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Hydrograph River at a Glance Download
Illinois River at Starved Rock Lock (tailwater) Tailwater (ft)Flow (kcfs)Observed: 440.98 ft at 10:00PM Oct 12, 2020Observed: 440.97 ft at 10:30PM Oct 12, 2020Observed: 440.93 ft at 11:00PM Oct 12, 2020Observed: 440.91 ft at 11:30PM Oct 12, 2020Observed: 440.87 ft at 12:00AM Oct 13, 2020Observed: 440.86 ft at 12:30AM Oct 13, 2020Observed: 440.84 ft at 1:00AM Oct 13, 2020Observed: 440.83 ft at 1:30AM Oct 13, 2020Observed: 440.83 ft at 2:00AM Oct 13, 2020Observed: 440.82 ft at 2:30AM Oct 13, 2020Observed: 440.82 ft at 3:00AM Oct 13, 2020Observed: 440.81 ft at 3:30AM Oct 13, 2020Observed: 440.81 ft at 4:00AM Oct 13, 2020Observed: 440.89 ft at 4:30AM Oct 13, 2020Observed: 440.95 ft at 5:00AM Oct 13, 2020Observed: 440.96 ft at 5:30AM Oct 13, 2020Observed: 440.94 ft at 6:00AM Oct 13, 2020Observed: 440.96 ft at 6:30AM Oct 13, 2020Observed: 440.95 ft at 7:00AM Oct 13, 2020Observed: 440.92 ft at 7:30AM Oct 13, 2020Observed: 440.91 ft at 8:00AM Oct 13, 2020Observed: 440.89 ft at 8:30AM Oct 13, 2020Observed: 440.9 ft at 9:00AM Oct 13, 2020Observed: 440.9 ft at 9:30AM Oct 13, 2020Observed: 440.9 ft at 10:00AM Oct 13, 2020Observed: 440.93 ft at 10:30AM Oct 13, 2020Observed: 441.04 ft at 11:00AM Oct 13, 2020Observed: 441.05 ft at 11:30AM Oct 13, 2020Observed: 441.07 ft at 12:00PM Oct 13, 2020Observed: 441.14 ft at 12:30PM Oct 13, 2020Observed: 441.16 ft at 1:00PM Oct 13, 2020Observed: 441.19 ft at 1:30PM Oct 13, 2020Observed: 441.26 ft at 2:00PM Oct 13, 2020Observed: 441.27 ft at 2:30PM Oct 13, 2020Observed: 441.38 ft at 3:00PM Oct 13, 2020Observed: 441.42 ft at 3:30PM Oct 13, 2020Observed: 441.48 ft at 4:00PM Oct 13, 2020Observed: 441.5 ft at 4:30PM Oct 13, 2020Observed: 441.52 ft at 5:00PM Oct 13, 2020Observed: 441.58 ft at 5:30PM Oct 13, 2020Observed: 441.57 ft at 6:00PM Oct 13, 2020Observed: 441.57 ft at 6:30PM Oct 13, 2020Observed: 441.52 ft at 7:00PM Oct 13, 2020Observed: 441.49 ft at 7:30PM Oct 13, 2020Observed: 441.5 ft at 8:00PM Oct 13, 2020Observed: 441.51 ft at 8:30PM Oct 13, 2020Observed: 441.52 ft at 9:00PM Oct 13, 2020Observed: 441.55 ft at 9:30PM Oct 13, 2020Observed: 441.61 ft at 10:00PM Oct 13, 2020Observed: 441.63 ft at 10:30PM Oct 13, 2020Observed: 441.66 ft at 11:00PM Oct 13, 2020Observed: 441.68 ft at 11:30PM Oct 13, 2020Observed: 441.72 ft at 12:00AM Oct 14, 2020Observed: 441.71 ft at 12:30AM Oct 14, 2020Observed: 441.75 ft at 1:00AM Oct 14, 2020Observed: 441.74 ft at 1:30AM Oct 14, 2020Observed: 441.76 ft at 2:00AM Oct 14, 2020Observed: 441.77 ft at 2:30AM Oct 14, 2020Observed: 441.76 ft at 3:00AM Oct 14, 2020Highest Observation: 441.79 ft at 3:30AM Oct 14, 2020Observed: 441.78 ft at 4:00AM Oct 14, 2020Observed: 441.78 ft at 4:30AM Oct 14, 2020Observed: 441.78 ft at 5:00AM Oct 14, 2020Observed: 441.78 ft at 5:30AM Oct 14, 2020Highest Observation: 441.79 ft at 6:00AM Oct 14, 2020Highest Observation: 441.79 ft at 6:30AM Oct 14, 2020Observed: 441.72 ft at 7:00AM Oct 14, 2020Observed: 441.64 ft at 7:30AM Oct 14, 2020Observed: 441.57 ft at 8:00AM Oct 14, 2020Observed: 441.56 ft at 8:30AM Oct 14, 2020Observed: 441.52 ft at 9:00AM Oct 14, 2020Observed: 441.44 ft at 9:30AM Oct 14, 2020Observed: 441.37 ft at 10:00AM Oct 14, 2020Observed: 441.34 ft at 10:30AM Oct 14, 2020Observed: 441.29 ft at 11:00AM Oct 14, 2020Observed: 441.27 ft at 11:30AM Oct 14, 2020Observed: 441.26 ft at 12:00PM Oct 14, 2020Observed: 441.24 ft at 12:30PM Oct 14, 2020Observed: 441.16 ft at 1:00PM Oct 14, 2020Observed: 441.08 ft at 1:30PM Oct 14, 2020Observed: 441.08 ft at 2:00PM Oct 14, 2020Observed: 441.01 ft at 2:30PM Oct 14, 2020Observed: 440.98 ft at 3:00PM Oct 14, 2020Observed: 440.98 ft at 3:30PM Oct 14, 2020Observed: 440.99 ft at 4:00PM Oct 14, 2020Observed: 441.05 ft at 4:30PM Oct 14, 2020Observed: 441.11 ft at 5:00PM Oct 14, 2020Observed: 441.27 ft at 5:30PM Oct 14, 2020Observed: 441.34 ft at 6:00PM Oct 14, 2020Observed: 441.43 ft at 6:30PM Oct 14, 2020Observed: 441.52 ft at 7:00PM Oct 14, 2020Observed: 441.55 ft at 7:30PM Oct 14, 2020Observed: 441.59 ft at 8:00PM Oct 14, 2020Observed: 441.53 ft at 8:30PM Oct 14, 2020Observed: 441.58 ft at 9:00PM Oct 14, 2020Observed: 441.53 ft at 9:30PM Oct 14, 2020Observed: 441.43 ft at 10:00PM Oct 14, 2020Observed: 441.43 ft at 10:30PM Oct 14, 2020Observed: 441.41 ft at 11:00PM Oct 14, 2020Observed: 441.31 ft at 11:30PM Oct 14, 2020Observed: 441.3 ft at 12:00AM Oct 15, 2020Observed: 441.23 ft at 12:30AM Oct 15, 2020Observed: 441.25 ft at 1:00AM Oct 15, 2020Observed: 441.27 ft at 1:30AM Oct 15, 2020Observed: 441.11 ft at 2:00AM Oct 15, 2020Observed: 441.05 ft at 2:30AM Oct 15, 2020Observed: 441.03 ft at 3:00AM Oct 15, 2020Observed: 441.02 ft at 3:30AM Oct 15, 2020Observed: 441.3 ft at 4:00AM Oct 15, 2020Observed: 441.32 ft at 4:30AM Oct 15, 2020Observed: 441.3 ft at 5:00AM Oct 15, 2020Observed: 441.28 ft at 5:30AM Oct 15, 2020Observed: 441.34 ft at 6:00AM Oct 15, 2020Observed: 441.32 ft at 6:30AM Oct 15, 2020Observed: 441.31 ft at 7:00AM Oct 15, 2020Observed: 441.37 ft at 7:30AM Oct 15, 2020Observed: 441.43 ft at 8:00AM Oct 15, 2020Observed: 441.42 ft at 10:30AM Oct 15, 2020Observed: 441.4 ft at 11:00AM Oct 15, 2020Observed: 441.38 ft at 11:30AM Oct 15, 2020Observed: 441.39 ft at 12:00PM Oct 15, 2020Observed: 441.42 ft at 12:30PM Oct 15, 2020Observed: 441.32 ft at 1:00PM Oct 15, 2020Observed: 441.37 ft at 1:30PM Oct 15, 2020Observed: 441.34 ft at 2:00PM Oct 15, 2020Observed: 441.28 ft at 2:30PM Oct 15, 2020Observed: 441.33 ft at 3:00PM Oct 15, 2020Observed: 441.32 ft at 3:30PM Oct 15, 2020Observed: 441.32 ft at 4:00PM Oct 15, 2020Observed: 441.18 ft at 4:30PM Oct 15, 2020Observed: 441.2 ft at 5:00PM Oct 15, 2020Observed: 441.23 ft at 5:30PM Oct 15, 2020Observed: 441.19 ft at 6:00PM Oct 15, 2020Observed: 441.13 ft at 6:30PM Oct 15, 2020Observed: 441.13 ft at 7:00PM Oct 15, 2020Observed: 441.11 ft at 7:30PM Oct 15, 2020Observed: 441.1 ft at 8:00PM Oct 15, 2020Observed: 440.99 ft at 8:30PM Oct 15, 2020Observed: 440.94 ft at 9:00PM Oct 15, 2020Observed: 440.88 ft at 9:30PM Oct 15, 2020Observed: 440.86 ft at 10:00PM Oct 15, 2020Observed: 440.84 ft at 10:30PM Oct 15, 2020Observed: 440.85 ft at 11:00PM Oct 15, 2020Observed: 440.83 ft at 11:30PM Oct 15, 2020Observed: 440.82 ft at 12:00AM Oct 16, 2020Observed: 440.83 ft at 12:30AM Oct 16, 2020Observed: 440.83 ft at 1:00AM Oct 16, 2020Observed: 440.83 ft at 1:30AM Oct 16, 2020Observed: 440.83 ft at 2:00AM Oct 16, 2020Observed: 440.85 ft at 2:30AM Oct 16, 2020Observed: 440.85 ft at 3:00AM Oct 16, 2020Observed: 440.84 ft at 3:30AM Oct 16, 2020Observed: 440.86 ft at 4:00AM Oct 16, 2020Observed: 441.01 ft at 4:30AM Oct 16, 2020Observed: 441.04 ft at 5:00AM Oct 16, 2020Observed: 441.06 ft at 5:30AM Oct 16, 2020Observed: 441.09 ft at 6:00AM Oct 16, 2020Observed: 441.11 ft at 6:30AM Oct 16, 2020Observed: 441.12 ft at 7:00AM Oct 16, 2020Observed: 441.13 ft at 7:30AM Oct 16, 2020Observed: 441.14 ft at 8:00AM Oct 16, 2020Observed: 441.16 ft at 8:30AM Oct 16, 2020Observed: 441.21 ft at 9:00AM Oct 16, 2020Observed: 441.13 ft at 9:30AM Oct 16, 2020Observed: 441.12 ft at 10:00AM Oct 16, 2020Observed: 441.13 ft at 10:30AM Oct 16, 2020Observed: 441.11 ft at 11:00AM Oct 16, 2020Observed: 441.17 ft at 11:30AM Oct 16, 2020Observed: 441.15 ft at 12:00PM Oct 16, 2020Observed: 441.14 ft at 12:30PM Oct 16, 2020Observed: 441.2 ft at 1:00PM Oct 16, 2020Observed: 441.17 ft at 1:30PM Oct 16, 2020Observed: 441.14 ft at 2:00PM Oct 16, 2020Observed: 441.13 ft at 2:30PM Oct 16, 2020Observed: 441.09 ft at 3:00PM Oct 16, 2020Observed: 441.19 ft at 3:30PM Oct 16, 2020Observed: 441.2 ft at 4:00PM Oct 16, 2020Observed: 441.19 ft at 4:30PM Oct 16, 2020Observed: 441.16 ft at 5:00PM Oct 16, 2020Observed: 441.15 ft at 5:30PM Oct 16, 2020Observed: 441.22 ft at 6:00PM Oct 16, 2020Observed: 441.1 ft at 6:30PM Oct 16, 2020Observed: 441.08 ft at 7:00PM Oct 16, 2020Observed: 441.03 ft at 7:30PM Oct 16, 2020Observed: 441.01 ft at 8:00PM Oct 16, 2020Observed: 441 ft at 8:30PM Oct 16, 2020Observed: 440.98 ft at 9:00PM Oct 16, 2020Observed: 440.89 ft at 9:30PM Oct 16, 2020Observed: 440.86 ft at 10:00PM Oct 16, 2020Observed: 440.84 ft at 10:30PM Oct 16, 2020Observed: 440.85 ft at 11:00PM Oct 16, 2020Observed: 440.87 ft at 11:30PM Oct 16, 2020Observed: 440.86 ft at 12:00AM Oct 17, 2020Observed: 440.86 ft at 12:30AM Oct 17, 2020Observed: 440.85 ft at 1:00AM Oct 17, 2020Observed: 440.84 ft at 1:30AM Oct 17, 2020Observed: 440.83 ft at 2:00AM Oct 17, 2020Observed: 440.83 ft at 2:30AM Oct 17, 2020Observed: 440.83 ft at 3:00AM Oct 17, 2020Observed: 440.81 ft at 3:30AM Oct 17, 2020Observed: 440.9 ft at 4:00AM Oct 17, 2020Observed: 440.97 ft at 4:30AM Oct 17, 2020Observed: 440.98 ft at 5:00AM Oct 17, 2020Observed: 440.99 ft at 5:30AM Oct 17, 2020Observed: 441.01 ft at 6:00AM Oct 17, 2020Observed: 441.03 ft at 6:30AM Oct 17, 2020Observed: 441.03 ft at 7:00AM Oct 17, 2020Observed: 441.06 ft at 7:30AM Oct 17, 2020Observed: 441.06 ft at 8:00AM Oct 17, 2020Observed: 441.05 ft at 8:30AM Oct 17, 2020Observed: 441.08 ft at 9:00AM Oct 17, 2020Observed: 441.05 ft at 9:30AM Oct 17, 2020Observed: 441.05 ft at 10:00AM Oct 17, 2020Observed: 441.03 ft at 10:30AM Oct 17, 2020Observed: 441.01 ft at 11:00AM Oct 17, 2020Observed: 440.99 ft at 11:30AM Oct 17, 2020Observed: 441.01 ft at 12:00PM Oct 17, 2020Observed: 441.03 ft at 12:30PM Oct 17, 2020Observed: 441.01 ft at 1:00PM Oct 17, 2020Observed: 441.06 ft at 1:30PM Oct 17, 2020Observed: 441.16 ft at 2:00PM Oct 17, 2020Observed: 441.3 ft at 2:30PM Oct 17, 2020Observed: 441.33 ft at 3:00PM Oct 17, 2020Observed: 441.38 ft at 3:30PM Oct 17, 2020Observed: 441.3 ft at 4:00PM Oct 17, 2020Observed: 441.31 ft at 4:30PM Oct 17, 2020Observed: 441.33 ft at 5:00PM Oct 17, 2020Observed: 441.38 ft at 5:30PM Oct 17, 2020Observed: 441.41 ft at 6:00PM Oct 17, 2020Observed: 441.47 ft at 6:30PM Oct 17, 2020Observed: 441.45 ft at 7:00PM Oct 17, 2020Observed: 441.4 ft at 7:30PM Oct 17, 2020Observed: 441.44 ft at 8:00PM Oct 17, 2020Observed: 441.42 ft at 8:30PM Oct 17, 2020Observed: 441.43 ft at 9:00PM Oct 17, 2020Observed: 441.4 ft at 9:30PM Oct 17, 2020Observed: 441.4 ft at 10:00PM Oct 17, 2020Observed: 441.39 ft at 10:30PM Oct 17, 2020Observed: 441.37 ft at 11:00PM Oct 17, 2020Observed: 441.37 ft at 11:30PM Oct 17, 2020Observed: 441.4 ft at 12:00AM Oct 18, 2020Observed: 441.42 ft at 12:30AM Oct 18, 2020Observed: 441.43 ft at 1:00AM Oct 18, 2020Observed: 441.42 ft at 1:30AM Oct 18, 2020Observed: 441.42 ft at 2:00AM Oct 18, 2020Observed: 441.43 ft at 2:30AM Oct 18, 2020Observed: 441.41 ft at 3:00AM Oct 18, 2020Observed: 441.43 ft at 3:30AM Oct 18, 2020Observed: 441.43 ft at 4:00AM Oct 18, 2020Observed: 441.42 ft at 4:30AM Oct 18, 2020Observed: 441.42 ft at 5:00AM Oct 18, 2020Observed: 441.4 ft at 5:30AM Oct 18, 2020Observed: 441.39 ft at 6:00AM Oct 18, 2020Observed: 441.38 ft at 6:30AM Oct 18, 2020Observed: 441.39 ft at 7:00AM Oct 18, 2020Observed: 441.39 ft at 7:30AM Oct 18, 2020Observed: 441.42 ft at 8:00AM Oct 18, 2020Observed: 441.36 ft at 8:30AM Oct 18, 2020Observed: 441.37 ft at 9:00AM Oct 18, 2020Observed: 441.35 ft at 9:30AM Oct 18, 2020Observed: 441.34 ft at 10:00AM Oct 18, 2020Observed: 441.27 ft at 10:30AM Oct 18, 2020Observed: 441.24 ft at 11:00AM Oct 18, 2020Observed: 441.23 ft at 11:30AM Oct 18, 2020Observed: 441.2 ft at 12:00PM Oct 18, 2020Observed: 441.1 ft at 12:30PM Oct 18, 2020Observed: 441.13 ft at 1:00PM Oct 18, 2020Observed: 441.08 ft at 1:30PM Oct 18, 2020Observed: 441.13 ft at 2:00PM Oct 18, 2020Observed: 441.12 ft at 2:30PM Oct 18, 2020Observed: 441.07 ft at 3:00PM Oct 18, 2020Observed: 441.06 ft at 3:30PM Oct 18, 2020Observed: 441.05 ft at 4:00PM Oct 18, 2020Observed: 441.05 ft at 4:30PM Oct 18, 2020Observed: 441.01 ft at 5:00PM Oct 18, 2020Observed: 440.98 ft at 5:30PM Oct 18, 2020Observed: 440.95 ft at 6:00PM Oct 18, 2020Observed: 440.95 ft at 6:30PM Oct 18, 2020Observed: 440.95 ft at 7:00PM Oct 18, 2020Observed: 440.95 ft at 7:30PM Oct 18, 2020Observed: 440.96 ft at 8:00PM Oct 18, 2020Observed: 440.98 ft at 8:30PM Oct 18, 2020Observed: 440.99 ft at 9:00PM Oct 18, 2020Observed: 441 ft at 9:30PM Oct 18, 2020Observed: 441 ft at 10:00PM Oct 18, 2020Observed: 441.01 ft at 10:30PM Oct 18, 2020Observed: 441.03 ft at 11:00PM Oct 18, 2020Observed: 441.02 ft at 11:30PM Oct 18, 2020Observed: 441.04 ft at 12:00AM Oct 19, 2020Observed: 441.03 ft at 12:30AM Oct 19, 2020Observed: 441.05 ft at 1:00AM Oct 19, 2020Observed: 441.04 ft at 1:30AM Oct 19, 2020Observed: 441.05 ft at 2:00AM Oct 19, 2020Observed: 441.08 ft at 2:30AM Oct 19, 2020Observed: 441.07 ft at 3:00AM Oct 19, 2020Observed: 440.9 ft at 8:30AM Oct 19, 2020Observed: 440.92 ft at 9:00AM Oct 19, 2020Observed: 440.9 ft at 9:30AM Oct 19, 2020Observed: 440.89 ft at 10:00AM Oct 19, 2020Observed: 440.88 ft at 10:30AM Oct 19, 2020Observed: 440.85 ft at 11:00AM Oct 19, 2020Observed: 440.9 ft at 11:30AM Oct 19, 2020Observed: 440.88 ft at 12:00PM Oct 19, 2020Observed: 440.87 ft at 12:30PM Oct 19, 2020Observed: 440.86 ft at 1:00PM Oct 19, 2020Observed: 440.95 ft at 1:30PM Oct 19, 2020Observed: 440.86 ft at 2:00PM Oct 19, 2020Observed: 440.81 ft at 2:30PM Oct 19, 2020Observed: 440.77 ft at 3:00PM Oct 19, 2020Observed: 440.89 ft at 3:30PM Oct 19, 2020Observed: 440.75 ft at 4:00PM Oct 19, 2020Observed: 440.72 ft at 4:30PM Oct 19, 2020Observed: 440.68 ft at 5:00PM Oct 19, 2020Observed: 440.67 ft at 5:30PM Oct 19, 2020Observed: 440.69 ft at 6:00PM Oct 19, 2020Observed: 440.65 ft at 6:30PM Oct 19, 2020Observed: 440.59 ft at 7:00PM Oct 19, 2020Observed: 440.53 ft at 7:30PM Oct 19, 2020Observed: 440.53 ft at 8:00PM Oct 19, 2020Observed: 440.52 ft at 8:30PM Oct 19, 2020Observed: 440.48 ft at 9:00PM Oct 19, 2020Forecast: 441 ft 1:00AM Oct 20, 2020Forecast: 441 ft 7:00AM Oct 20, 2020Forecast: 441.1 ft 1:00PM Oct 20, 2020Forecast: 441.1 ft 7:00PM Oct 20, 2020Forecast: 441.2 ft 1:00AM Oct 21, 2020Forecast: 441.2 ft 7:00AM Oct 21, 2020Forecast: 441.3 ft 1:00PM Oct 21, 2020Forecast: 441.3 ft 7:00PM Oct 21, 2020Highest Forecast: 441.4 ft 1:00AM Oct 22, 2020Highest Forecast: 441.4 ft 7:00AM Oct 22, 2020Highest Forecast: 441.4 ft 1:00PM Oct 22, 2020Forecast: 441.3 ft 7:00PM Oct 22, 2020Forecast: 441.3 ft 1:00AM Oct 23, 2020Forecast: 441.2 ft 7:00AM Oct 23, 2020Forecast: 441.2 ft 1:00PM Oct 23, 2020Forecast: 441.2 ft 7:00PM Oct 23, 2020Forecast: 441.1 ft 1:00AM Oct 24, 2020Forecast: 441.1 ft 7:00AM Oct 24, 2020Forecast: 441.1 ft 1:00PM Oct 24, 2020Forecast: 441.1 ft 7:00PM Oct 24, 2020Forecast: 441 ft 1:00AM Oct 25, 2020Forecast: 441 ft 7:00AM Oct 25, 2020Forecast: 441 ft 1:00PM Oct 25, 2020Forecast: 441 ft 7:00PM Oct 25, 2020Forecast: 441 ft 1:00AM Oct 26, 2020Forecast: 441 ft 7:00AM Oct 26, 2020USACESRDI2(plotting HTIRG) Graph Created (9:54PM Oct 19, 2020)ObservedForecast (issued 10:29AM Oct 19)Latest observed value: 440.48 ft at 9:00 PM CDT 19-Oct-2020. Flood Stage is 450 ft
Printable Image
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 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): -9999

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.
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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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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