Jul 17, 2019Observed: 459.17 ft at 7:00PM Jul 17, 2019Observed: 459.1 ft at 7:15PM Jul 17, 2019Observed: 459.08 ft at 7:30PM Jul 17, 2019Observed: 459.08 ft at 7:45PM Jul 17, 2019Observed: 459.1 ft at 8:00PM Jul 17, 2019Observed: 459.13 ft at 8:15PM Jul 17, 2019Observed: 459.23 ft at 8:30PM Jul 17, 2019Observed: 459.16 ft at 8:45PM Jul 17, 2019Observed: 459.18 ft at 9:00PM Jul 17, 2019Observed: 459.19 ft at 9:15PM Jul 17, 2019Observed: 459.2 ft at 9:30PM Jul 17, 2019Observed: 459.22 ft at 9:45PM Jul 17, 2019Observed: 459.32 ft at 10:00PM Jul 17, 2019Observed: 459.29 ft at 10:15PM Jul 17, 2019Observed: 459.27 ft at 10:30PM Jul 17, 2019Observed: 459.27 ft at 10:45PM Jul 17, 2019Observed: 459.28 ft at 11:00PM Jul 17, 2019Observed: 459.29 ft at 11:15PM Jul 17, 2019Observed: 459.35 ft at 11:30PM Jul 17, 2019Observed: 459.32 ft at 11:45PM Jul 17, 2019Observed: 459.3 ft at 12:00AM Jul 18, 2019Observed: 459.29 ft at 12:15AM Jul 18, 2019Observed: 459.29 ft at 12:30AM Jul 18, 2019Observed: 459.29 ft at 12:45AM Jul 18, 2019Observed: 459.31 ft at 1:00AM Jul 18, 2019Observed: 459.33 ft at 1:15AM Jul 18, 2019Observed: 459.33 ft at 1:30AM Jul 18, 2019Observed: 459.3 ft at 1:45AM Jul 18, 2019Observed: 459.3 ft at 2:00AM Jul 18, 2019Observed: 459.32 ft at 2:15AM Jul 18, 2019Observed: 459.33 ft at 2:30AM Jul 18, 2019Observed: 459.36 ft at 2:45AM Jul 18, 2019Observed: 459.38 ft at 3:00AM Jul 18, 2019Observed: 459.38 ft at 3:15AM Jul 18, 2019Observed: 459.38 ft at 3:30AM Jul 18, 2019Observed: 459.38 ft at 3:45AM Jul 18, 2019Observed: 459.39 ft at 4:00AM Jul 18, 2019Observed: 459.4 ft at 4:15AM Jul 18, 2019Observed: 459.4 ft at 4:30AM Jul 18, 2019Observed: 459.43 ft at 4:45AM Jul 18, 2019Observed: 459.46 ft at 5:00AM Jul 18, 2019Observed: 459.61 ft at 5:15AM Jul 18, 2019Observed: 459.6 ft at 5:30AM Jul 18, 2019Observed: 459.6 ft at 5:45AM Jul 18, 2019Observed: 459.62 ft at 6:00AM Jul 18, 2019Observed: 459.62 ft at 6:15AM Jul 18, 2019Observed: 459.64 ft at 6:30AM Jul 18, 2019Observed: 459.67 ft at 6:45AM Jul 18, 2019Observed: 459.69 ft at 7:00AM Jul 18, 2019Observed: 459.7 ft at 7:15AM Jul 18, 2019Observed: 459.72 ft at 7:30AM Jul 18, 2019Observed: 459.74 ft at 7:45AM Jul 18, 2019Observed: 459.76 ft at 8:00AM Jul 18, 2019Observed: 459.77 ft at 8:15AM Jul 18, 2019Observed: 459.78 ft at 8:30AM Jul 18, 2019Observed: 459.8 ft at 8:45AM Jul 18, 2019Observed: 459.83 ft at 9:00AM Jul 18, 2019Observed: 459.93 ft at 9:15AM Jul 18, 2019Observed: 459.93 ft at 9:30AM Jul 18, 2019Observed: 459.95 ft at 9:45AM Jul 18, 2019Observed: 459.97 ft at 10:00AM Jul 18, 2019Observed: 459.99 ft at 10:15AM Jul 18, 2019Observed: 460.01 ft at 10:30AM Jul 18, 2019Observed: 460.01 ft at 10:45AM Jul 18, 2019Observed: 459.99 ft at 11:00AM Jul 18, 2019Observed: 459.98 ft at 11:15AM Jul 18, 2019Observed: 459.98 ft at 11:30AM Jul 18, 2019Observed: 459.99 ft at 11:45AM Jul 18, 2019Observed: 459.99 ft at 12:00PM Jul 18, 2019Observed: 459.99 ft at 12:15PM Jul 18, 2019Observed: 459.98 ft at 12:30PM Jul 18, 2019Observed: 459.97 ft at 12:45PM Jul 18, 2019Observed: 459.97 ft at 1:00PM Jul 18, 2019Observed: 459.97 ft at 1:15PM Jul 18, 2019Observed: 459.99 ft at 1:30PM Jul 18, 2019Observed: 459.98 ft at 1:45PM Jul 18, 2019Observed: 459.96 ft at 2:00PM Jul 18, 2019Observed: 459.93 ft at 2:15PM Jul 18, 2019Observed: 459.9 ft at 2:30PM Jul 18, 2019Observed: 459.87 ft at 2:45PM Jul 18, 2019Observed: 459.83 ft at 3:00PM Jul 18, 2019Observed: 459.81 ft at 3:15PM Jul 18, 2019Observed: 459.78 ft at 3:30PM Jul 18, 2019Observed: 459.76 ft at 3:45PM Jul 18, 2019Observed: 459.75 ft at 4:00PM Jul 18, 2019Observed: 459.73 ft at 4:15PM Jul 18, 2019Observed: 459.71 ft at 4:30PM Jul 18, 2019Observed: 459.69 ft at 4:45PM Jul 18, 2019Observed: 459.68 ft at 5:00PM Jul 18, 2019Observed: 459.66 ft at 5:15PM Jul 18, 2019Observed: 459.64 ft at 5:30PM Jul 18, 2019Observed: 459.63 ft at 5:45PM Jul 18, 2019Observed: 459.6 ft at 6:00PM Jul 18, 2019Observed: 459.6 ft at 6:15PM Jul 18, 2019Observed: 459.57 ft at 6:30PM Jul 18, 2019Observed: 459.55 ft at 6:45PM Jul 18, 2019Observed: 459.53 ft at 7:00PM Jul 18, 2019Observed: 459.5 ft at 7:15PM Jul 18, 2019Observed: 459.49 ft at 7:30PM Jul 18, 2019Observed: 459.51 ft at 7:45PM Jul 18, 2019Observed: 459.45 ft at 8:00PM Jul 18, 2019Observed: 459.45 ft at 8:15PM Jul 18, 2019Observed: 459.45 ft at 8:30PM Jul 18, 2019Observed: 459.44 ft at 8:45PM Jul 18, 2019Observed: 459.45 ft at 9:00PM Jul 18, 2019Observed: 459.46 ft at 9:15PM Jul 18, 2019Observed: 459.49 ft at 9:30PM Jul 18, 2019Observed: 459.59 ft at 9:45PM Jul 18, 2019Observed: 459.59 ft at 10:00PM Jul 18, 2019Observed: 459.58 ft at 10:15PM Jul 18, 2019Observed: 459.64 ft at 10:30PM Jul 18, 2019Observed: 459.67 ft at 10:45PM Jul 18, 2019Observed: 459.7 ft at 11:00PM Jul 18, 2019Observed: 459.71 ft at 11:15PM Jul 18, 2019Observed: 459.72 ft at 11:30PM Jul 18, 2019Observed: 459.73 ft at 11:45PM Jul 18, 2019Observed: 459.77 ft at 12:00AM Jul 19, 2019Observed: 459.86 ft at 12:15AM Jul 19, 2019Observed: 459.84 ft at 12:30AM Jul 19, 2019Observed: 459.83 ft at 12:45AM Jul 19, 2019Observed: 459.83 ft at 1:00AM Jul 19, 2019Observed: 459.85 ft at 1:15AM Jul 19, 2019Observed: 459.93 ft at 1:30AM Jul 19, 2019Observed: 459.91 ft at 1:45AM Jul 19, 2019Observed: 459.91 ft at 2:00AM Jul 19, 2019Observed: 459.94 ft at 2:15AM Jul 19, 2019Observed: 459.94 ft at 2:30AM Jul 19, 2019Observed: 459.99 ft at 2:45AM Jul 19, 2019Observed: 459.97 ft at 3:00AM Jul 19, 2019Observed: 459.95 ft at 3:15AM Jul 19, 2019Observed: 459.93 ft at 3:30AM Jul 19, 2019Observed: 459.9 ft at 3:45AM Jul 19, 2019Observed: 459.84 ft at 4:00AM Jul 19, 2019Observed: 459.86 ft at 4:15AM Jul 19, 2019Observed: 459.84 ft at 4:30AM Jul 19, 2019Observed: 459.82 ft at 4:45AM Jul 19, 2019Observed: 459.79 ft at 5:00AM Jul 19, 2019Observed: 459.76 ft at 5:15AM Jul 19, 2019Observed: 459.76 ft at 5:30AM Jul 19, 2019Observed: 459.75 ft at 5:45AM Jul 19, 2019Observed: 459.72 ft at 6:00AM Jul 19, 2019Observed: 459.69 ft at 6:15AM Jul 19, 2019Observed: 459.66 ft at 6:30AM Jul 19, 2019Observed: 459.64 ft at 6:45AM Jul 19, 2019Observed: 459.63 ft at 7:00AM Jul 19, 2019Observed: 459.62 ft at 7:15AM Jul 19, 2019Observed: 459.64 ft at 7:30AM Jul 19, 2019Observed: 459.68 ft at 7:45AM Jul 19, 2019Observed: 459.71 ft at 8:00AM Jul 19, 2019Observed: 459.74 ft at 8:15AM Jul 19, 2019Observed: 459.76 ft at 8:30AM Jul 19, 2019Observed: 459.79 ft at 8:45AM Jul 19, 2019Observed: 459.8 ft at 9:00AM Jul 19, 2019Observed: 459.82 ft at 9:15AM Jul 19, 2019Observed: 459.84 ft at 9:30AM Jul 19, 2019Observed: 459.84 ft at 9:45AM Jul 19, 2019Observed: 459.86 ft at 10:00AM Jul 19, 2019Observed: 459.88 ft at 10:15AM Jul 19, 2019Observed: 459.96 ft at 10:30AM Jul 19, 2019Observed: 459.94 ft at 10:45AM Jul 19, 2019Observed: 459.94 ft at 11:00AM Jul 19, 2019Observed: 459.96 ft at 11:15AM Jul 19, 2019Observed: 459.97 ft at 11:30AM Jul 19, 2019Observed: 459.98 ft at 11:45AM Jul 19, 2019Observed: 459.99 ft at 12:00PM Jul 19, 2019Observed: 459.99 ft at 12:15PM Jul 19, 2019Observed: 459.99 ft at 12:30PM Jul 19, 2019Observed: 460 ft at 12:45PM Jul 19, 2019Observed: 460.01 ft at 1:00PM Jul 19, 2019Observed: 460.01 ft at 1:15PM Jul 19, 2019Observed: 460 ft at 1:30PM Jul 19, 2019Observed: 459.98 ft at 1:45PM Jul 19, 2019Observed: 459.97 ft at 2:00PM Jul 19, 2019Observed: 459.96 ft at 2:15PM Jul 19, 2019Observed: 459.95 ft at 2:30PM Jul 19, 2019Observed: 459.94 ft at 2:45PM Jul 19, 2019Observed: 459.97 ft at 3:00PM Jul 19, 2019Observed: 460 ft at 3:15PM Jul 19, 2019Observed: 460.01 ft at 3:30PM Jul 19, 2019Observed: 460.03 ft at 3:45PM Jul 19, 2019Observed: 460.04 ft at 4:00PM Jul 19, 2019Observed: 460.06 ft at 4:15PM Jul 19, 2019Observed: 460.06 ft at 4:30PM Jul 19, 2019Observed: 460.07 ft at 4:45PM Jul 19, 2019Observed: 460.08 ft at 5:00PM Jul 19, 2019Observed: 460.08 ft at 5:15PM Jul 19, 2019Observed: 460.1 ft at 5:30PM Jul 19, 2019Observed: 460.11 ft at 5:45PM Jul 19, 2019Observed: 460.11 ft at 6:00PM Jul 19, 2019Observed: 460.12 ft at 6:15PM Jul 19, 2019Observed: 460.12 ft at 6:30PM Jul 19, 2019Observed: 460.12 ft at 6:45PM Jul 19, 2019Observed: 460.12 ft at 7:00PM Jul 19, 2019Observed: 460.12 ft at 7:15PM Jul 19, 2019Observed: 460.14 ft at 7:30PM Jul 19, 2019Observed: 460.14 ft at 7:45PM Jul 19, 2019Observed: 460.15 ft at 8:00PM Jul 19, 2019Highest Observation: 460.17 ft at 8:15PM Jul 19, 2019Observed: 460.15 ft at 8:30PM Jul 19, 2019Observed: 460.12 ft at 8:45PM Jul 19, 2019Observed: 460.12 ft at 9:00PM Jul 19, 2019Observed: 460.14 ft at 9:15PM Jul 19, 2019Observed: 460.14 ft at 9:30PM Jul 19, 2019Observed: 460.13 ft at 9:45PM Jul 19, 2019Observed: 460.13 ft at 10:00PM Jul 19, 2019Observed: 460.14 ft at 10:15PM Jul 19, 2019Observed: 460.13 ft at 10:30PM Jul 19, 2019Observed: 460.14 ft at 10:45PM Jul 19, 2019Observed: 460.12 ft at 11:00PM Jul 19, 2019Observed: 460.09 ft at 11:15PM Jul 19, 2019Observed: 460.08 ft at 11:30PM Jul 19, 2019Observed: 460.08 ft at 11:45PM Jul 19, 2019Observed: 460.07 ft at 12:00AM Jul 20, 2019Observed: 460.06 ft at 12:15AM Jul 20, 2019Observed: 460.06 ft at 12:30AM Jul 20, 2019Observed: 460.06 ft at 12:45AM Jul 20, 2019Observed: 460.07 ft at 1:00AM Jul 20, 2019Observed: 460.08 ft at 1:15AM Jul 20, 2019Observed: 460.11 ft at 1:30AM Jul 20, 2019Observed: 460.11 ft at 1:45AM Jul 20, 2019Observed: 460.1 ft at 2:00AM Jul 20, 2019Observed: 460.11 ft at 2:15AM Jul 20, 2019Observed: 460.11 ft at 2:30AM Jul 20, 2019Observed: 460.12 ft at 2:45AM Jul 20, 2019Observed: 460.11 ft at 3:00AM Jul 20, 2019Observed: 460.09 ft at 3:15AM Jul 20, 2019Observed: 460.07 ft at 3:30AM Jul 20, 2019Observed: 460.07 ft at 3:45AM Jul 20, 2019Observed: 460.07 ft at 4:00AM Jul 20, 2019Observed: 460.07 ft at 4:15AM Jul 20, 2019Observed: 460.06 ft at 4:30AM Jul 20, 2019Observed: 460.05 ft at 4:45AM Jul 20, 2019Observed: 460.03 ft at 5:00AM Jul 20, 2019Observed: 460.03 ft at 5:15AM Jul 20, 2019Observed: 460.03 ft at 5:30AM Jul 20, 2019Observed: 460.03 ft at 5:45AM Jul 20, 2019Observed: 459.94 ft at 6:00AM Jul 20, 2019Observed: 460.07 ft at 6:15AM Jul 20, 2019Observed: 460.05 ft at 6:30AM Jul 20, 2019Observed: 460.05 ft at 6:45AM Jul 20, 2019Observed: 460.03 ft at 7:00AM Jul 20, 2019Observed: 460.03 ft at 7:15AM Jul 20, 2019Observed: 460.04 ft at 7:30AM Jul 20, 2019Observed: 460.03 ft at 7:45AM Jul 20, 2019Observed: 460.03 ft at 8:00AM Jul 20, 2019Observed: 460.03 ft at 8:15AM Jul 20, 2019Observed: 460.04 ft at 8:30AM Jul 20, 2019Observed: 460.05 ft at 8:45AM Jul 20, 2019Observed: 460.06 ft at 9:00AM Jul 20, 2019Observed: 460.05 ft at 9:15AM Jul 20, 2019Observed: 460.04 ft at 9:30AM Jul 20, 2019Observed: 460.05 ft at 9:45AM Jul 20, 2019Observed: 460.04 ft at 10:00AM Jul 20, 2019Observed: 460.04 ft at 10:15AM Jul 20, 2019Observed: 460.03 ft at 10:30AM Jul 20, 2019Observed: 460.03 ft at 10:45AM Jul 20, 2019Observed: 460.04 ft at 11:00AM Jul 20, 2019Observed: 460.03 ft at 11:15AM Jul 20, 2019Observed: 460.02 ft at 11:30AM Jul 20, 2019Observed: 460.01 ft at 11:45AM Jul 20, 2019Observed: 459.99 ft at 12:00PM Jul 20, 2019Observed: 459.98 ft at 12:15PM Jul 20, 2019Observed: 459.96 ft at 12:30PM Jul 20, 2019Observed: 459.93 ft at 12:45PM Jul 20, 2019Observed: 459.91 ft at 1:00PM Jul 20, 2019Observed: 459.9 ft at 1:15PM Jul 20, 2019Observed: 459.89 ft at 1:30PM Jul 20, 2019Observed: 459.88 ft at 1:45PM Jul 20, 2019Observed: 459.75 ft at 2:00PM Jul 20, 2019Observed: 459.83 ft at 2:15PM Jul 20, 2019Observed: 459.82 ft at 2:30PM Jul 20, 2019Observed: 459.82 ft at 2:45PM Jul 20, 2019Observed: 459.81 ft at 3:00PM Jul 20, 2019Observed: 459.8 ft at 3:15PM Jul 20, 2019Observed: 459.79 ft at 3:30PM Jul 20, 2019Observed: 459.78 ft at 3:45PM Jul 20, 2019Observed: 459.76 ft at 4:00PM Jul 20, 2019Observed: 459.74 ft at 4:15PM Jul 20, 2019Observed: 459.74 ft at 4:30PM Jul 20, 2019Observed: 459.73 ft at 4:45PM Jul 20, 2019Observed: 459.72 ft at 5:00PM Jul 20, 2019Observed: 459.71 ft at 5:15PM Jul 20, 2019Observed: 459.71 ft at 5:30PM Jul 20, 2019Observed: 459.71 ft at 5:45PM Jul 20, 2019Observed: 459.73 ft at 6:00PM Jul 20, 2019Observed: 459.84 ft at 6:15PM Jul 20, 2019Observed: 459.81 ft at 6:30PM Jul 20, 2019Observed: 459.78 ft at 6:45PM Jul 20, 2019Observed: 459.75 ft at 7:00PM Jul 20, 2019Observed: 459.74 ft at 7:15PM Jul 20, 2019Observed: 459.72 ft at 7:30PM Jul 20, 2019Observed: 459.74 ft at 7:45PM Jul 20, 2019Observed: 459.74 ft at 8:00PM Jul 20, 2019Observed: 459.74 ft at 8:15PM Jul 20, 2019Observed: 459.74 ft at 8:30PM Jul 20, 2019Observed: 459.82 ft at 8:45PM Jul 20, 2019Observed: 459.76 ft at 9:00PM Jul 20, 2019Observed: 459.76 ft at 9:15PM Jul 20, 2019Observed: 459.75 ft at 9:30PM Jul 20, 2019Observed: 459.74 ft at 9:45PM Jul 20, 2019Observed: 459.74 ft at 10:00PM Jul 20, 2019Observed: 459.75 ft at 10:15PM Jul 20, 2019Observed: 459.75 ft at 10:30PM Jul 20, 2019Observed: 459.77 ft at 10:45PM Jul 20, 2019Observed: 459.77 ft at 11:00PM Jul 20, 2019Observed: 459.75 ft at 11:15PM Jul 20, 2019Observed: 459.76 ft at 11:30PM Jul 20, 2019Observed: 459.75 ft at 11:45PM Jul 20, 2019Observed: 459.73 ft at 12:00AM Jul 21, 2019Observed: 459.7 ft at 12:15AM Jul 21, 2019Observed: 459.68 ft at 12:30AM Jul 21, 2019Observed: 459.66 ft at 12:45AM Jul 21, 2019Observed: 459.65 ft at 1:00AM Jul 21, 2019Observed: 459.65 ft at 1:15AM Jul 21, 2019Observed: 459.64 ft at 1:30AM Jul 21, 2019Observed: 459.63 ft at 1:45AM Jul 21, 2019Observed: 459.6 ft at 2:00AM Jul 21, 2019Observed: 459.61 ft at 2:15AM Jul 21, 2019Observed: 459.6 ft at 2:30AM Jul 21, 2019Observed: 459.57 ft at 2:45AM Jul 21, 2019Observed: 459.56 ft at 3:00AM Jul 21, 2019Observed: 459.53 ft at 3:15AM Jul 21, 2019Observed: 459.47 ft at 3:30AM Jul 21, 2019Observed: 459.55 ft at 3:45AM Jul 21, 2019Observed: 459.54 ft at 4:00AM Jul 21, 2019Observed: 459.53 ft at 4:15AM Jul 21, 2019Observed: 459.52 ft at 4:30AM Jul 21, 2019Observed: 459.55 ft at 4:45AM Jul 21, 2019Observed: 459.57 ft at 5:00AM Jul 21, 2019Observed: 459.56 ft at 5:15AM Jul 21, 2019Observed: 459.56 ft at 5:30AM Jul 21, 2019Observed: 459.55 ft at 5:45AM Jul 21, 2019Observed: 459.48 ft at 6:00AM Jul 21, 2019Observed: 459.51 ft at 6:15AM Jul 21, 2019Observed: 459.5 ft at 6:30AM Jul 21, 2019Observed: 459.51 ft at 6:45AM Jul 21, 2019Observed: 459.54 ft at 7:00AM Jul 21, 2019Observed: 459.56 ft at 7:15AM Jul 21, 2019Observed: 459.59 ft at 7:30AM Jul 21, 2019Observed: 459.61 ft at 7:45AM Jul 21, 2019Observed: 459.62 ft at 8:00AM Jul 21, 2019Observed: 459.62 ft at 8:15AM Jul 21, 2019Observed: 459.63 ft at 8:30AM Jul 21, 2019Observed: 459.65 ft at 8:45AM Jul 21, 2019Observed: 459.65 ft at 9:00AM Jul 21, 2019Observed: 459.66 ft at 9:15AM Jul 21, 2019Observed: 459.67 ft at 9:30AM Jul 21, 2019Observed: 459.68 ft at 9:45AM Jul 21, 2019Observed: 459.69 ft at 10:00AM Jul 21, 2019Observed: 459.7 ft at 10:15AM Jul 21, 2019Observed: 459.71 ft at 10:30AM Jul 21, 2019Observed: 459.71 ft at 10:45AM Jul 21, 2019Observed: 459.69 ft at 11:00AM Jul 21, 2019Observed: 459.7 ft at 11:15AM Jul 21, 2019Observed: 459.71 ft at 11:30AM Jul 21, 2019Observed: 459.72 ft at 11:45AM Jul 21, 2019Observed: 459.8 ft at 12:00PM Jul 21, 2019Observed: 459.83 ft at 12:15PM Jul 21, 2019Observed: 459.94 ft at 12:30PM Jul 21, 2019Observed: 459.96 ft at 12:45PM Jul 21, 2019Observed: 459.99 ft at 1:00PM Jul 21, 2019Observed: 459.99 ft at 1:15PM Jul 21, 2019Observed: 460.01 ft at 1:30PM Jul 21, 2019Observed: 460.02 ft at 1:45PM Jul 21, 2019Observed: 460.02 ft at 2:00PM Jul 21, 2019Observed: 459.99 ft at 2:15PM Jul 21, 2019Observed: 460.01 ft at 2:30PM Jul 21, 2019Observed: 460.02 ft at 2:45PM Jul 21, 2019Observed: 459.87 ft at 3:00PM Jul 21, 2019Observed: 459.97 ft at 3:15PM Jul 21, 2019Observed: 459.96 ft at 3:30PM Jul 21, 2019Observed: 459.94 ft at 3:45PM Jul 21, 2019Observed: 459.94 ft at 4:00PM Jul 21, 2019Observed: 459.92 ft at 4:15PM Jul 21, 2019Observed: 459.91 ft at 4:30PM Jul 21, 2019Observed: 459.9 ft at 4:45PM Jul 21, 2019Observed: 459.88 ft at 5:00PM Jul 21, 2019Observed: 459.85 ft at 5:15PM Jul 21, 2019Observed: 459.84 ft at 5:30PM Jul 21, 2019Observed: 459.81 ft at 5:45PM Jul 21, 2019Observed: 459.82 ft at 6:00PM Jul 21, 2019Observed: 459.81 ft at 6:15PM Jul 21, 2019Observed: 459.8 ft at 6:30PM Jul 21, 2019Observed: 459.78 ft at 6:45PM Jul 21, 2019Observed: 459.78 ft at 7:00PM Jul 21, 2019Observed: 459.76 ft at 7:15PM Jul 21, 2019Observed: 459.76 ft at 7:30PM Jul 21, 2019Observed: 459.79 ft at 7:45PM Jul 21, 2019Observed: 459.79 ft at 8:00PM Jul 21, 2019Observed: 459.79 ft at 8:15PM Jul 21, 2019Observed: 459.81 ft at 8:30PM Jul 21, 2019Observed: 459.89 ft at 8:45PM Jul 21, 2019Observed: 459.88 ft at 9:00PM Jul 21, 2019Observed: 459.86 ft at 9:15PM Jul 21, 2019Observed: 459.85 ft at 9:30PM Jul 21, 2019Observed: 459.92 ft at 9:45PM Jul 21, 2019Observed: 459.9 ft at 10:00PM Jul 21, 2019Observed: 459.9 ft at 10:15PM Jul 21, 2019Observed: 459.9 ft at 10:30PM Jul 21, 2019Observed: 459.89 ft at 10:45PM Jul 21, 2019Observed: 459.9 ft at 11:00PM Jul 21, 2019Observed: 459.99 ft at 11:15PM Jul 21, 2019Observed: 459.93 ft at 11:30PM Jul 21, 2019Observed: 459.94 ft at 11:45PM Jul 21, 2019Observed: 459.96 ft at 12:00AM Jul 22, 2019Observed: 459.97 ft at 12:15AM Jul 22, 2019Observed: 459.98 ft at 12:30AM Jul 22, 2019Observed: 460 ft at 12:45AM Jul 22, 2019Observed: 460.01 ft at 1:00AM Jul 22, 2019Observed: 460.02 ft at 1:15AM Jul 22, 2019Observed: 460.03 ft at 1:30AM Jul 22, 2019US Army Corps of EngineersOTWI2(plotting HGIRG) Graph Created (2:53AM Jul 22, 2019)ObservedLatest observed value: 460.03 ft at 1:30 AM CDT 22-Jul-2019. Flood Stage is 463 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NGVD29
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 (tailwater)
Flood Categories (in feet)
Major Flood Stage: 471
Moderate Flood Stage: 467
Flood Stage: 463
Action Stage: 461
Low Stage (in feet): -9999

Historic Crests
(1) 473.72 ft on 04/19/2013
(2) 472.21 ft on 09/16/2008
(3) 471.49 ft on 02/22/2018 (P)
(4) 470.83 ft on 05/02/2019
(5) 470.23 ft on 03/11/2009
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 470.83 ft on 05/02/2019
(2) 471.49 ft on 02/22/2018 (P)
(3) 463.65 ft on 10/16/2017 (P)
(4) 464.10 ft on 07/23/2017
(5) 466.46 ft on 05/02/2017
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.
Zoom Level:16
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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 the top of the levee at Ottawa High School.
475.5 Backwater causes the Fox River to reach the top of the flood protection wall south of Main Street near Ottawa High School. Water inundates lower-level of residences at Heritage Harbor east of Ottawa.
474.5 Backwater causes the Fox River to reach the top of the levee at Ottawa High School.
474 Structures threatened at Shoreline Boat Club in Ottawa. Main Street at Fox River in Ottawa is threatened and may be closed, blocking the last primary evacuation route for east Ottawa. Water overtops the berm at Waste Water Treatment Plant.
472 West parking lot of St. Elizabeth Medical Center in Ottawa is inundated.
471.5 Water reaches top of levee at Ottawa Waste Water Treatment Plant. Backwater causes the Fox River to inundate the YMCA parking lot in Ottawa.
470 Shabbona Street near Ottawa High School is inundated. St. Elizabeth Medical Center property in Ottawa is threatened including the loading dock areas.
469 Backwater causes the Fox River to reach bankfull near the YMCA in Ottawa.
468 River Rescue structure threatened in Ottawa.
467 Green Street near Shoreline Boat Club in Ottawa is inundated, blocking a primary evacuation route for east Ottawa.
466.5 Low-lying sections of Fox River Park in Ottawa are inundated including Hudson Street River Walk. St. Clair Street is threatened in Ottawa.
465.5 Low-lying property near St. Elizabeth Medical Center is threatened. Marquette High School football threatened.
465 Harbor Walk in Heritage Harbor east of Ottawa is inundated.
464 Backwater causes the Fox River to reach bankfull near St. Elizabeth Medical Center in Ottawa.
462.5 Roadway entrance to Allen Park threatened in Ottawa. Allen Park west boat ramp inundated in Ottawa.
461 River Rescue boat dock inundated in Ottawa.
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 463 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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Hydrologic Resources Additional Resources
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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