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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Hydrograph River at a Glance Download
South Papillion Creek near Gretna Stage (ft)Jump to USGS siteGSBN1(plotting HGIRG) Graph Created (4:01PM Oct 4, 2023)Flood Stage is 22 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
NOTE: Forecasts are not available for the South Papillion Creek near Gretna. Only observed stages are available for this point.
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Downstream Gauge Downstream Gauge - at Chalco
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 24
Flood Stage: 22
Action Stage: 17.5
Low Stage (in feet): -9999

Historic Crests
(1) 16.16 ft on 08/23/2016
(2) 15.33 ft on 06/20/2014
(3) 13.12 ft on 05/28/2019
(4) 13.08 ft on 09/24/2015
(5) 13.02 ft on 08/31/2021
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 10.63 ft on 06/15/2022
(2) 13.02 ft on 08/31/2021
(3) 6.42 ft on 07/01/2020
(4) 13.12 ft on 05/28/2019
(5) 11.00 ft on 06/25/2018
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

Zoom Level:12
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Gauge LocationGauge Map Marker
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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If you notice any errors in the below information, please contact our Webmaster
26.4 This level represents a flood that has a 1-percent chance of being equaled or exceeded in any given year. For more information click here.
24 Areas along the south bank begin to flood.
23 Water reaches the bottom of the 192nd street bridge at the gage site.
22 Low lying areas begin to flood.
(1) Papio NRD Alert Station
(2) Looking upstream from gauge site (stage = 5.73 feet)
(3) Looking downstream
(4) Wire weight and radar gauge
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Latitude: 41.173064° N, Longitude: 96.215848° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 22 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 1118.80 ft 1140.80 ft 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 Not Available Not Available Gage zero datum determined using Papio-Missouri River NRD brass elevation cap (no stamp). Gage height of cap is 27.91 feet.

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
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Valley, NE 68064-9443
(402) 359-5166
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Page last modified: 2-Nov-2020 7:29 PM
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