RM 070155 stamped G103 #0750 located on top of headwall at the west end of dam 25 feet north of dam walkway just before chain link gate. 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -0.4'
As of July 1, 2007, the elevation datum was changed from 1929 NGVD, 1978 adjustment to the 1988 NAVD, 2001 adjustment.
Cross Section
Lake Houston Elevation for sensor 749
is 42.37'
Reading on 4/16/2025 11:02 PM
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Houston","FLLevelIndicator":0.0,"FL_Label":"Flooding Likely","FL_Abbreviation":""}
true
161
Export to Excel
2 Days
Sensor
Reading Date
Elevation
749
4/16/2025 11:02 PM
42.37'
749
4/16/2025 8:34 PM
42.40'
749
4/16/2025 7:02 PM
42.34'
749
4/16/2025 3:12 PM
42.30'
749
4/16/2025 3:02 PM
42.33'
749
4/16/2025 11:02 AM
42.36'
749
4/16/2025 7:02 AM
42.40'
749
4/16/2025 3:02 AM
42.42'
749
4/15/2025 11:02 PM
42.41'
749
4/15/2025 7:02 PM
42.41'
749
4/15/2025 3:02 PM
42.40'
749
4/15/2025 11:02 AM
42.44'
749
4/15/2025 7:02 AM
42.45'
749
4/15/2025 3:02 AM
42.42'
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Flood Frequency
Elevation
10% (10-year)
45.40'
2% (50-year)
48.80'
1% (100-year)
49.90'
.2% (500-year)
52.00'
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Historical Storm
Date
Event
Elevation
5/4/1981
46.40'
6/5/1981
46.60'
5/20/1983
48.10'
8/18/1983
Alicia
47.20'
5/18/1989
49.20'
6/26/1989
Allison #1
47.50'
3/4/1992
47.10'
10/18/1994
52.40'
9/13/2008
Ike
44.50'
4/18/2016
46.20'
5/27/2016
47.80'
8/27/2017
Harvey
53.10'
9/19/2019
Imelda
48.20'
5/2/2024
48.40'
High water mark elevations are approximate.
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Showing rainfall totals from 4/15/2025 1:00 AM to 4/17/2025 12:46 AM CDT
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