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Colorado River (TX) near Smithville, TX (SMIT2)

Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 47.4 ft
312.342.0
311.341.0
310.340.0
309.339.0
308.338.0
307.337.0
306.336.0
305.335.0
304.334.0
303.333.0
302.332.0
301.331.0
300.330.0
299.329.0
Major Flooding Begins

298.328.0
297.327.0
296.326.0
295.325.0
294.324.0
Moderate Flooding Begins


Minor Flooding Begins


Near Flooding Begins


Below Flooding Begins

* = Extended rating
Weather Forecast Office Austin/San Antonio, TX West Gulf 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:
1.2 ft at 04/18/2024 05:10:00 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.

Gauge Information Collapse

Map Overlays
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 23
Flood Stage: 20
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 47.40 ft on 12/04/1913
(2) 42.50 ft on 06/16/1936
(3) 36.02 ft on 07/27/1938
(4) 34.75 ft on 10/18/1998
(5) 31.91 ft on 08/28/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 31.91 ft on 08/28/2017
(2) 30.09 ft on 05/28/2016
(3) 30.02 ft on 11/01/2015 (P)
(4) 29.87 ft on 05/27/2015
(5) 27.85 ft on 11/23/2004
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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.

Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.
Flood Impacts Collapse
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34 Several tens of homes flood above Smithville in Hidden Valley Estates, Doty River Estates, and Pecan Shores Estates, some to the roofs. Homes flood also below Smithville near Kirtley. Flow reaches near the lowest businesses in Smithville.
30 Major flooding inundates homes five miles upstream in Hidden Valley Estates, three miles upstream in Doty River Estates, one mile upstream in Pecan Shores Estates just above Smithville and in Kirtley below Smithville.
28 Major flooding inundates homes five miles upstream in Hidden Valley Estates, three miles upstream in Doty River Estates, one mile upstream in Pecan Shores Estates just above Smithville and in Kirtley below Smithville.
25 Flow threatens lowest residences five miles upstream at Hidden Valley Estates and three miles upstream at Doty River Estates. Roads and bridges near the river flood and are dangerous to motorists.
23 Moderate lowland flooding extends well into the flood plain inundating lowest homes and bridges below Bastrop to above Columbus.
20 Minor lowland flooding reaches secondary roads and low water crossings near the river
14 Overbank conditions with water covering low areas of the flood plain with no significant impact.
10 Flow exceeds lowest sections of the banks.
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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.