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Hydrograph River at a Glance Download
Mississippi River at Dubuque (LD11) Tailwater (ft)Flow (kcfs)Observed: 9.23 ft at 4:00AM Apr 13, 2014Observed: 9.25 ft at 6:00AM Apr 13, 2014Observed: 9.27 ft at 8:00AM Apr 13, 2014Observed: 9.5 ft at 10:00AM Apr 13, 2014Observed: 9.58 ft at 12:00PM Apr 13, 2014Observed: 9.62 ft at 2:00PM Apr 13, 2014Observed: 9.85 ft at 4:00PM Apr 13, 2014Observed: 10.05 ft at 6:00PM Apr 13, 2014Observed: 10.49 ft at 8:00PM Apr 13, 2014Observed: 10.66 ft at 10:00PM Apr 13, 2014Observed: 10.73 ft at 12:00AM Apr 14, 2014Observed: 10.8 ft at 2:00AM Apr 14, 2014Observed: 10.85 ft at 4:00AM Apr 14, 2014Observed: 10.9 ft at 6:00AM Apr 14, 2014Observed: 10.92 ft at 8:00AM Apr 14, 2014Observed: 11.46 ft at 10:00AM Apr 14, 2014Observed: 11.8 ft at 12:00PM Apr 14, 2014Observed: 11.85 ft at 2:00PM Apr 14, 2014Observed: 11.89 ft at 4:00PM Apr 14, 2014Observed: 11.87 ft at 6:00PM Apr 14, 2014Observed: 11.87 ft at 8:00PM Apr 14, 2014Observed: 11.88 ft at 10:00PM Apr 14, 2014Observed: 11.87 ft at 12:00AM Apr 15, 2014Observed: 11.88 ft at 2:00AM Apr 15, 2014Observed: 11.88 ft at 4:00AM Apr 15, 2014Observed: 11.89 ft at 6:00AM Apr 15, 2014Observed: 11.9 ft at 8:00AM Apr 15, 2014Observed: 11.9 ft at 10:00AM Apr 15, 2014Observed: 11.92 ft at 12:00PM Apr 15, 2014Observed: 11.94 ft at 2:00PM Apr 15, 2014Observed: 11.96 ft at 4:00PM Apr 15, 2014Observed: 11.97 ft at 6:00PM Apr 15, 2014Observed: 12 ft at 8:00PM Apr 15, 2014Observed: 12.02 ft at 10:00PM Apr 15, 2014Observed: 12.04 ft at 12:00AM Apr 16, 2014Highest Observation: 12.05 ft at 2:00AM Apr 16, 2014Forecast: 12.2 ft 7:00AM Apr 16, 2014Forecast: 12.4 ft 1:00PM Apr 16, 2014Forecast: 12.6 ft 7:00PM Apr 16, 2014Forecast: 12.8 ft 1:00AM Apr 17, 2014Forecast: 13.1 ft 7:00AM Apr 17, 2014Forecast: 13.3 ft 1:00PM Apr 17, 2014Forecast: 13.5 ft 7:00PM Apr 17, 2014Forecast: 13.7 ft 1:00AM Apr 18, 2014Forecast: 13.9 ft 7:00AM Apr 18, 2014Forecast: 14 ft 1:00PM Apr 18, 2014Forecast: 14.1 ft 7:00PM Apr 18, 2014Forecast: 14.3 ft 1:00AM Apr 19, 2014Forecast: 14.4 ft 7:00AM Apr 19, 2014Forecast: 14.5 ft 1:00PM Apr 19, 2014Forecast: 14.6 ft 7:00PM Apr 19, 2014Highest Forecast: 14.7 ft 1:00AM Apr 20, 2014Highest Forecast: 14.7 ft 7:00AM Apr 20, 2014Highest Forecast: 14.7 ft 1:00PM Apr 20, 2014Highest Forecast: 14.7 ft 7:00PM Apr 20, 2014Highest Forecast: 14.7 ft 1:00AM Apr 21, 2014Highest Forecast: 14.7 ft 7:00AM Apr 21, 2014Highest Forecast: 14.7 ft 1:00PM Apr 21, 2014Highest Forecast: 14.7 ft 7:00PM Apr 21, 2014Forecast: 14.6 ft 1:00AM Apr 22, 2014Forecast: 14.6 ft 7:00AM Apr 22, 2014Forecast: 14.6 ft 1:00PM Apr 22, 2014Forecast: 14.5 ft 7:00PM Apr 22, 2014U.S. Army Corps of EngineersDLDI4(plotting HTIRZ) Graph Created (2:16AM Apr 16, 2014)ObservedForecast (issued 12:10AM Apr 16)Latest observed value: 12.05 ft at 2:00 AM CDT 16-Apr-2014. Flood Stage is 16 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
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Datum: Not Available
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 Mississippi River at Dubuque (LD11) are issued routinely year-round.

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Upstream Gauge - at Guttenberg Upstream Gauge Downstream Gauge Downstream Gauge - at Dubuque (Railroad Bridge)
Flood Categories (in feet)
Major Flood Stage:20.5
Moderate Flood Stage:17
Flood Stage:16
Action Stage:15

Historical Crests
(1) 25.69 ft on 04/26/1965
(2) 23.91 ft on 04/21/2001
(3) 22.32 ft on 07/01/1993
(4) 21.74 ft on 04/23/1969
(5) 21.64 ft on 04/22/1951
(6) 21.57 ft on 04/25/1952
(7) 21.32 ft on 05/06/1975
(8) 21.24 ft on 04/19/2011
(9) 21.22 ft on 04/16/1997
(10) 20.45 ft on 04/11/1967
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Low Water Records
Currently none available.
Zoom Level: 16
Gauge Location
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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22 Water affects Volunteer Drive leading to Lock and Dam 11.
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Latitude: 42.538611° N, Longitude: 90.646389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 16 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 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 588.2 ft 604.2 ft  

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
Quad Cities Weather Forecast Office
9050 Harrison Street
Davenport, IA 52806-7326
(563) 386-3976
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Page last modified: 8-Apr-2014 7:35 AM
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