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Ouachita River at Monroe, LA (MLUL1)


Data Type




Inundation Levels
NAVD88 Stage

87.2* 56.4*
86.2* 55.4*
85.2* 54.4*
84.2* 53.4*
83.2* 52.4*
82.2* 51.4*
Record Crest: 50.81 ft
81.2 50.4
80.2 49.4
79.2 48.4
78.2 47.4
77.2 46.4
76.2 45.4

Major Flooding Begins

75.2 44.4
74.2 43.4

Moderate Flooding Begins

73.2 42.4
72.2 41.4
71.2 40.4
* = Extended rating
Weather Forecast Office Shreveport, LA Lower Mississippi River Forecast Center
Hydrograph River at a Glance Download Inundation
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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:
40.0 ft at 05/06/2016 08:00:00 UTC
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
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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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Map Overlays

Flood Categories (in feet)
Major Flood Stage: 45
Moderate Flood Stage: 43
Flood Stage: 40
Action Stage: 35.5
Low Stage (in feet): 19

Historic Crests
(1) 50.81 ft on 05/22/1958
(2) 50.78 ft on 04/15/1945
(3) 50.48 ft on 05/04/1991
(4) 50.10 ft on 02/02/1932
(5) 49.20 ft on 05/06/1974
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 40.06 ft on 04/03/2015
(2) 43.10 ft on 01/10/2010
(3) 47.80 ft on 11/10/2009
(4) 43.80 ft on 05/25/2009
(5) 40.90 ft on 01/01/2002
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.44 ft on 09/13/1909
(2) -1.14 ft on 11/01/1908
(3) 12.46 ft on 01/03/1944

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.

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54.4 Catastrophic flooding occurrs with water overtopping numerous levees in the Monroe area. High water laps at the bottom of the U.S. Highway 80 bridge.
49 Major flooding between the levees occurs and the floodwall gap must be closed on the East Monroe side of the river.
47.5 Water floods the underclearance of the Desiard Street bridge. Major lowland flooding occurs between the levee systems.
45 The Prairon Bayou recreational area floods and closes. Lowland flooding becomes extensive at this stage between levees.
43 The Bawconville and Moon Lake recreational areas flood and close.
40 Minor backwater flooding affects small bayous that drain into the Ouachita River along with minor lowland flooding between levee systems.
36 Both the Forsythe and Lazarre recreational areas flood and close with very minor lowland flooding immediately next to the river.
34 The Forsythe Recreational Area closes, otherwise no other flooding occurs in the Monroe area until a stage of 36 feet.
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Page last modified: 16-Nov-2015 1:25 PM
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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.