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White Oak Bayou at Houston, TX (HGTT2)


Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 51.5 ft
45.7 45.7
44.7 44.7
43.7 43.7
42.7 42.7
41.7 41.7
40.7 40.7
39.7 39.7
38.7 38.7
37.7 37.7
36.7 36.7

Major Flooding Begins

35.7 35.7
34.7 34.7
33.7 33.7

Moderate Flooding Begins

32.7 32.7

Minor Flooding Begins

31.7 31.7
30.7 30.7
29.7 29.7

Near Flooding Begins

28.7 28.7
27.7 27.7
26.7 26.7
25.7 25.7
24.7 24.7
23.7 23.7
22.7 22.7
21.7 21.7
* = Extended rating
Weather Forecast Office Houston/Galveston, TX West Gulf River Forecast Center

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Current Stage:
7.6 ft at 04/17/2014 14:45:00 UTC
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Inundation Legend Inundation Legend
USGS Gauge Location 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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Flood Categories (in feet)
Major Flood Stage:36
Moderate Flood Stage:33.5
Flood Stage:32
Action Stage:29

Historical Crests
(1) 51.50 ft on 12/09/1935
(2) 50.43 ft on 03/04/1992
(3) 47.06 ft on 09/11/1998
(4) 47.00 ft on 05/31/1929
(5) 46.00 ft on 09/14/2008
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Low Water Records

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.

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40.29 At levels above 40.3 feet major lowland flooding continues as the Heights Boulevard bridge is inundated.
38.5 At levels above 38.5 feet major lowland flooding continues as the I-45 main lanes north of I-10 are inundated.
36 At levels above 36 feet major lowland flooding begins as apartments along White Oak Drive begin flooding. The I-45 south bound ramp to I-10 West is under 2.5 feet of water and the I-10 east bound feeder road west of Studemont is inundated. The I-45 main lanes north of I-10 are close to being flooded.
33.5 At levels above 33.5 feet moderate lowland flooding begins as the south bound ramp to I-10 West floods.
29 At levels above 29 feet minor lowland flooding begins as water escapes the main channel and floods White Oak Drive between Taylor Street and I-10.
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Page last modified: 29-Mar-2014 4:34 AM
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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.