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Mississippi River at St. Paul, MN (STPM5)


Data Type




Inundation Levels
NAVD88 Stage

716.8*33.0*
715.8*32.0*
714.8*31.0*
713.8*30.0*
712.8*29.0*
711.8*28.0*
710.8*27.0*
Record Crest: 26.01 ft
709.826.0
708.825.0
707.824.0
706.823.0
705.822.0
704.821.0
703.820.0
702.819.0
701.818.0
700.817.0

Major Flooding Begins

699.816.0
698.815.0

Moderate Flooding Begins

697.814.0

Minor Flooding Begins

696.813.0
695.812.0
694.811.0
693.810.0

Near Flooding Begins

692.89.0
* = Extended rating
Weather Forecast Office Twin Cities/Chanhassen, MN North Central River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping
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Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

Current Stage:
4.4 ft at 11/19/2017 21:00:00 UTC
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
What is UTC time? Map Help

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.

Gauge Information Collapse

Map Overlays

Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 14
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 26.01 ft on 04/16/1965
(2) 24.52 ft on 04/15/1969
(3) 23.76 ft on 04/18/2001
(4) 23.20 ft on 04/30/2001
(5) 22.37 ft on 04/13/1997
(6) 22.02 ft on 04/16/1952
(7) 20.13 ft on 06/26/2014
(8) 19.15 ft on 06/26/1993
(9) 19.02 ft on 03/29/2011
(10) 18.79 ft on 04/16/1951
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.13 ft on 06/26/2014
(2) 14.05 ft on 07/01/2013
(3) 13.09 ft on 06/03/2012 (P)
(4) 18.71 ft on 04/10/2011
(5) 19.02 ft on 03/29/2011
(6) 16.70 ft on 10/02/2010
(7) 18.38 ft on 03/24/2010
(8) 12.52 ft on 03/31/2009
(9) 9.80 ft on 05/11/2008
(10) 10.06 ft on 04/07/2007
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.65 ft on 01/20/1976

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Site-specific information:
The flooding conditions depicted in this map reflect the ground elevation from topographic data collected in November 2011. Any changes in ground elevation post November 2011 will change the depicted flood conditions.

Levee embankments and flood walls are present in the City of St. Paul. Levees/floodwalls are depicted as red lines on the map, and the leveed areas protected by the levee/floodwalls are depicted as yellow polygons. The structures included in the model within the mapping reach are the St. Paul/USACE Levee, Xcel Levee, St. Paul Holman Field Airport Floodwall, and Pig’s Eye Waste Water Treatment Facility Levee. These protection systems include both permanent structures as well as temporary structures implemented with each flood event. These inundation maps were developed with the assumption that these temporary structures were constructed. Additional protection in other areas is also typically constructed by the state and/or individual businesses in preparation for a flood. This additional protection is not included in the hydraulic modeling or display of the flood-inundation maps.

These maps also assumed that areas behind the levees/floodwalls remained dry until these flood control structures were overtopped. These maps did not account for seepage or potential structural problems that may occur prior to or after water levels rise above the top of the levee or floodwall.

In addition, the maps do not account for ground water seepage, ponding of water due to movement through the soil layers, or flooding due to localized heavy rainfall and snow melt. The intent of these maps is to show flooding as a result of rises on the Mississippi River.

The maps will show bridges as inundated once the water hits the lowest point of the bridge deck. However, the bridge owner will determine when the bridges will be closed. Due to other safety concerns, they may close the bridges prior to the maps showing the bridges being impacted.

The stream gage at this location has been recently relocated from Smith Ave to Roberts St. When the gage was re-installed at the Roberts St location, due diligence was performed to ensure the stage level continuity. The impact stages & gage record are valid and consistent for both the Smith Ave and Roberts St locations.

Any building flooding and associated depth of flooding shown is representative of flooding at the adjacent grade elevation of the structure. Depths should be carefully evaluated on a case-by-case basis, relative to the adjacent grade elevation. It should not be assumed that flooding overtops the roof of the structure, however, the ground around the building and lower levels of the building may be inundated.

For further information about this study, see the USGS report at: http://pubs.usgs.gov/sir/2014/5079/

Extended rating:
The USGS has developed a rating curve, or relationship between stage and streamflow, for stages and streamflows up to the 1965 flood of record. Above the level of the 1965 flood of record, the rating curve was extrapolated based on hydraulic computations by the USACE. There is additional uncertainty in the flood forecasts and flood-inundation maps at these unprecedented streamflows.

Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
31 Top of Right Bank Levee in St Paul across from the city side.
29 **Updated level from the USACE - Top of Right Bank Levee in the city of South St Paul
18 Warner Road may become impassable due to high water.
17.5 Harriet Island begins to become submerged.
14 Portions of the Lilydale park area begin to experience flooding.
13.3 Water begins to encroach on Water St.
Photos
(1) Looking Upriver
(2) Looking Downriver
(3) Smith Ave Bridge
(4) Smith Ave Bridge 2
Other Data Sources Collapse
Additional Information Collapse
  • Note: The historical crests were adjusted for events from 2001 to 2013 due to the temporary move of the gage to Smith Ave; they match what would have been read from the current location.
  • Gauge maintained by the USGS.
  • How low could the river go?
  • Flow data is not reliable below 6 ft due to backwater from Lock and Dam #2.
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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.
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    Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.