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Hydrograph River at a Glance Download
Illinois River at Peoria Lock and Dam Tailwater (ft)Observed: 432.34 ft at 4:00PM Oct 23, 2020Observed: 432.5 ft at 6:00PM Oct 23, 2020Observed: 432.83 ft at 8:00PM Oct 23, 2020Observed: 433.02 ft at 10:00PM Oct 23, 2020Observed: 433.2 ft at 12:00AM Oct 24, 2020Observed: 433.25 ft at 2:00AM Oct 24, 2020Observed: 433.35 ft at 4:00AM Oct 24, 2020Observed: 433.4 ft at 6:00AM Oct 24, 2020Observed: 433.49 ft at 8:00AM Oct 24, 2020Observed: 433.56 ft at 10:00AM Oct 24, 2020Observed: 433.62 ft at 12:00PM Oct 24, 2020Observed: 433.68 ft at 2:00PM Oct 24, 2020Observed: 433.7 ft at 4:00PM Oct 24, 2020Observed: 433.67 ft at 6:00PM Oct 24, 2020Observed: 433.82 ft at 8:00PM Oct 24, 2020Observed: 433.95 ft at 10:00PM Oct 24, 2020Observed: 433.99 ft at 12:00AM Oct 25, 2020Observed: 434.08 ft at 2:00AM Oct 25, 2020Observed: 434.11 ft at 4:00AM Oct 25, 2020Observed: 434.13 ft at 6:00AM Oct 25, 2020Observed: 434.15 ft at 8:00AM Oct 25, 2020Observed: 434.18 ft at 10:00AM Oct 25, 2020Observed: 434.19 ft at 12:00PM Oct 25, 2020Observed: 434.2 ft at 2:00PM Oct 25, 2020Observed: 434.23 ft at 4:00PM Oct 25, 2020Observed: 434.33 ft at 6:00PM Oct 25, 2020Observed: 434.47 ft at 8:00PM Oct 25, 2020Observed: 434.54 ft at 10:00PM Oct 25, 2020Observed: 434.51 ft at 12:00AM Oct 26, 2020Observed: 434.54 ft at 2:00AM Oct 26, 2020Observed: 434.57 ft at 4:00AM Oct 26, 2020Observed: 434.6 ft at 6:00AM Oct 26, 2020Observed: 434.61 ft at 8:00AM Oct 26, 2020Observed: 434.63 ft at 10:00AM Oct 26, 2020Observed: 434.65 ft at 12:00PM Oct 26, 2020Observed: 434.63 ft at 2:00PM Oct 26, 2020Observed: 434.6 ft at 4:00PM Oct 26, 2020Observed: 434.6 ft at 6:00PM Oct 26, 2020Observed: 434.68 ft at 8:00PM Oct 26, 2020Highest Observation: 434.7 ft at 10:00PM Oct 26, 2020Observed: 434.64 ft at 12:00AM Oct 27, 2020Observed: 434.66 ft at 2:00AM Oct 27, 2020Observed: 434.66 ft at 4:00AM Oct 27, 2020Observed: 434.61 ft at 6:00AM Oct 27, 2020Observed: 434.49 ft at 8:00AM Oct 27, 2020Observed: 434.5 ft at 10:00AM Oct 27, 2020Observed: 434.47 ft at 12:00PM Oct 27, 2020Observed: 434.39 ft at 2:00PM Oct 27, 2020Observed: 434.29 ft at 4:00PM Oct 27, 2020Observed: 434.15 ft at 6:00PM Oct 27, 2020Observed: 434.04 ft at 8:00PM Oct 27, 2020Observed: 433.97 ft at 10:00PM Oct 27, 2020Observed: 433.9 ft at 12:00AM Oct 28, 2020Observed: 433.83 ft at 2:00AM Oct 28, 2020Observed: 433.76 ft at 4:00AM Oct 28, 2020Observed: 433.59 ft at 6:00AM Oct 28, 2020Observed: 433.52 ft at 8:00AM Oct 28, 2020Observed: 433.33 ft at 10:00AM Oct 28, 2020Observed: 432.84 ft at 12:00PM Oct 28, 2020Observed: 432.76 ft at 2:00PM Oct 28, 2020Observed: 432.79 ft at 4:00PM Oct 28, 2020Observed: 432.65 ft at 6:00PM Oct 28, 2020Observed: 432.64 ft at 8:00PM Oct 28, 2020Observed: 432.58 ft at 10:00PM Oct 28, 2020Observed: 432.58 ft at 12:00AM Oct 29, 2020Observed: 432.57 ft at 2:00AM Oct 29, 2020Observed: 432.56 ft at 4:00AM Oct 29, 2020Observed: 432.56 ft at 6:00AM Oct 29, 2020Observed: 432.51 ft at 8:00AM Oct 29, 2020Observed: 432.5 ft at 10:00AM Oct 29, 2020Observed: 432.58 ft at 12:00PM Oct 29, 2020Observed: 432.63 ft at 2:00PM Oct 29, 2020Observed: 432.74 ft at 4:00PM Oct 29, 2020Observed: 432.89 ft at 6:00PM Oct 29, 2020Observed: 433.06 ft at 8:00PM Oct 29, 2020Observed: 433.02 ft at 10:00PM Oct 29, 2020Observed: 433.05 ft at 12:00AM Oct 30, 2020Observed: 432.85 ft at 2:00AM Oct 30, 2020Observed: 432.71 ft at 4:00AM Oct 30, 2020Observed: 432.47 ft at 6:00AM Oct 30, 2020Observed: 432.47 ft at 8:00AM Oct 30, 2020Observed: 432.37 ft at 10:00AM Oct 30, 2020Observed: 432.24 ft at 12:00PM Oct 30, 2020Observed: 431.84 ft at 2:00PM Oct 30, 2020Highest Forecast: 432.4 ft 7:00PM Oct 30, 2020Forecast: 432.3 ft 1:00AM Oct 31, 2020Forecast: 432.2 ft 7:00AM Oct 31, 2020Forecast: 432 ft 1:00PM Oct 31, 2020Forecast: 431.9 ft 7:00PM Oct 31, 2020Forecast: 431.8 ft 1:00AM Nov 01, 2020Forecast: 431.7 ft 6:00AM Nov 01, 2020Forecast: 431.6 ft 12:00PM Nov 01, 2020Forecast: 431.5 ft 6:00PM Nov 01, 2020Forecast: 431.4 ft 12:00AM Nov 02, 2020Forecast: 431.3 ft 6:00AM Nov 02, 2020Forecast: 431.3 ft 12:00PM Nov 02, 2020Forecast: 431.2 ft 6:00PM Nov 02, 2020Forecast: 431.2 ft 12:00AM Nov 03, 2020Forecast: 431.1 ft 6:00AM Nov 03, 2020Forecast: 431.1 ft 12:00PM Nov 03, 2020Forecast: 431.1 ft 6:00PM Nov 03, 2020Forecast: 431.1 ft 12:00AM Nov 04, 2020Forecast: 431 ft 6:00AM Nov 04, 2020Forecast: 431 ft 12:00PM Nov 04, 2020Forecast: 431 ft 6:00PM Nov 04, 2020Forecast: 431 ft 12:00AM Nov 05, 2020Forecast: 431 ft 6:00AM Nov 05, 2020Forecast: 430.9 ft 12:00PM Nov 05, 2020Forecast: 430.9 ft 6:00PM Nov 05, 2020Forecast: 430.9 ft 12:00AM Nov 06, 2020Forecast: 430.9 ft 6:00AM Nov 06, 2020USACE - Water Levels of Rivers and LakesPRAI2(plotting HTIRZ) Graph Created (2:37PM Oct 30, 2020)ObservedForecast (issued 8:47AM Oct 30)Latest observed value: 431.84 ft at 2:00 PM CDT 30-Oct-2020. Flood Stage is 447 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 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Illinois River at Peoria Lock and Dam are issued routinely year-round.

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Upstream Gauge - at Peoria Upstream Gauge Downstream Gauge Downstream Gauge - near Havana
Flood Categories (in feet)
Major Flood Stage: 455
Moderate Flood Stage: 449
Flood Stage: 447
Action Stage: 444
Low Stage (in feet): -9999

Historic Crests
(1) 456.57 ft on 04/24/2013
(2) 455.90 ft on 05/24/1943
(3) 455.80 ft on 03/23/1979
(4) 455.60 ft on 03/08/1985
(5) 455.06 ft on 05/07/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 454.89 ft on 05/22/2020 (P)
(2) 446.22 ft on 01/19/2020 (P)
(3) 447.19 ft on 11/04/2019 (P)
(4) 447.28 ft on 10/03/2019 (P)
(5) 447.54 ft on 06/24/2019
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
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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.
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Photos
(1) Looking Downstream
(2) Looking Upstream
About This Location Collapse

Latitude: 40.633330° N, Longitude: 89.625000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 447 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 447.0 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:
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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
Lincoln Weather Forecast Office
1362 State Route 10
Lincoln, IL 62656
(217) 732-3089
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