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Hydrograph River at a Glance Download
Chicago Sanitary and Ship Canal at Chicago (Western Ave) Stage (ft)Observed: -2.05 ft at 4:50AM Mar 23, 2024Observed: -2.02 ft at 5:00AM Mar 23, 2024Observed: -2.01 ft at 5:10AM Mar 23, 2024Observed: -2.02 ft at 5:20AM Mar 23, 2024Observed: -2.04 ft at 5:30AM Mar 23, 2024Observed: -2.04 ft at 5:40AM Mar 23, 2024Observed: -2.09 ft at 5:50AM Mar 23, 2024Observed: -2.11 ft at 6:00AM Mar 23, 2024Observed: -2.09 ft at 6:10AM Mar 23, 2024Observed: -2.06 ft at 6:20AM Mar 23, 2024Observed: -2.05 ft at 6:30AM Mar 23, 2024Observed: -2.03 ft at 6:40AM Mar 23, 2024Observed: -2.01 ft at 6:50AM Mar 23, 2024Observed: -2.03 ft at 7:00AM Mar 23, 2024Observed: -2.06 ft at 7:10AM Mar 23, 2024Observed: -2.03 ft at 7:20AM Mar 23, 2024Observed: -2.03 ft at 7:30AM Mar 23, 2024Observed: -2.04 ft at 7:40AM Mar 23, 2024Observed: -2.02 ft at 7:50AM Mar 23, 2024Observed: -2.02 ft at 8:00AM Mar 23, 2024Observed: -2.04 ft at 8:10AM Mar 23, 2024Observed: -2.06 ft at 8:20AM Mar 23, 2024Observed: -2.05 ft at 8:30AM Mar 23, 2024Observed: -2.04 ft at 8:40AM Mar 23, 2024Observed: -2.04 ft at 8:50AM Mar 23, 2024Observed: -2.04 ft at 9:00AM Mar 23, 2024Observed: -2.04 ft at 9:10AM Mar 23, 2024Observed: -2.05 ft at 9:20AM Mar 23, 2024Observed: -2.06 ft at 9:30AM Mar 23, 2024Observed: -2.05 ft at 9:40AM Mar 23, 2024Observed: -2.06 ft at 9:50AM Mar 23, 2024Observed: -2.07 ft at 10:00AM Mar 23, 2024Observed: -2.07 ft at 10:10AM Mar 23, 2024Observed: -2.07 ft at 10:20AM Mar 23, 2024Observed: -2.07 ft at 10:30AM Mar 23, 2024Observed: -2.07 ft at 10:40AM Mar 23, 2024Observed: -2.12 ft at 10:50AM Mar 23, 2024Observed: -2.13 ft at 11:00AM Mar 23, 2024Observed: -2.14 ft at 11:10AM Mar 23, 2024Observed: -2.14 ft at 11:20AM Mar 23, 2024Observed: -2.15 ft at 11:30AM Mar 23, 2024Observed: -2.12 ft at 11:40AM Mar 23, 2024Observed: -2.12 ft at 11:50AM Mar 23, 2024Observed: -2.13 ft at 12:00PM Mar 23, 2024Observed: -2.15 ft at 12:10PM Mar 23, 2024Observed: -2.17 ft at 12:20PM Mar 23, 2024Observed: -2.25 ft at 12:30PM Mar 23, 2024Observed: -2.23 ft at 12:40PM Mar 23, 2024Observed: -2.2 ft at 12:50PM Mar 23, 2024Observed: -2.2 ft at 1:00PM Mar 23, 2024Observed: -2.17 ft at 1:10PM Mar 23, 2024Observed: -2.15 ft at 1:20PM Mar 23, 2024Observed: -2.16 ft at 1:30PM Mar 23, 2024Observed: -2.19 ft at 1:40PM Mar 23, 2024Observed: -2.21 ft at 1:50PM Mar 23, 2024Observed: -2.18 ft at 2:00PM Mar 23, 2024Observed: -2.18 ft at 2:10PM Mar 23, 2024Observed: -2.22 ft at 2:20PM Mar 23, 2024Observed: -2.18 ft at 2:30PM Mar 23, 2024Observed: -2.19 ft at 2:40PM Mar 23, 2024Observed: -2.21 ft at 2:50PM Mar 23, 2024Observed: -2.18 ft at 3:00PM Mar 23, 2024Observed: -2.18 ft at 3:10PM Mar 23, 2024Observed: -2.11 ft at 3:20PM Mar 23, 2024Observed: -2.11 ft at 3:30PM Mar 23, 2024Observed: -2.21 ft at 3:40PM Mar 23, 2024Observed: -2.15 ft at 3:50PM Mar 23, 2024Observed: -2.1 ft at 4:00PM Mar 23, 2024Observed: -2.15 ft at 4:10PM Mar 23, 2024Observed: -2.07 ft at 4:20PM Mar 23, 2024Observed: -2.04 ft at 4:30PM Mar 23, 2024Observed: -2.05 ft at 4:40PM Mar 23, 2024Observed: -2.07 ft at 4:50PM Mar 23, 2024Observed: -2.09 ft at 5:00PM Mar 23, 2024Observed: -2.02 ft at 5:10PM Mar 23, 2024Observed: -2.02 ft at 5:20PM Mar 23, 2024Observed: -2.04 ft at 5:30PM Mar 23, 2024Observed: -1.97 ft at 5:40PM Mar 23, 2024Observed: -2 ft at 5:50PM Mar 23, 2024Observed: -2.03 ft at 6:00PM Mar 23, 2024Observed: -2.01 ft at 6:10PM Mar 23, 2024Observed: -1.97 ft at 6:20PM Mar 23, 2024Observed: -1.97 ft at 6:30PM Mar 23, 2024Observed: -1.98 ft at 6:40PM Mar 23, 2024Observed: -1.97 ft at 6:50PM Mar 23, 2024Observed: -1.96 ft at 7:00PM Mar 23, 2024Observed: -1.99 ft at 7:10PM Mar 23, 2024Observed: -1.98 ft at 7:20PM Mar 23, 2024Observed: -2.07 ft at 7:30PM Mar 23, 2024Observed: -2.06 ft at 7:40PM Mar 23, 2024Observed: -2.02 ft at 7:50PM Mar 23, 2024Observed: -2.03 ft at 8:00PM Mar 23, 2024Observed: -1.96 ft at 8:10PM Mar 23, 2024Observed: -1.91 ft at 8:20PM Mar 23, 2024Observed: -1.92 ft at 8:30PM Mar 23, 2024Observed: -1.95 ft at 8:40PM Mar 23, 2024Observed: -1.95 ft at 8:50PM Mar 23, 2024Observed: -1.95 ft at 9:00PM Mar 23, 2024Observed: -2.05 ft at 9:10PM Mar 23, 2024Observed: -2.05 ft at 9:20PM Mar 23, 2024Observed: -1.96 ft at 9:30PM Mar 23, 2024Observed: -1.96 ft at 9:40PM Mar 23, 2024Observed: -1.94 ft at 9:50PM Mar 23, 2024Observed: -1.85 ft at 10:00PM Mar 23, 2024Observed: -1.84 ft at 10:10PM Mar 23, 2024Observed: -1.87 ft at 10:20PM Mar 23, 2024Observed: -1.9 ft at 10:30PM Mar 23, 2024Observed: -1.85 ft at 10:40PM Mar 23, 2024Observed: -1.83 ft at 10:50PM Mar 23, 2024Observed: -1.87 ft at 11:00PM Mar 23, 2024Observed: -1.82 ft at 11:10PM Mar 23, 2024Observed: -1.81 ft at 11:20PM Mar 23, 2024Observed: -1.85 ft at 11:30PM Mar 23, 2024Observed: -1.84 ft at 11:40PM Mar 23, 2024Observed: -1.85 ft at 11:50PM Mar 23, 2024Observed: -1.89 ft at 12:00AM Mar 24, 2024Observed: -1.92 ft at 12:10AM Mar 24, 2024Observed: -1.93 ft at 12:20AM Mar 24, 2024Observed: -1.94 ft at 12:30AM Mar 24, 2024Observed: -1.94 ft at 12:40AM Mar 24, 2024Observed: -1.96 ft at 12:50AM Mar 24, 2024Observed: -1.96 ft at 1:00AM Mar 24, 2024Observed: -2 ft at 1:10AM Mar 24, 2024Observed: -2.02 ft at 1:20AM Mar 24, 2024Observed: -2.06 ft at 1:30AM Mar 24, 2024Observed: -2.09 ft at 1:40AM Mar 24, 2024Observed: -2.07 ft at 1:50AM Mar 24, 2024Observed: -2.06 ft at 2:00AM Mar 24, 2024Observed: -2.07 ft at 2:10AM Mar 24, 2024Observed: -2.04 ft at 2:20AM Mar 24, 2024Observed: -2.05 ft at 2:30AM Mar 24, 2024Observed: -2.08 ft at 2:40AM Mar 24, 2024Observed: -2.1 ft at 2:50AM Mar 24, 2024Observed: -2.09 ft at 3:00AM Mar 24, 2024Observed: -2.12 ft at 3:10AM Mar 24, 2024Observed: -2.16 ft at 3:20AM Mar 24, 2024Observed: -2.13 ft at 3:30AM Mar 24, 2024Observed: -2.1 ft at 3:40AM Mar 24, 2024Observed: -2.12 ft at 3:50AM Mar 24, 2024Observed: -2.09 ft at 4:00AM Mar 24, 2024Observed: -2.07 ft at 4:10AM Mar 24, 2024Observed: -2.08 ft at 4:20AM Mar 24, 2024Observed: -2.12 ft at 4:30AM Mar 24, 2024Observed: -2.17 ft at 4:40AM Mar 24, 2024Observed: -2.2 ft at 4:50AM Mar 24, 2024Observed: -2.18 ft at 5:00AM Mar 24, 2024Observed: -2.17 ft at 5:10AM Mar 24, 2024Observed: -2.15 ft at 5:20AM Mar 24, 2024Observed: -2.13 ft at 5:30AM Mar 24, 2024Observed: -2.15 ft at 5:40AM Mar 24, 2024Observed: -2.16 ft at 5:50AM Mar 24, 2024Observed: -2.18 ft at 6:00AM Mar 24, 2024Observed: -2.17 ft at 6:10AM Mar 24, 2024Observed: -2.16 ft at 6:20AM Mar 24, 2024Observed: -2.17 ft at 6:30AM Mar 24, 2024Observed: -2.18 ft at 6:40AM Mar 24, 2024Observed: -2.18 ft at 6:50AM Mar 24, 2024Observed: -2.2 ft at 7:00AM Mar 24, 2024Observed: -2.21 ft at 7:10AM Mar 24, 2024Observed: -2.19 ft at 7:20AM Mar 24, 2024Observed: -2.2 ft at 7:30AM Mar 24, 2024Observed: -2.21 ft at 7:40AM Mar 24, 2024Observed: -2.21 ft at 7:50AM Mar 24, 2024Observed: -2.2 ft at 8:00AM Mar 24, 2024Observed: -2.22 ft at 8:10AM Mar 24, 2024Observed: -2.22 ft at 8:20AM Mar 24, 2024Observed: -2.22 ft at 8:30AM Mar 24, 2024Observed: -2.24 ft at 8:40AM Mar 24, 2024Observed: -2.24 ft at 8:50AM Mar 24, 2024Observed: -2.25 ft at 9:00AM Mar 24, 2024Observed: -2.24 ft at 9:10AM Mar 24, 2024Observed: -2.23 ft at 9:20AM Mar 24, 2024Observed: -2.26 ft at 9:30AM Mar 24, 2024Observed: -2.26 ft at 9:40AM Mar 24, 2024Observed: -2.28 ft at 9:50AM Mar 24, 2024Observed: -2.29 ft at 10:00AM Mar 24, 2024Observed: -2.3 ft at 10:10AM Mar 24, 2024Observed: -2.3 ft at 10:20AM Mar 24, 2024Observed: -2.31 ft at 10:30AM Mar 24, 2024Observed: -2.31 ft at 10:40AM Mar 24, 2024Observed: -2.33 ft at 10:50AM Mar 24, 2024Observed: -2.32 ft at 11:00AM Mar 24, 2024Observed: -2.33 ft at 11:10AM Mar 24, 2024Observed: -2.4 ft at 11:20AM Mar 24, 2024Observed: -2.42 ft at 11:30AM Mar 24, 2024Observed: -2.4 ft at 11:40AM Mar 24, 2024Observed: -2.4 ft at 11:50AM Mar 24, 2024Observed: -2.41 ft at 12:00PM Mar 24, 2024Observed: -2.38 ft at 12:10PM Mar 24, 2024Observed: -2.4 ft at 12:20PM Mar 24, 2024Observed: -2.41 ft at 12:30PM Mar 24, 2024Observed: -2.44 ft at 12:40PM Mar 24, 2024Observed: -2.42 ft at 12:50PM Mar 24, 2024Observed: -2.42 ft at 1:00PM Mar 24, 2024Observed: -2.44 ft at 1:10PM Mar 24, 2024Observed: -2.45 ft at 1:20PM Mar 24, 2024Observed: -2.43 ft at 1:30PM Mar 24, 2024Observed: -2.44 ft at 1:40PM Mar 24, 2024Observed: -2.44 ft at 1:50PM Mar 24, 2024Observed: -2.33 ft at 2:00PM Mar 24, 2024Observed: -2.3 ft at 2:10PM Mar 24, 2024Observed: -2.39 ft at 2:20PM Mar 24, 2024Observed: -2.4 ft at 2:30PM Mar 24, 2024Observed: -2.36 ft at 2:40PM Mar 24, 2024Observed: -2.34 ft at 2:50PM Mar 24, 2024Observed: -2.34 ft at 3:00PM Mar 24, 2024Observed: -2.24 ft at 3:10PM Mar 24, 2024Observed: -2.24 ft at 3:20PM Mar 24, 2024Observed: -2.37 ft at 3:30PM Mar 24, 2024Observed: -2.41 ft at 3:40PM Mar 24, 2024Observed: -2.33 ft at 3:50PM Mar 24, 2024Observed: -2.29 ft at 4:00PM Mar 24, 2024Observed: -2.27 ft at 4:10PM Mar 24, 2024Observed: -2.2 ft at 4:20PM Mar 24, 2024Observed: -2.18 ft at 4:30PM Mar 24, 2024Observed: -2.24 ft at 4:40PM Mar 24, 2024Observed: -2.32 ft at 4:50PM Mar 24, 2024Observed: -2.24 ft at 5:00PM Mar 24, 2024Observed: -2.22 ft at 5:10PM Mar 24, 2024Observed: -2.25 ft at 5:20PM Mar 24, 2024Observed: -2.23 ft at 5:30PM Mar 24, 2024Observed: -2.19 ft at 5:40PM Mar 24, 2024Observed: -2.24 ft at 5:50PM Mar 24, 2024Observed: -2.23 ft at 6:00PM Mar 24, 2024Observed: -2.18 ft at 6:10PM Mar 24, 2024Observed: -2.16 ft at 6:20PM Mar 24, 2024Observed: -2.2 ft at 6:30PM Mar 24, 2024Observed: -2.2 ft at 6:40PM Mar 24, 2024Observed: -2.2 ft at 6:50PM Mar 24, 2024Observed: -2.17 ft at 7:00PM Mar 24, 2024Observed: -2.24 ft at 7:10PM Mar 24, 2024Observed: -2.19 ft at 7:20PM Mar 24, 2024Observed: -2.16 ft at 7:30PM Mar 24, 2024Observed: -2.2 ft at 7:40PM Mar 24, 2024Observed: -2.19 ft at 7:50PM Mar 24, 2024Observed: -2.14 ft at 8:00PM Mar 24, 2024Observed: -2.12 ft at 8:10PM Mar 24, 2024Observed: -2.14 ft at 8:20PM Mar 24, 2024Observed: -2.14 ft at 8:30PM Mar 24, 2024Observed: -2.1 ft at 8:40PM Mar 24, 2024Observed: -2.13 ft at 8:50PM Mar 24, 2024Observed: -2.16 ft at 9:00PM Mar 24, 2024Observed: -2.14 ft at 9:10PM Mar 24, 2024Observed: -2.12 ft at 9:20PM Mar 24, 2024Observed: -2.12 ft at 9:30PM Mar 24, 2024Observed: -2.11 ft at 9:40PM Mar 24, 2024Observed: -2.16 ft at 9:50PM Mar 24, 2024Observed: -2.21 ft at 10:00PM Mar 24, 2024Observed: -2.18 ft at 10:10PM Mar 24, 2024Observed: -2.16 ft at 10:20PM Mar 24, 2024Observed: -2.13 ft at 10:30PM Mar 24, 2024Observed: -2.09 ft at 10:40PM Mar 24, 2024Observed: -2.08 ft at 10:50PM Mar 24, 2024Observed: -2.09 ft at 11:00PM Mar 24, 2024Observed: -2.12 ft at 11:10PM Mar 24, 2024Observed: -2.09 ft at 11:20PM Mar 24, 2024Observed: -2.08 ft at 11:30PM Mar 24, 2024Observed: -2.06 ft at 11:40PM Mar 24, 2024Observed: -2.09 ft at 11:50PM Mar 24, 2024Observed: -2.18 ft at 12:00AM Mar 25, 2024Observed: -2.17 ft at 12:10AM Mar 25, 2024Observed: -2.14 ft at 12:20AM Mar 25, 2024Observed: -2.1 ft at 12:30AM Mar 25, 2024Observed: -2.03 ft at 12:40AM Mar 25, 2024Observed: -2 ft at 12:50AM Mar 25, 2024Observed: -2.01 ft at 1:00AM Mar 25, 2024Observed: -2.02 ft at 1:10AM Mar 25, 2024Observed: -2.04 ft at 1:20AM Mar 25, 2024Observed: -2.01 ft at 1:30AM Mar 25, 2024Observed: -1.99 ft at 1:40AM Mar 25, 2024Observed: -2.04 ft at 1:50AM Mar 25, 2024Observed: -2.05 ft at 2:00AM Mar 25, 2024Observed: -2.07 ft at 2:10AM Mar 25, 2024Observed: -2.1 ft at 2:20AM Mar 25, 2024Observed: -2.09 ft at 2:30AM Mar 25, 2024Observed: -2.04 ft at 2:40AM Mar 25, 2024Observed: -2.05 ft at 2:50AM Mar 25, 2024Observed: -2.07 ft at 3:00AM Mar 25, 2024Observed: -2.08 ft at 3:10AM Mar 25, 2024Observed: -2.08 ft at 3:20AM Mar 25, 2024Observed: -2.1 ft at 3:30AM Mar 25, 2024Observed: -2.1 ft at 3:40AM Mar 25, 2024Observed: -2.09 ft at 3:50AM Mar 25, 2024Observed: -2.09 ft at 4:00AM Mar 25, 2024Observed: -2.11 ft at 4:10AM Mar 25, 2024Observed: -2.12 ft at 4:20AM Mar 25, 2024Observed: -2.1 ft at 4:30AM Mar 25, 2024Observed: -2.09 ft at 4:40AM Mar 25, 2024Observed: -2.09 ft at 4:50AM Mar 25, 2024Observed: -2.08 ft at 5:00AM Mar 25, 2024Observed: -2.14 ft at 5:10AM Mar 25, 2024Observed: -2.16 ft at 5:20AM Mar 25, 2024Observed: -2.14 ft at 5:30AM Mar 25, 2024Observed: -2.12 ft at 5:40AM Mar 25, 2024Observed: -2.12 ft at 5:50AM Mar 25, 2024Observed: -2.07 ft at 6:00AM Mar 25, 2024Observed: -2.1 ft at 6:10AM Mar 25, 2024Observed: -2.12 ft at 6:20AM Mar 25, 2024Observed: -2.12 ft at 6:30AM Mar 25, 2024Observed: -2.11 ft at 6:40AM Mar 25, 2024Observed: -2.11 ft at 6:50AM Mar 25, 2024Observed: -2.11 ft at 7:00AM Mar 25, 2024Observed: -2.11 ft at 7:10AM Mar 25, 2024Observed: -2.09 ft at 7:20AM Mar 25, 2024Observed: -2.12 ft at 7:30AM Mar 25, 2024Observed: -2.13 ft at 7:40AM Mar 25, 2024Observed: -2.11 ft at 7:50AM Mar 25, 2024Observed: -2.12 ft at 8:00AM Mar 25, 2024Observed: -2.12 ft at 8:10AM Mar 25, 2024Observed: -2.12 ft at 8:20AM Mar 25, 2024Observed: -2.13 ft at 8:30AM Mar 25, 2024Observed: -2.13 ft at 8:40AM Mar 25, 2024Observed: -2.13 ft at 8:50AM Mar 25, 2024Observed: -2.13 ft at 9:00AM Mar 25, 2024Observed: -2.14 ft at 9:10AM Mar 25, 2024Observed: -2.14 ft at 9:20AM Mar 25, 2024Observed: -2.14 ft at 9:30AM Mar 25, 2024Observed: -2.14 ft at 9:40AM Mar 25, 2024Observed: -2.12 ft at 9:50AM Mar 25, 2024Observed: -2.13 ft at 10:00AM Mar 25, 2024Observed: -2.13 ft at 10:10AM Mar 25, 2024Observed: -2.13 ft at 10:20AM Mar 25, 2024Observed: -2.15 ft at 10:30AM Mar 25, 2024Observed: -2.15 ft at 10:40AM Mar 25, 2024Observed: -2.15 ft at 10:50AM Mar 25, 2024Observed: -2.14 ft at 11:00AM Mar 25, 2024Observed: -2.13 ft at 11:10AM Mar 25, 2024Observed: -2.18 ft at 11:20AM Mar 25, 2024Observed: -2.14 ft at 11:30AM Mar 25, 2024Observed: -2.15 ft at 11:40AM Mar 25, 2024Observed: -2.14 ft at 11:50AM Mar 25, 2024Observed: -2.12 ft at 12:00PM Mar 25, 2024Observed: -2.13 ft at 12:10PM Mar 25, 2024Observed: -2.13 ft at 12:20PM Mar 25, 2024Observed: -2.13 ft at 12:30PM Mar 25, 2024Observed: -2.13 ft at 12:40PM Mar 25, 2024Observed: -2.12 ft at 12:50PM Mar 25, 2024Observed: -2.12 ft at 1:00PM Mar 25, 2024Observed: -2.12 ft at 1:10PM Mar 25, 2024Observed: -2.13 ft at 1:20PM Mar 25, 2024Observed: -2.12 ft at 1:30PM Mar 25, 2024Observed: -2.12 ft at 1:40PM Mar 25, 2024Observed: -2.12 ft at 1:50PM Mar 25, 2024Observed: -2.11 ft at 2:00PM Mar 25, 2024Observed: -2.12 ft at 2:10PM Mar 25, 2024Observed: -2.11 ft at 2:20PM Mar 25, 2024Observed: -2.11 ft at 2:30PM Mar 25, 2024Observed: -2.12 ft at 2:40PM Mar 25, 2024Observed: -2.12 ft at 2:50PM Mar 25, 2024Observed: -2.13 ft at 3:00PM Mar 25, 2024Observed: -2.16 ft at 3:10PM Mar 25, 2024Observed: -2.23 ft at 3:20PM Mar 25, 2024Observed: -2.22 ft at 3:30PM Mar 25, 2024Observed: -2.2 ft at 3:40PM Mar 25, 2024Observed: -2.2 ft at 3:50PM Mar 25, 2024Observed: -2.2 ft at 4:00PM Mar 25, 2024Observed: -2.15 ft at 4:10PM Mar 25, 2024Observed: -2.17 ft at 4:20PM Mar 25, 2024Observed: -2.19 ft at 4:30PM Mar 25, 2024Observed: -2.19 ft at 4:40PM Mar 25, 2024Observed: -2.19 ft at 4:50PM Mar 25, 2024Observed: -2.18 ft at 5:00PM Mar 25, 2024Observed: -2.19 ft at 5:10PM Mar 25, 2024Observed: -2.19 ft at 5:20PM Mar 25, 2024Observed: -2.26 ft at 5:30PM Mar 25, 2024Observed: -2.29 ft at 5:40PM Mar 25, 2024Observed: -2.25 ft at 5:50PM Mar 25, 2024Observed: -2.21 ft at 6:00PM Mar 25, 2024Observed: -2.19 ft at 6:10PM Mar 25, 2024Observed: -2.15 ft at 6:20PM Mar 25, 2024Observed: -2.16 ft at 6:30PM Mar 25, 2024Observed: -2.19 ft at 6:40PM Mar 25, 2024Observed: -2.2 ft at 6:50PM Mar 25, 2024Observed: -2.2 ft at 7:00PM Mar 25, 2024Observed: -2.2 ft at 7:10PM Mar 25, 2024Observed: -2.19 ft at 7:20PM Mar 25, 2024Observed: -2.2 ft at 7:30PM Mar 25, 2024Observed: -2.19 ft at 7:40PM Mar 25, 2024Observed: -2.18 ft at 7:50PM Mar 25, 2024Observed: -2.19 ft at 8:00PM Mar 25, 2024Observed: -2.17 ft at 8:10PM Mar 25, 2024Observed: -2.16 ft at 8:20PM Mar 25, 2024Observed: -2.18 ft at 8:30PM Mar 25, 2024Observed: -2.2 ft at 8:40PM Mar 25, 2024Observed: -2.19 ft at 8:50PM Mar 25, 2024Observed: -2.19 ft at 9:00PM Mar 25, 2024Observed: -2.19 ft at 9:10PM Mar 25, 2024Observed: -2.19 ft at 9:20PM Mar 25, 2024Observed: -2.15 ft at 9:30PM Mar 25, 2024Observed: -2.12 ft at 9:40PM Mar 25, 2024Observed: -2.11 ft at 9:50PM Mar 25, 2024Observed: -2.08 ft at 10:00PM Mar 25, 2024Observed: -2.03 ft at 10:10PM Mar 25, 2024Observed: -2.05 ft at 10:20PM Mar 25, 2024Observed: -2.06 ft at 10:30PM Mar 25, 2024Observed: -2.05 ft at 10:40PM Mar 25, 2024Observed: -2.09 ft at 10:50PM Mar 25, 2024Observed: -2.19 ft at 11:00PM Mar 25, 2024Observed: -2.16 ft at 11:10PM Mar 25, 2024Observed: -2.15 ft at 11:20PM Mar 25, 2024Observed: -2.14 ft at 11:30PM Mar 25, 2024Observed: -2.1 ft at 11:40PM Mar 25, 2024Observed: -2.06 ft at 11:50PM Mar 25, 2024Observed: -2.05 ft at 12:00AM Mar 26, 2024Observed: -2.08 ft at 12:10AM Mar 26, 2024Observed: -2.08 ft at 12:20AM Mar 26, 2024Observed: -2.04 ft at 12:30AM Mar 26, 2024Observed: -2.05 ft at 12:40AM Mar 26, 2024Observed: -2.09 ft at 12:50AM Mar 26, 2024Observed: -2.08 ft at 1:00AM Mar 26, 2024Observed: -2.1 ft at 1:10AM Mar 26, 2024Observed: -2.13 ft at 1:20AM Mar 26, 2024Observed: -2.11 ft at 1:30AM Mar 26, 2024Observed: -2.1 ft at 1:40AM Mar 26, 2024Observed: -2.07 ft at 1:50AM Mar 26, 2024Observed: -2.08 ft at 2:00AM Mar 26, 2024Observed: -2.07 ft at 2:10AM Mar 26, 2024Observed: -2.05 ft at 2:20AM Mar 26, 2024Observed: -2.04 ft at 2:30AM Mar 26, 2024Observed: -2.06 ft at 2:40AM Mar 26, 2024Observed: -2.04 ft at 2:50AM Mar 26, 2024Observed: -2.03 ft at 3:00AM Mar 26, 2024Observed: -2.04 ft at 3:10AM Mar 26, 2024Observed: -2.06 ft at 3:20AM Mar 26, 2024Observed: -2.08 ft at 3:30AM Mar 26, 2024Observed: -2.05 ft at 3:40AM Mar 26, 2024Observed: -2.02 ft at 3:50AM Mar 26, 2024Observed: -2.02 ft at 4:00AM Mar 26, 2024Observed: -1.99 ft at 4:10AM Mar 26, 2024Observed: -1.96 ft at 4:20AM Mar 26, 2024Observed: -1.96 ft at 4:30AM Mar 26, 2024Observed: -1.98 ft at 4:40AM Mar 26, 2024Observed: -1.98 ft at 4:50AM Mar 26, 2024Observed: -1.97 ft at 5:00AM Mar 26, 2024Observed: -1.96 ft at 5:10AM Mar 26, 2024Observed: -1.97 ft at 5:20AM Mar 26, 2024Observed: -1.96 ft at 5:30AM Mar 26, 2024Observed: -1.97 ft at 5:40AM Mar 26, 2024Observed: -1.97 ft at 5:50AM Mar 26, 2024Observed: -1.96 ft at 6:00AM Mar 26, 2024Observed: -1.95 ft at 6:10AM Mar 26, 2024Observed: -1.96 ft at 6:20AM Mar 26, 2024Observed: -1.96 ft at 6:30AM Mar 26, 2024Observed: -1.95 ft at 6:40AM Mar 26, 2024Observed: -1.96 ft at 6:50AM Mar 26, 2024Observed: -1.96 ft at 7:00AM Mar 26, 2024Observed: -1.96 ft at 7:10AM Mar 26, 2024Observed: -2.02 ft at 7:20AM Mar 26, 2024Observed: -2.04 ft at 7:30AM Mar 26, 2024Observed: -2.03 ft at 7:40AM Mar 26, 2024Observed: -2.03 ft at 7:50AM Mar 26, 2024Observed: -2.02 ft at 8:00AM Mar 26, 2024Observed: -1.98 ft at 8:10AM Mar 26, 2024Observed: -1.99 ft at 8:20AM Mar 26, 2024Observed: -2 ft at 8:30AM Mar 26, 2024Observed: -2.02 ft at 8:40AM Mar 26, 2024Observed: -2.02 ft at 8:50AM Mar 26, 2024Observed: -2.02 ft at 9:00AM Mar 26, 2024Observed: -2.02 ft at 9:10AM Mar 26, 2024Observed: -2.02 ft at 9:20AM Mar 26, 2024Observed: -2.01 ft at 9:30AM Mar 26, 2024Observed: -2.02 ft at 9:40AM Mar 26, 2024Observed: -2.01 ft at 9:50AM Mar 26, 2024Observed: -2 ft at 10:00AM Mar 26, 2024Observed: -2 ft at 10:10AM Mar 26, 2024Observed: -2 ft at 10:20AM Mar 26, 2024Observed: -2 ft at 10:30AM Mar 26, 2024Observed: -2.02 ft at 10:40AM Mar 26, 2024Observed: -2.02 ft at 10:50AM Mar 26, 2024Observed: -2.02 ft at 11:00AM Mar 26, 2024Observed: -2.04 ft at 11:10AM Mar 26, 2024Observed: -2.04 ft at 11:20AM Mar 26, 2024Observed: -2.05 ft at 11:30AM Mar 26, 2024Observed: -2.02 ft at 11:40AM Mar 26, 2024Observed: -2 ft at 11:50AM Mar 26, 2024Observed: -1.98 ft at 12:00PM Mar 26, 2024Observed: -1.97 ft at 12:10PM Mar 26, 2024Observed: -2.03 ft at 12:20PM Mar 26, 2024Observed: -2.02 ft at 12:30PM Mar 26, 2024Observed: -2.01 ft at 12:40PM Mar 26, 2024Observed: -2.04 ft at 12:50PM Mar 26, 2024Observed: -2.02 ft at 1:00PM Mar 26, 2024Observed: -2.02 ft at 1:10PM Mar 26, 2024Observed: -2.03 ft at 1:20PM Mar 26, 2024Observed: -2.05 ft at 1:30PM Mar 26, 2024Observed: -2.04 ft at 1:40PM Mar 26, 2024Observed: -2.03 ft at 1:50PM Mar 26, 2024Observed: -2.05 ft at 2:00PM Mar 26, 2024Observed: -2.05 ft at 2:10PM Mar 26, 2024Observed: -2.06 ft at 2:20PM Mar 26, 2024Observed: -2.06 ft at 2:30PM Mar 26, 2024Observed: -2.08 ft at 2:40PM Mar 26, 2024Observed: -2.05 ft at 2:50PM Mar 26, 2024Observed: -2.03 ft at 3:00PM Mar 26, 2024Observed: -2.03 ft at 3:10PM Mar 26, 2024Observed: -2.02 ft at 3:20PM Mar 26, 2024Observed: -2.02 ft at 3:30PM Mar 26, 2024Observed: -2.04 ft at 3:40PM Mar 26, 2024Observed: -2.1 ft at 3:50PM Mar 26, 2024Observed: -2.1 ft at 4:00PM Mar 26, 2024Observed: -2.11 ft at 4:10PM Mar 26, 2024Observed: -2.08 ft at 4:20PM Mar 26, 2024Observed: -2.06 ft at 4:30PM Mar 26, 2024Observed: -2.02 ft at 4:40PM Mar 26, 2024Observed: -2.02 ft at 4:50PM Mar 26, 2024Observed: -2.03 ft at 5:00PM Mar 26, 2024Observed: -2.07 ft at 5:10PM Mar 26, 2024Observed: -2.13 ft at 5:20PM Mar 26, 2024Observed: -2.13 ft at 5:30PM Mar 26, 2024Observed: -2.12 ft at 5:40PM Mar 26, 2024Observed: -2.12 ft at 5:50PM Mar 26, 2024Observed: -2.1 ft at 6:00PM Mar 26, 2024Observed: -2.11 ft at 6:10PM Mar 26, 2024Observed: -2.11 ft at 6:20PM Mar 26, 2024Observed: -2.12 ft at 6:30PM Mar 26, 2024Observed: -2.13 ft at 6:40PM Mar 26, 2024Observed: -2.11 ft at 6:50PM Mar 26, 2024Observed: -2.1 ft at 7:00PM Mar 26, 2024Observed: -2.12 ft at 7:10PM Mar 26, 2024Observed: -2.11 ft at 7:20PM Mar 26, 2024Observed: -2.11 ft at 7:30PM Mar 26, 2024Observed: -2.12 ft at 7:40PM Mar 26, 2024Observed: -2.12 ft at 7:50PM Mar 26, 2024Observed: -2.11 ft at 8:00PM Mar 26, 2024Observed: -2.12 ft at 8:10PM Mar 26, 2024Observed: -2.19 ft at 8:20PM Mar 26, 2024Observed: -2.19 ft at 8:30PM Mar 26, 2024Observed: -2.18 ft at 8:40PM Mar 26, 2024Observed: -2.16 ft at 8:50PM Mar 26, 2024Observed: -2.16 ft at 9:00PM Mar 26, 2024Observed: -2.14 ft at 9:10PM Mar 26, 2024Observed: -2.13 ft at 9:20PM Mar 26, 2024Observed: -2.16 ft at 9:30PM Mar 26, 2024Observed: -2.18 ft at 9:40PM Mar 26, 2024Observed: -2.19 ft at 9:50PM Mar 26, 2024Observed: -2.18 ft at 10:00PM Mar 26, 2024Observed: -2.18 ft at 10:10PM Mar 26, 2024Observed: -2.18 ft at 10:20PM Mar 26, 2024Observed: -2.22 ft at 10:30PM Mar 26, 2024Observed: -2.23 ft at 10:40PM Mar 26, 2024Observed: -2.24 ft at 10:50PM Mar 26, 2024Observed: -2.24 ft at 11:00PM Mar 26, 2024Observed: -2.24 ft at 11:10PM Mar 26, 2024Observed: -2.22 ft at 11:20PM Mar 26, 2024Observed: -2.24 ft at 11:30PM Mar 26, 2024Observed: -2.24 ft at 11:40PM Mar 26, 2024Observed: -2.26 ft at 11:50PM Mar 26, 2024Observed: -2.25 ft at 12:00AM Mar 27, 2024Observed: -2.25 ft at 12:10AM Mar 27, 2024Observed: -2.26 ft at 12:20AM Mar 27, 2024Observed: -2.25 ft at 12:30AM Mar 27, 2024Observed: -2.25 ft at 12:40AM Mar 27, 2024Observed: -2.27 ft at 12:50AM Mar 27, 2024Observed: -2.27 ft at 1:00AM Mar 27, 2024Observed: -2.3 ft at 1:10AM Mar 27, 2024Observed: -2.33 ft at 1:20AM Mar 27, 2024Observed: -2.32 ft at 1:30AM Mar 27, 2024Observed: -2.3 ft at 1:40AM Mar 27, 2024Observed: -2.3 ft at 1:50AM Mar 27, 2024Observed: -2.28 ft at 2:00AM Mar 27, 2024Observed: -2.29 ft at 2:10AM Mar 27, 2024Observed: -2.28 ft at 2:20AM Mar 27, 2024Observed: -2.3 ft at 2:30AM Mar 27, 2024Observed: -2.33 ft at 2:40AM Mar 27, 2024Observed: -2.29 ft at 2:50AM Mar 27, 2024Observed: -2.31 ft at 3:00AM Mar 27, 2024Observed: -2.31 ft at 3:10AM Mar 27, 2024Observed: -2.3 ft at 3:20AM Mar 27, 2024Observed: -2.31 ft at 3:30AM Mar 27, 2024Observed: -2.33 ft at 3:40AM Mar 27, 2024Observed: -2.32 ft at 3:50AM Mar 27, 2024Observed: -2.33 ft at 4:00AM Mar 27, 2024Observed: -2.33 ft at 4:10AM Mar 27, 2024Observed: -2.34 ft at 4:20AM Mar 27, 2024Observed: -2.34 ft at 4:30AM Mar 27, 2024Observed: -2.34 ft at 4:40AM Mar 27, 2024Observed: -2.34 ft at 4:50AM Mar 27, 2024Observed: -2.4 ft at 5:00AM Mar 27, 2024Observed: -2.4 ft at 5:10AM Mar 27, 2024Observed: -2.4 ft at 5:20AM Mar 27, 2024Observed: -2.4 ft at 5:30AM Mar 27, 2024Observed: -2.4 ft at 5:40AM Mar 27, 2024Observed: -2.38 ft at 5:50AM Mar 27, 2024Observed: -2.39 ft at 6:00AM Mar 27, 2024Observed: -2.4 ft at 6:10AM Mar 27, 2024Observed: -2.42 ft at 6:20AM Mar 27, 2024Observed: -2.41 ft at 6:30AM Mar 27, 2024Observed: -2.41 ft at 6:40AM Mar 27, 2024Observed: -2.41 ft at 6:50AM Mar 27, 2024Observed: -2.42 ft at 7:00AM Mar 27, 2024Observed: -2.42 ft at 7:10AM Mar 27, 2024Observed: -2.43 ft at 7:20AM Mar 27, 2024Observed: -2.44 ft at 7:30AM Mar 27, 2024Observed: -2.43 ft at 7:40AM Mar 27, 2024Observed: -2.43 ft at 7:50AM Mar 27, 2024Observed: -2.44 ft at 8:00AM Mar 27, 2024Observed: -2.44 ft at 8:10AM Mar 27, 2024Observed: -2.44 ft at 8:20AM Mar 27, 2024Observed: -2.47 ft at 8:30AM Mar 27, 2024Observed: -2.45 ft at 8:40AM Mar 27, 2024Observed: -2.45 ft at 8:50AM Mar 27, 2024Observed: -2.46 ft at 9:00AM Mar 27, 2024Observed: -2.47 ft at 9:10AM Mar 27, 2024Observed: -2.48 ft at 9:20AM Mar 27, 2024Observed: -2.47 ft at 9:30AM Mar 27, 2024Observed: -2.46 ft at 9:40AM Mar 27, 2024Observed: -2.47 ft at 9:50AM Mar 27, 2024Observed: -2.47 ft at 10:00AM Mar 27, 2024Observed: -2.47 ft at 10:10AM Mar 27, 2024Observed: -2.45 ft at 10:20AM Mar 27, 2024Observed: -2.43 ft at 10:30AM Mar 27, 2024Observed: -2.45 ft at 10:40AM Mar 27, 2024Observed: -2.5 ft at 10:50AM Mar 27, 2024Observed: -2.46 ft at 11:00AM Mar 27, 2024Observed: -2.44 ft at 11:10AM Mar 27, 2024Observed: -2.44 ft at 11:20AM Mar 27, 2024Observed: -2.39 ft at 11:30AM Mar 27, 2024Observed: -2.37 ft at 11:40AM Mar 27, 2024Observed: -2.38 ft at 11:50AM Mar 27, 2024Observed: -2.4 ft at 12:00PM Mar 27, 2024Observed: -2.41 ft at 12:10PM Mar 27, 2024Observed: -2.38 ft at 12:20PM Mar 27, 2024Observed: -2.36 ft at 12:30PM Mar 27, 2024Observed: -2.37 ft at 12:40PM Mar 27, 2024Observed: -2.4 ft at 12:50PM Mar 27, 2024Observed: -2.42 ft at 1:00PM Mar 27, 2024Observed: -2.42 ft at 1:10PM Mar 27, 2024Observed: -2.39 ft at 1:20PM Mar 27, 2024Observed: -2.36 ft at 1:30PM Mar 27, 2024Observed: -2.32 ft at 1:40PM Mar 27, 2024Observed: -2.33 ft at 1:50PM Mar 27, 2024Observed: -2.31 ft at 2:00PM Mar 27, 2024Observed: -2.3 ft at 2:10PM Mar 27, 2024Observed: -2.26 ft at 2:20PM Mar 27, 2024Observed: -2.25 ft at 2:30PM Mar 27, 2024Observed: -2.24 ft at 2:40PM Mar 27, 2024Observed: -2.27 ft at 2:50PM Mar 27, 2024Observed: -2.34 ft at 3:00PM Mar 27, 2024Observed: -2.33 ft at 3:10PM Mar 27, 2024Observed: -2.26 ft at 3:20PM Mar 27, 2024Observed: -2.24 ft at 3:30PM Mar 27, 2024Observed: -2.17 ft at 3:40PM Mar 27, 2024Observed: -2.14 ft at 3:50PM Mar 27, 2024Observed: -2.16 ft at 4:00PM Mar 27, 2024Observed: -2.17 ft at 4:10PM Mar 27, 2024Observed: -2.18 ft at 4:20PM Mar 27, 2024Observed: -2.12 ft at 4:30PM Mar 27, 2024Observed: -2.1 ft at 4:40PM Mar 27, 2024Observed: -2.12 ft at 4:50PM Mar 27, 2024Observed: -2.1 ft at 5:00PM Mar 27, 2024Observed: -2.07 ft at 5:10PM Mar 27, 2024Observed: -2.09 ft at 5:20PM Mar 27, 2024Observed: -2.07 ft at 5:30PM Mar 27, 2024Observed: -2.03 ft at 5:40PM Mar 27, 2024Observed: -2.03 ft at 5:50PM Mar 27, 2024Observed: -2.04 ft at 6:00PM Mar 27, 2024Observed: -2.03 ft at 6:10PM Mar 27, 2024Observed: -2.02 ft at 6:20PM Mar 27, 2024Observed: -2.02 ft at 6:30PM Mar 27, 2024Observed: -2.01 ft at 6:40PM Mar 27, 2024Observed: -2.04 ft at 6:50PM Mar 27, 2024Observed: -2.06 ft at 7:00PM Mar 27, 2024Observed: -2.08 ft at 7:10PM Mar 27, 2024Observed: -2.07 ft at 7:20PM Mar 27, 2024Observed: -2.07 ft at 7:30PM Mar 27, 2024Observed: -2.05 ft at 7:40PM Mar 27, 2024Observed: -2.05 ft at 7:50PM Mar 27, 2024Observed: -2.04 ft at 8:00PM Mar 27, 2024Observed: -2.07 ft at 8:10PM Mar 27, 2024Observed: -2.08 ft at 8:20PM Mar 27, 2024Observed: -2.07 ft at 8:30PM Mar 27, 2024Observed: -2.07 ft at 8:40PM Mar 27, 2024Observed: -2.08 ft at 8:50PM Mar 27, 2024Observed: -2.06 ft at 9:00PM Mar 27, 2024Observed: -2.06 ft at 9:10PM Mar 27, 2024Observed: -2.06 ft at 9:20PM Mar 27, 2024Observed: -2.04 ft at 9:30PM Mar 27, 2024Observed: -2.05 ft at 9:40PM Mar 27, 2024Observed: -2.13 ft at 9:50PM Mar 27, 2024Observed: -2.09 ft at 10:00PM Mar 27, 2024Observed: -2.09 ft at 10:10PM Mar 27, 2024Observed: -2.08 ft at 10:20PM Mar 27, 2024Observed: -2.05 ft at 10:30PM Mar 27, 2024Observed: -2 ft at 10:40PM Mar 27, 2024Observed: -2.09 ft at 10:50PM Mar 27, 2024Observed: -2.11 ft at 11:00PM Mar 27, 2024Observed: -2.11 ft at 11:10PM Mar 27, 2024Observed: -2.06 ft at 11:20PM Mar 27, 2024Observed: -2.04 ft at 11:30PM Mar 27, 2024Observed: -2.01 ft at 11:40PM Mar 27, 2024Observed: -2 ft at 11:50PM Mar 27, 2024Observed: -2.01 ft at 12:00AM Mar 28, 2024Observed: -2.03 ft at 12:10AM Mar 28, 2024Observed: -2.02 ft at 12:20AM Mar 28, 2024Observed: -1.98 ft at 12:30AM Mar 28, 2024Observed: -1.99 ft at 12:40AM Mar 28, 2024Observed: -1.99 ft at 12:50AM Mar 28, 2024Observed: -1.97 ft at 1:00AM Mar 28, 2024Observed: -1.98 ft at 1:10AM Mar 28, 2024Observed: -1.98 ft at 1:20AM Mar 28, 2024Observed: -1.95 ft at 1:30AM Mar 28, 2024Observed: -1.96 ft at 1:40AM Mar 28, 2024Observed: -1.96 ft at 1:50AM Mar 28, 2024Observed: -1.96 ft at 2:00AM Mar 28, 2024Observed: -1.95 ft at 2:10AM Mar 28, 2024Observed: -1.94 ft at 2:20AM Mar 28, 2024Observed: -1.94 ft at 2:30AM Mar 28, 2024Observed: -1.93 ft at 2:40AM Mar 28, 2024Observed: -2 ft at 2:50AM Mar 28, 2024Observed: -2.04 ft at 3:00AM Mar 28, 2024Observed: -2.02 ft at 3:10AM Mar 28, 2024Observed: -1.99 ft at 3:20AM Mar 28, 2024Observed: -1.97 ft at 3:30AM Mar 28, 2024Observed: -1.92 ft at 3:40AM Mar 28, 2024Observed: -1.92 ft at 3:50AM Mar 28, 2024USGS--Water Resources of the United StatesCSWI2(plotting HGIRP) Graph Created (4:41AM Mar 28, 2024)ObservedLatest observed value: -1.92 ft at 3:50 AM CDT 28-Mar-2024. Flood Stage is 4 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Graphical forecasts are not available for the Chicago Sanitary and Ship Canal at Chicago (Western Ave). During times of high water, forecast crest information can be found in the text products.
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Upstream Gauge - at Chicago (Grand Ave) Upstream Gauge Downstream Gauge Downstream Gauge - at Stickney
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 4
Action Stage: 2
Low Stage (in feet): -4

Historic Crests
(1) 5.26 ft on 05/17/2020
(2) 4.10 ft on 06/30/1977
(3) 3.62 ft on 10/14/2017
(4) 3.07 ft on 06/15/2015
(5) 1.65 ft on 05/01/2019

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.26 ft on 05/17/2020
(2) 1.65 ft on 05/01/2019
(3) 3.62 ft on 10/14/2017
(4) 3.07 ft on 06/15/2015
(5) 4.10 ft on 06/30/1977

(P): Preliminary values subject to further review.

Low Water Records
(1) -3.90 ft on 06/25/2015

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

Zoom Level:15
KML Image
Gauge LocationGauge Map Marker
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
7 Structures are threatened near the canal in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago. Structures are threatened near the South Branch Chicago River along Iron Street in the Bridgeport and McKinley Park areas of Chicago.
6 Structures are threatened near Ping Tom Park and in the Armour Square, Near South Side, and Lower West Side areas of Chicago.
4 The canal overflows low-lying banks in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago.
2 Low-lying sections of Ping Tom Park are inundated.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
-4 Low water levels begin to impact shipping interests along the river.
About This Location Collapse

Latitude: 41.837190° N, Longitude: 87.685420° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 4 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 579.20 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 579.48 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available Chicago City Datum

Current/Historical Observations:

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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: 2-Nov-2020 7:29 PM
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