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Hydrograph River at a Glance Download
Illinois River at Starved Rock Lock (tailwater) Tailwater (ft)Flow (kcfs)Observed: 441.61 ft at 10:00AM Jan 10, 2021Observed: 441.58 ft at 10:30AM Jan 10, 2021Observed: 441.57 ft at 11:00AM Jan 10, 2021Observed: 441.58 ft at 11:30AM Jan 10, 2021Observed: 441.55 ft at 12:00PM Jan 10, 2021Observed: 441.54 ft at 12:30PM Jan 10, 2021Observed: 441.7 ft at 1:00PM Jan 10, 2021Observed: 441.61 ft at 1:30PM Jan 10, 2021Observed: 441.58 ft at 2:00PM Jan 10, 2021Observed: 441.54 ft at 2:30PM Jan 10, 2021Observed: 441.69 ft at 3:00PM Jan 10, 2021Observed: 441.6 ft at 3:30PM Jan 10, 2021Observed: 441.62 ft at 4:00PM Jan 10, 2021Observed: 441.68 ft at 4:30PM Jan 10, 2021Observed: 441.57 ft at 5:00PM Jan 10, 2021Observed: 441.62 ft at 5:30PM Jan 10, 2021Observed: 441.56 ft at 6:00PM Jan 10, 2021Observed: 441.58 ft at 6:30PM Jan 10, 2021Observed: 441.56 ft at 7:00PM Jan 10, 2021Observed: 441.58 ft at 7:30PM Jan 10, 2021Observed: 441.58 ft at 8:00PM Jan 10, 2021Observed: 441.56 ft at 8:30PM Jan 10, 2021Observed: 441.57 ft at 9:00PM Jan 10, 2021Observed: 441.55 ft at 9:30PM Jan 10, 2021Observed: 441.57 ft at 10:00PM Jan 10, 2021Observed: 441.59 ft at 10:30PM Jan 10, 2021Observed: 441.58 ft at 11:00PM Jan 10, 2021Observed: 441.57 ft at 11:30PM Jan 10, 2021Observed: 441.55 ft at 12:00AM Jan 11, 2021Observed: 441.55 ft at 12:30AM Jan 11, 2021Observed: 441.69 ft at 1:00AM Jan 11, 2021Observed: 441.53 ft at 1:30AM Jan 11, 2021Observed: 441.58 ft at 2:00AM Jan 11, 2021Observed: 441.55 ft at 2:30AM Jan 11, 2021Observed: 441.57 ft at 3:00AM Jan 11, 2021Observed: 441.57 ft at 3:30AM Jan 11, 2021Observed: 441.57 ft at 4:00AM Jan 11, 2021Observed: 441.66 ft at 4:30AM Jan 11, 2021Observed: 441.61 ft at 5:00AM Jan 11, 2021Observed: 441.61 ft at 5:30AM Jan 11, 2021Observed: 441.63 ft at 6:00AM Jan 11, 2021Observed: 441.66 ft at 6:30AM Jan 11, 2021Observed: 441.63 ft at 7:00AM Jan 11, 2021Observed: 441.65 ft at 7:30AM Jan 11, 2021Observed: 441.65 ft at 8:00AM Jan 11, 2021Observed: 441.67 ft at 8:30AM Jan 11, 2021Observed: 441.63 ft at 9:00AM Jan 11, 2021Observed: 441.67 ft at 9:30AM Jan 11, 2021Observed: 441.65 ft at 10:00AM Jan 11, 2021Observed: 441.72 ft at 10:30AM Jan 11, 2021Observed: 441.7 ft at 11:00AM Jan 11, 2021Observed: 441.73 ft at 11:30AM Jan 11, 2021Observed: 441.74 ft at 12:00PM Jan 11, 2021Observed: 441.74 ft at 12:30PM Jan 11, 2021Observed: 441.74 ft at 1:00PM Jan 11, 2021Observed: 441.72 ft at 1:30PM Jan 11, 2021Observed: 441.74 ft at 2:00PM Jan 11, 2021Observed: 441.71 ft at 2:30PM Jan 11, 2021Observed: 441.88 ft at 3:00PM Jan 11, 2021Observed: 441.78 ft at 3:30PM Jan 11, 2021Observed: 441.84 ft at 4:00PM Jan 11, 2021Observed: 441.88 ft at 4:30PM Jan 11, 2021Observed: 441.84 ft at 5:00PM Jan 11, 2021Observed: 441.78 ft at 5:30PM Jan 11, 2021Observed: 441.78 ft at 6:00PM Jan 11, 2021Observed: 441.69 ft at 6:30PM Jan 11, 2021Observed: 441.76 ft at 7:00PM Jan 11, 2021Observed: 441.75 ft at 7:30PM Jan 11, 2021Observed: 441.81 ft at 8:00PM Jan 11, 2021Observed: 441.81 ft at 8:30PM Jan 11, 2021Observed: 441.9 ft at 9:00PM Jan 11, 2021Observed: 441.88 ft at 9:30PM Jan 11, 2021Observed: 441.82 ft at 10:00PM Jan 11, 2021Observed: 441.74 ft at 10:30PM Jan 11, 2021Observed: 441.82 ft at 11:00PM Jan 11, 2021Observed: 441.87 ft at 11:30PM Jan 11, 2021Observed: 441.86 ft at 12:00AM Jan 12, 2021Observed: 442.12 ft at 12:30AM Jan 12, 2021Observed: 441.87 ft at 1:00AM Jan 12, 2021Observed: 441.8 ft at 1:30AM Jan 12, 2021Observed: 441.8 ft at 2:00AM Jan 12, 2021Observed: 441.77 ft at 2:30AM Jan 12, 2021Observed: 441.86 ft at 3:00AM Jan 12, 2021Observed: 441.76 ft at 3:30AM Jan 12, 2021Observed: 441.83 ft at 4:00AM Jan 12, 2021Observed: 441.88 ft at 4:30AM Jan 12, 2021Observed: 441.83 ft at 5:00AM Jan 12, 2021Observed: 441.79 ft at 5:30AM Jan 12, 2021Observed: 442 ft at 6:00AM Jan 12, 2021Observed: 441.82 ft at 6:30AM Jan 12, 2021Observed: 441.8 ft at 7:00AM Jan 12, 2021Observed: 441.81 ft at 7:30AM Jan 12, 2021Observed: 441.79 ft at 8:00AM Jan 12, 2021Observed: 441.86 ft at 8:30AM Jan 12, 2021Observed: 441.67 ft at 9:00AM Jan 12, 2021Observed: 441.77 ft at 9:30AM Jan 12, 2021Observed: 441.69 ft at 10:00AM Jan 12, 2021Observed: 441.68 ft at 10:30AM Jan 12, 2021Observed: 441.73 ft at 11:00AM Jan 12, 2021Observed: 441.47 ft at 11:30AM Jan 12, 2021Observed: 441.57 ft at 12:00PM Jan 12, 2021Observed: 441.73 ft at 12:30PM Jan 12, 2021Observed: 441.54 ft at 1:00PM Jan 12, 2021Observed: 441.51 ft at 1:30PM Jan 12, 2021Observed: 441.48 ft at 2:00PM Jan 12, 2021Observed: 441.48 ft at 2:30PM Jan 12, 2021Observed: 441.48 ft at 3:00PM Jan 12, 2021Observed: 441.4 ft at 3:30PM Jan 12, 2021Observed: 441.45 ft at 4:00PM Jan 12, 2021Observed: 441.46 ft at 4:30PM Jan 12, 2021Observed: 441.49 ft at 5:00PM Jan 12, 2021Observed: 441.45 ft at 5:30PM Jan 12, 2021Observed: 441.48 ft at 6:00PM Jan 12, 2021Observed: 441.45 ft at 6:30PM Jan 12, 2021Observed: 441.34 ft at 7:00PM Jan 12, 2021Observed: 441.37 ft at 7:30PM Jan 12, 2021Observed: 441.3 ft at 8:00PM Jan 12, 2021Observed: 441.54 ft at 8:30PM Jan 12, 2021Observed: 441.43 ft at 9:00PM Jan 12, 2021Observed: 441.44 ft at 9:30PM Jan 12, 2021Observed: 441.5 ft at 10:00PM Jan 12, 2021Observed: 441.41 ft at 10:30PM Jan 12, 2021Observed: 441.51 ft at 11:00PM Jan 12, 2021Observed: 441.5 ft at 11:30PM Jan 12, 2021Observed: 441.49 ft at 12:00AM Jan 13, 2021Observed: 441.49 ft at 12:30AM Jan 13, 2021Observed: 441.49 ft at 1:00AM Jan 13, 2021Observed: 441.5 ft at 1:30AM Jan 13, 2021Observed: 441.5 ft at 2:00AM Jan 13, 2021Observed: 441.5 ft at 2:30AM Jan 13, 2021Observed: 441.49 ft at 3:00AM Jan 13, 2021Observed: 441.5 ft at 3:30AM Jan 13, 2021Observed: 441.54 ft at 4:00AM Jan 13, 2021Observed: 441.47 ft at 4:30AM Jan 13, 2021Observed: 441.49 ft at 5:00AM Jan 13, 2021Observed: 441.52 ft at 5:30AM Jan 13, 2021Observed: 441.51 ft at 6:00AM Jan 13, 2021Observed: 441.48 ft at 6:30AM Jan 13, 2021Observed: 441.53 ft at 7:00AM Jan 13, 2021Observed: 441.74 ft at 7:30AM Jan 13, 2021Observed: 441.61 ft at 8:00AM Jan 13, 2021Observed: 441.46 ft at 8:30AM Jan 13, 2021Observed: 441.54 ft at 9:00AM Jan 13, 2021Observed: 441.53 ft at 9:30AM Jan 13, 2021Observed: 441.55 ft at 10:00AM Jan 13, 2021Observed: 441.49 ft at 10:30AM Jan 13, 2021Observed: 441.49 ft at 11:00AM Jan 13, 2021Observed: 441.49 ft at 11:30AM Jan 13, 2021Observed: 441.5 ft at 12:00PM Jan 13, 2021Observed: 441.5 ft at 12:30PM Jan 13, 2021Observed: 441.48 ft at 1:00PM Jan 13, 2021Observed: 441.46 ft at 1:30PM Jan 13, 2021Observed: 441.49 ft at 2:00PM Jan 13, 2021Observed: 441.47 ft at 2:30PM Jan 13, 2021Observed: 441.45 ft at 3:00PM Jan 13, 2021Observed: 441.5 ft at 3:30PM Jan 13, 2021Observed: 441.48 ft at 4:00PM Jan 13, 2021Observed: 441.48 ft at 4:30PM Jan 13, 2021Observed: 441.49 ft at 5:00PM Jan 13, 2021Observed: 441.49 ft at 5:30PM Jan 13, 2021Observed: 441.5 ft at 6:00PM Jan 13, 2021Observed: 441.49 ft at 6:30PM Jan 13, 2021Observed: 441.53 ft at 7:00PM Jan 13, 2021Observed: 441.46 ft at 7:30PM Jan 13, 2021Observed: 441.45 ft at 8:00PM Jan 13, 2021Observed: 441.57 ft at 8:30PM Jan 13, 2021Observed: 441.59 ft at 9:00PM Jan 13, 2021Observed: 441.6 ft at 9:30PM Jan 13, 2021Observed: 441.61 ft at 10:00PM Jan 13, 2021Observed: 441.56 ft at 10:30PM Jan 13, 2021Observed: 441.59 ft at 11:00PM Jan 13, 2021Observed: 441.57 ft at 11:30PM Jan 13, 2021Observed: 441.54 ft at 12:00AM Jan 14, 2021Observed: 441.54 ft at 12:30AM Jan 14, 2021Observed: 441.53 ft at 1:00AM Jan 14, 2021Observed: 441.56 ft at 1:30AM Jan 14, 2021Observed: 441.55 ft at 2:00AM Jan 14, 2021Observed: 441.54 ft at 2:30AM Jan 14, 2021Observed: 441.55 ft at 3:00AM Jan 14, 2021Observed: 441.57 ft at 3:30AM Jan 14, 2021Observed: 441.61 ft at 4:00AM Jan 14, 2021Observed: 441.53 ft at 4:30AM Jan 14, 2021Observed: 441.56 ft at 5:00AM Jan 14, 2021Observed: 441.55 ft at 5:30AM Jan 14, 2021Observed: 441.56 ft at 6:00AM Jan 14, 2021Observed: 441.6 ft at 6:30AM Jan 14, 2021Observed: 441.66 ft at 7:00AM Jan 14, 2021Observed: 441.94 ft at 7:30AM Jan 14, 2021Observed: 441.58 ft at 8:00AM Jan 14, 2021Observed: 441.63 ft at 8:30AM Jan 14, 2021Observed: 441.61 ft at 9:00AM Jan 14, 2021Observed: 441.67 ft at 9:30AM Jan 14, 2021Observed: 441.54 ft at 10:00AM Jan 14, 2021Observed: 441.91 ft at 10:30AM Jan 14, 2021Observed: 441.6 ft at 11:00AM Jan 14, 2021Observed: 441.55 ft at 11:30AM Jan 14, 2021Observed: 441.51 ft at 12:00PM Jan 14, 2021Observed: 441.56 ft at 12:30PM Jan 14, 2021Observed: 441.57 ft at 1:00PM Jan 14, 2021Observed: 441.51 ft at 1:30PM Jan 14, 2021Observed: 441.81 ft at 2:00PM Jan 14, 2021Observed: 441.61 ft at 2:30PM Jan 14, 2021Observed: 441.63 ft at 3:00PM Jan 14, 2021Observed: 441.55 ft at 3:30PM Jan 14, 2021Observed: 441.46 ft at 4:00PM Jan 14, 2021Observed: 441.56 ft at 4:30PM Jan 14, 2021Observed: 441.48 ft at 5:00PM Jan 14, 2021Observed: 441.49 ft at 5:30PM Jan 14, 2021Observed: 441.5 ft at 6:00PM Jan 14, 2021Observed: 441.54 ft at 6:30PM Jan 14, 2021Observed: 441.53 ft at 7:00PM Jan 14, 2021Observed: 441.49 ft at 7:30PM Jan 14, 2021Observed: 441.45 ft at 8:00PM Jan 14, 2021Observed: 441.52 ft at 8:30PM Jan 14, 2021Observed: 441.55 ft at 9:00PM Jan 14, 2021Observed: 441.53 ft at 9:30PM Jan 14, 2021Observed: 441.59 ft at 10:00PM Jan 14, 2021Observed: 441.46 ft at 10:30PM Jan 14, 2021Observed: 441.57 ft at 11:00PM Jan 14, 2021Observed: 441.57 ft at 11:30PM Jan 14, 2021Observed: 441.41 ft at 12:00AM Jan 15, 2021Observed: 441.65 ft at 12:30AM Jan 15, 2021Observed: 441.45 ft at 1:00AM Jan 15, 2021Observed: 441.51 ft at 1:30AM Jan 15, 2021Observed: 441.58 ft at 2:00AM Jan 15, 2021Observed: 441.6 ft at 2:30AM Jan 15, 2021Observed: 441.69 ft at 3:00AM Jan 15, 2021Observed: 441.68 ft at 3:30AM Jan 15, 2021Observed: 441.78 ft at 4:00AM Jan 15, 2021Observed: 441.72 ft at 4:30AM Jan 15, 2021Observed: 441.81 ft at 5:00AM Jan 15, 2021Observed: 441.81 ft at 5:30AM Jan 15, 2021Observed: 441.79 ft at 6:00AM Jan 15, 2021Observed: 441.87 ft at 6:30AM Jan 15, 2021Observed: 441.91 ft at 7:00AM Jan 15, 2021Observed: 442.01 ft at 7:30AM Jan 15, 2021Observed: 442.05 ft at 8:00AM Jan 15, 2021Observed: 442.12 ft at 8:30AM Jan 15, 2021Observed: 442.11 ft at 9:00AM Jan 15, 2021Observed: 442.22 ft at 9:30AM Jan 15, 2021Observed: 442.26 ft at 10:00AM Jan 15, 2021Observed: 442.14 ft at 10:30AM Jan 15, 2021Observed: 442.19 ft at 11:00AM Jan 15, 2021Observed: 442.2 ft at 11:30AM Jan 15, 2021Observed: 442.21 ft at 12:00PM Jan 15, 2021Observed: 442.23 ft at 12:30PM Jan 15, 2021Observed: 442.23 ft at 1:00PM Jan 15, 2021Observed: 442.22 ft at 1:30PM Jan 15, 2021Observed: 442.23 ft at 2:00PM Jan 15, 2021Observed: 442.24 ft at 2:30PM Jan 15, 2021Observed: 442.25 ft at 3:00PM Jan 15, 2021Observed: 442.23 ft at 3:30PM Jan 15, 2021Observed: 442.24 ft at 4:00PM Jan 15, 2021Observed: 442.25 ft at 4:30PM Jan 15, 2021Observed: 442.24 ft at 5:00PM Jan 15, 2021Observed: 442.21 ft at 5:30PM Jan 15, 2021Observed: 442.15 ft at 6:00PM Jan 15, 2021Observed: 442.09 ft at 6:30PM Jan 15, 2021Observed: 442.04 ft at 7:00PM Jan 15, 2021Observed: 441.99 ft at 7:30PM Jan 15, 2021Observed: 442 ft at 8:00PM Jan 15, 2021Observed: 441.94 ft at 8:30PM Jan 15, 2021Observed: 441.85 ft at 9:00PM Jan 15, 2021Observed: 441.86 ft at 9:30PM Jan 15, 2021Observed: 441.83 ft at 10:00PM Jan 15, 2021Observed: 441.8 ft at 10:30PM Jan 15, 2021Observed: 441.78 ft at 11:00PM Jan 15, 2021Observed: 441.76 ft at 11:30PM Jan 15, 2021Observed: 441.84 ft at 12:00AM Jan 16, 2021Observed: 441.76 ft at 12:30AM Jan 16, 2021Observed: 441.79 ft at 1:00AM Jan 16, 2021Observed: 441.89 ft at 1:30AM Jan 16, 2021Observed: 441.66 ft at 2:00AM Jan 16, 2021Observed: 441.68 ft at 2:30AM Jan 16, 2021Observed: 441.69 ft at 3:00AM Jan 16, 2021Observed: 441.66 ft at 3:30AM Jan 16, 2021Observed: 441.96 ft at 4:00AM Jan 16, 2021Observed: 441.67 ft at 4:30AM Jan 16, 2021Observed: 441.69 ft at 5:00AM Jan 16, 2021Observed: 441.76 ft at 5:30AM Jan 16, 2021Observed: 441.73 ft at 6:00AM Jan 16, 2021Observed: 441.72 ft at 6:30AM Jan 16, 2021Observed: 441.77 ft at 7:00AM Jan 16, 2021Observed: 441.73 ft at 7:30AM Jan 16, 2021Observed: 441.94 ft at 8:00AM Jan 16, 2021Observed: 441.72 ft at 8:30AM Jan 16, 2021Observed: 441.9 ft at 9:00AM Jan 16, 2021Observed: 441.84 ft at 9:30AM Jan 16, 2021Observed: 441.79 ft at 10:00AM Jan 16, 2021Observed: 441.74 ft at 10:30AM Jan 16, 2021Observed: 441.85 ft at 11:00AM Jan 16, 2021Observed: 441.75 ft at 11:30AM Jan 16, 2021Observed: 442.19 ft at 12:00PM Jan 16, 2021Observed: 441.79 ft at 12:30PM Jan 16, 2021Observed: 441.79 ft at 1:00PM Jan 16, 2021Observed: 441.74 ft at 1:30PM Jan 16, 2021Observed: 441.83 ft at 2:00PM Jan 16, 2021Observed: 441.84 ft at 2:30PM Jan 16, 2021Observed: 441.87 ft at 3:00PM Jan 16, 2021Observed: 442.03 ft at 3:30PM Jan 16, 2021Observed: 441.98 ft at 4:00PM Jan 16, 2021Observed: 442.06 ft at 4:30PM Jan 16, 2021Observed: 442.12 ft at 5:00PM Jan 16, 2021Observed: 442.1 ft at 5:30PM Jan 16, 2021Observed: 442.39 ft at 6:00PM Jan 16, 2021Observed: 442.19 ft at 6:30PM Jan 16, 2021Observed: 442.18 ft at 7:00PM Jan 16, 2021Observed: 442.18 ft at 7:30PM Jan 16, 2021Observed: 442.32 ft at 8:00PM Jan 16, 2021Observed: 442.3 ft at 8:30PM Jan 16, 2021Observed: 442.4 ft at 9:00PM Jan 16, 2021Observed: 442.32 ft at 9:30PM Jan 16, 2021Observed: 442.34 ft at 10:00PM Jan 16, 2021Observed: 442.33 ft at 10:30PM Jan 16, 2021Observed: 442.36 ft at 11:00PM Jan 16, 2021Observed: 442.36 ft at 11:30PM Jan 16, 2021Observed: 442.38 ft at 12:00AM Jan 17, 2021Observed: 442.38 ft at 12:30AM Jan 17, 2021Observed: 442.38 ft at 1:00AM Jan 17, 2021Observed: 442.37 ft at 1:30AM Jan 17, 2021Observed: 442.34 ft at 2:00AM Jan 17, 2021Observed: 442.33 ft at 2:30AM Jan 17, 2021Observed: 442.27 ft at 3:00AM Jan 17, 2021Highest Observation: 442.43 ft at 3:30AM Jan 17, 2021Observed: 442.3 ft at 4:00AM Jan 17, 2021Observed: 442.25 ft at 4:30AM Jan 17, 2021Observed: 442.22 ft at 5:00AM Jan 17, 2021Observed: 442.2 ft at 5:30AM Jan 17, 2021Observed: 442.25 ft at 6:00AM Jan 17, 2021Observed: 442.22 ft at 6:30AM Jan 17, 2021Observed: 442.19 ft at 7:00AM Jan 17, 2021Observed: 442.21 ft at 7:30AM Jan 17, 2021Observed: 442.17 ft at 8:00AM Jan 17, 2021Highest Forecast: 441.9 ft 12:00PM Jan 17, 2021Highest Forecast: 441.9 ft 6:00PM Jan 17, 2021Highest Forecast: 441.9 ft 12:00AM Jan 18, 2021Highest Forecast: 441.9 ft 6:00AM Jan 18, 2021Highest Forecast: 441.9 ft 12:00PM Jan 18, 2021Forecast: 441.8 ft 6:00PM Jan 18, 2021Forecast: 441.8 ft 12:00AM Jan 19, 2021Forecast: 441.8 ft 6:00AM Jan 19, 2021Forecast: 441.8 ft 12:00PM Jan 19, 2021Forecast: 441.8 ft 6:00PM Jan 19, 2021Forecast: 441.7 ft 12:00AM Jan 20, 2021Forecast: 441.7 ft 6:00AM Jan 20, 2021Forecast: 441.7 ft 12:00PM Jan 20, 2021Forecast: 441.7 ft 6:00PM Jan 20, 2021Forecast: 441.7 ft 12:00AM Jan 21, 2021Forecast: 441.7 ft 6:00AM Jan 21, 2021Forecast: 441.6 ft 12:00PM Jan 21, 2021Forecast: 441.6 ft 6:00PM Jan 21, 2021Forecast: 441.6 ft 12:00AM Jan 22, 2021Forecast: 441.6 ft 6:00AM Jan 22, 2021Forecast: 441.6 ft 12:00PM Jan 22, 2021Forecast: 441.6 ft 6:00PM Jan 22, 2021Forecast: 441.6 ft 12:00AM Jan 23, 2021Forecast: 441.5 ft 6:00AM Jan 23, 2021USACESRDI2(plotting HTIRG) Graph Created (9:39AM Jan 17, 2021)ObservedForecast (issued 9:43AM Jan 16)Latest observed value: 442.17 ft at 8:00 AM CST 17-Jan-2021. Flood Stage is 450 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
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 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Illinois River at Starved Rock Lock (tailwater) are issued routinely year-round.

Return to Area Map
Upstream Gauge - at Ottawa Upstream Gauge Downstream Gauge Downstream Gauge - near La Salle
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 450
Action Stage: 449
Low Stage (in feet): 438.7

Historic Crests
(1) 467.81 ft on 04/19/2013
(2) 467.31 ft on 09/16/2008
(3) 464.70 ft on 12/05/1982
(4) 464.61 ft on 05/03/2019 (P)
(5) 464.60 ft on 02/22/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 464.61 ft on 05/03/2019 (P)
(2) 463.65 ft on 02/22/2018 (P)
(3) 453.33 ft on 10/16/2017 (P)
(4) 455.24 ft on 07/23/2017
(5) 459.51 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: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
467.5 North Utica Village Hall and North Utica Police Department are threatened.
464.5 A few residences threatened in North Utica. IL-178 (Clark Street) threatened in North Utica.
463 A couple structures threatened in North Utica.
459 Dee Bennet Road is threatened between Ottawa and Utica.
Photos
(1) Starved Rock
(2) Gates at lock and dam September 2010.
(3) Looking upstream. September 2010.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
438.7 Low water levels begin to impact shipping interests along the river.
About This Location Collapse

Latitude: 41.324722° N, Longitude: 88.983889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 450 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 0 ft 450 ft  

Current/Historical Observations:
Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
How low could the river get?
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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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