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Stream Elevation Sensor 438
D112_435 Willow Water Hole @ Willowbend Boulevard
Key Map 531Y
Sensor ID 438
Sensor Type Pressure Transducer
Installed 1/24/2002
Top of Bank (TOB) 51.10'
Bottom of Stream 34.39'
Tip of Orifice 34.70'
Measuring Plate 51.68'
Benchmark 51.69'
RM 040350 stamped D112 0350D located on the downstream sidewalk of west bound lanes at stream centerline, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -2.03
As of July 1, 2007, the elevation datum was changed from 1929 NGVD, 1978 adjustment to the 1988 NAVD, 2001 adjustment.

The Stream Elevation  chart showing Stream Elevation Left series.
Cross Section
Stream Elevation for sensor 438 is 34.97'
Reading on 9/20/2017 9:16 PM
Export to Excel
24 Hours
Sensor
Reading Date
Elevation
4389/20/2017 9:16 PM34.97'
4389/20/2017 8:40 PM35.08'
4389/20/2017 8:16 PM35.18'
4389/20/2017 7:58 PM35.29'
4389/20/2017 7:46 PM35.40'
4389/20/2017 7:38 PM35.51'
4389/20/2017 7:30 PM35.62'
4389/20/2017 7:22 PM35.76'
4389/20/2017 7:16 PM35.88'
4389/20/2017 7:10 PM36.02'
4389/20/2017 7:06 PM36.14'
4389/20/2017 7:02 PM36.26'
4389/20/2017 6:58 PM36.40'
4389/20/2017 6:56 PM36.51'
4389/20/2017 6:52 PM36.66'
4389/20/2017 6:50 PM36.77'
4389/20/2017 6:48 PM36.87'
4389/20/2017 6:44 PM37.06'
4389/20/2017 6:40 PM37.24'
4389/20/2017 6:28 PM37.39'
4389/20/2017 6:24 PM37.27'
4389/20/2017 6:22 PM37.17'
4389/20/2017 6:20 PM37.01'
4389/20/2017 6:18 PM36.85'
4389/20/2017 6:16 PM36.60'
4389/20/2017 6:14 PM36.19'
4389/20/2017 6:12 PM35.86'
4389/20/2017 6:10 PM35.60'
4389/20/2017 6:08 PM35.42'
4389/20/2017 6:06 PM35.16'
4389/20/2017 6:04 PM35.04'
4389/20/2017 5:58 PM34.84'
4389/20/2017 2:24 PM34.70'
4389/20/2017 10:24 AM34.73'
4389/20/2017 6:24 AM34.72'
4389/20/2017 2:24 AM34.74'
4389/19/2017 10:24 PM34.76'
Flood Frequency
Elevation
10% (10-year)47.20'
2% (50-year)49.80'
1% (100-year)50.70'
.2% (500-year)52.90'
Historical Storm
Date
Event
Elevation
9/13/2008Ike47.80'
4/28/2009 43.20'
1/9/2012 49.10'
4/27/2013 48.10'
5/26/2015 51.70'
4/18/2016 50.70'
1/18/2017 48.80'
High water mark elevations are approximate.
The Flood Warning System interactive map and website are for general information and educational purposes only. Their purpose is to provide information collected at gage stations, which monitor rainfall and water levels of streams and bayous as well as other weather information in the Harris County region. Use and interpretation of this data and information is the responsibility of the user. Neither the Harris County Flood Control District nor Harris County represents the data as 100 percent accurate. You should follow directions provided by emergency management officials when making decisions during flooding or other weather-related events.