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Hydrograph River at a Glance Download
Illinois River at Peoria Lock and Dam Tailwater (ft)Observed: 438.86 ft at 10:00AM Jun 25, 2020Observed: 438.83 ft at 12:00PM Jun 25, 2020Observed: 438.81 ft at 2:00PM Jun 25, 2020Observed: 438.8 ft at 4:00PM Jun 25, 2020Observed: 438.78 ft at 6:00PM Jun 25, 2020Observed: 438.76 ft at 8:00PM Jun 25, 2020Observed: 438.74 ft at 10:00PM Jun 25, 2020Observed: 438.72 ft at 12:00AM Jun 26, 2020Observed: 438.7 ft at 2:00AM Jun 26, 2020Observed: 438.68 ft at 4:00AM Jun 26, 2020Observed: 438.64 ft at 6:00AM Jun 26, 2020Observed: 438.59 ft at 8:00AM Jun 26, 2020Observed: 438.57 ft at 10:00AM Jun 26, 2020Observed: 438.52 ft at 12:00PM Jun 26, 2020Observed: 438.51 ft at 2:00PM Jun 26, 2020Observed: 438.41 ft at 4:00PM Jun 26, 2020Observed: 438.4 ft at 6:00PM Jun 26, 2020Observed: 438.24 ft at 8:00PM Jun 26, 2020Observed: 438.35 ft at 10:00PM Jun 26, 2020Observed: 438.32 ft at 12:00AM Jun 27, 2020Observed: 438.34 ft at 2:00AM Jun 27, 2020Observed: 438.35 ft at 4:00AM Jun 27, 2020Observed: 438.37 ft at 6:00AM Jun 27, 2020Observed: 438.35 ft at 8:00AM Jun 27, 2020Observed: 438.33 ft at 10:00AM Jun 27, 2020Observed: 438.35 ft at 12:00PM Jun 27, 2020Observed: 438.33 ft at 2:00PM Jun 27, 2020Observed: 438.31 ft at 4:00PM Jun 27, 2020Observed: 438.31 ft at 6:00PM Jun 27, 2020Observed: 438.29 ft at 8:00PM Jun 27, 2020Observed: 438.27 ft at 10:00PM Jun 27, 2020Observed: 438.29 ft at 12:00AM Jun 28, 2020Observed: 438.3 ft at 2:00AM Jun 28, 2020Observed: 438.3 ft at 4:00AM Jun 28, 2020Observed: 438.3 ft at 6:00AM Jun 28, 2020Observed: 438.3 ft at 8:00AM Jun 28, 2020Observed: 438.31 ft at 10:00AM Jun 28, 2020Observed: 438.3 ft at 12:00PM Jun 28, 2020Observed: 438.31 ft at 2:00PM Jun 28, 2020Observed: 438.3 ft at 4:00PM Jun 28, 2020Observed: 438.28 ft at 6:00PM Jun 28, 2020Observed: 438.27 ft at 8:00PM Jun 28, 2020Observed: 438.3 ft at 10:00PM Jun 28, 2020Observed: 438.26 ft at 12:00AM Jun 29, 2020Observed: 438.33 ft at 2:00AM Jun 29, 2020Observed: 438.29 ft at 4:00AM Jun 29, 2020Observed: 438.36 ft at 6:00AM Jun 29, 2020Observed: 438.31 ft at 8:00AM Jun 29, 2020Observed: 438.38 ft at 10:00AM Jun 29, 2020Observed: 438.4 ft at 12:00PM Jun 29, 2020Observed: 438.4 ft at 2:00PM Jun 29, 2020Observed: 438.35 ft at 4:00PM Jun 29, 2020Observed: 438.45 ft at 6:00PM Jun 29, 2020Observed: 438.48 ft at 8:00PM Jun 29, 2020Observed: 438.52 ft at 10:00PM Jun 29, 2020Observed: 438.49 ft at 12:00AM Jun 30, 2020Observed: 438.52 ft at 2:00AM Jun 30, 2020Observed: 438.61 ft at 4:00AM Jun 30, 2020Observed: 438.65 ft at 6:00AM Jun 30, 2020Observed: 438.63 ft at 8:00AM Jun 30, 2020Observed: 438.67 ft at 10:00AM Jun 30, 2020Observed: 438.71 ft at 12:00PM Jun 30, 2020Observed: 438.77 ft at 2:00PM Jun 30, 2020Observed: 438.83 ft at 4:00PM Jun 30, 2020Observed: 438.86 ft at 6:00PM Jun 30, 2020Observed: 438.92 ft at 8:00PM Jun 30, 2020Observed: 438.97 ft at 10:00PM Jun 30, 2020Observed: 439.02 ft at 12:00AM Jul 01, 2020Observed: 439.07 ft at 2:00AM Jul 01, 2020Observed: 439.1 ft at 4:00AM Jul 01, 2020Observed: 439.16 ft at 6:00AM Jul 01, 2020Observed: 439.19 ft at 8:00AM Jul 01, 2020Observed: 439.22 ft at 10:00AM Jul 01, 2020Observed: 439.25 ft at 12:00PM Jul 01, 2020Observed: 439.29 ft at 2:00PM Jul 01, 2020Observed: 439.34 ft at 4:00PM Jul 01, 2020Observed: 439.37 ft at 6:00PM Jul 01, 2020Observed: 439.41 ft at 8:00PM Jul 01, 2020Observed: 439.45 ft at 10:00PM Jul 01, 2020Observed: 439.48 ft at 12:00AM Jul 02, 2020Observed: 439.51 ft at 2:00AM Jul 02, 2020Observed: 439.56 ft at 4:00AM Jul 02, 2020Highest Observation: 439.61 ft at 6:00AM Jul 02, 2020Forecast: 440 ft 1:00PM Jul 02, 2020Forecast: 440.1 ft 7:00PM Jul 02, 2020Forecast: 440.2 ft 1:00AM Jul 03, 2020Forecast: 440.2 ft 7:00AM Jul 03, 2020Highest Forecast: 440.3 ft 1:00PM Jul 03, 2020Highest Forecast: 440.3 ft 7:00PM Jul 03, 2020Highest Forecast: 440.3 ft 1:00AM Jul 04, 2020Highest Forecast: 440.3 ft 7:00AM Jul 04, 2020Highest Forecast: 440.3 ft 1:00PM Jul 04, 2020Highest Forecast: 440.3 ft 7:00PM Jul 04, 2020Highest Forecast: 440.3 ft 1:00AM Jul 05, 2020Forecast: 440.2 ft 7:00AM Jul 05, 2020Forecast: 440.1 ft 1:00PM Jul 05, 2020Forecast: 440.1 ft 7:00PM Jul 05, 2020Forecast: 440 ft 1:00AM Jul 06, 2020Forecast: 439.9 ft 7:00AM Jul 06, 2020Forecast: 439.8 ft 1:00PM Jul 06, 2020Forecast: 439.7 ft 7:00PM Jul 06, 2020Forecast: 439.5 ft 1:00AM Jul 07, 2020Forecast: 439.4 ft 7:00AM Jul 07, 2020Forecast: 439.2 ft 1:00PM Jul 07, 2020Forecast: 439.1 ft 7:00PM Jul 07, 2020Forecast: 438.9 ft 1:00AM Jul 08, 2020Forecast: 438.7 ft 7:00AM Jul 08, 2020USACE - Water Levels of Rivers and LakesPRAI2(plotting HTIRZ) Graph Created (8:07AM Jul 2, 2020)ObservedForecast (issued 9:51AM Jul 1)Latest observed value: 439.61 ft at 6:00 AM CDT 2-Jul-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 24 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) 446.22 ft on 01/19/2020 (P)
(2) 447.19 ft on 11/04/2019 (P)
(3) 447.28 ft on 10/03/2019 (P)
(4) 447.54 ft on 06/24/2019
(5) 454.16 ft on 06/02/2019
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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 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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