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Stream Elevation Sensor 823
820 Hunting Bayou @ I-10
Sensor ID 823
Sensor Type Radar
Installed 1/1/1993
Flooding Likely 19.50'
Flooding Possible 16.50'
Bottom of Stream 2.30'
Tip of Orifice 29.76'
Measuring Plate 30.02'
Benchmark 27.21'
RM 080035 stamped 080035 RESET 2012 located on the downstream sidewalk of the east bound feeder Rd at east end bridge, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -0.2'
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 823 is 3.55'
Reading on 4/23/2025 11:05 PM
Export to Excel
1 Hour
Sensor
Reading Date
Elevation
8234/23/2025 11:05 PM3.55'
Flood Frequency
Elevation
10% (10-year)20.50'
2% (50-year)22.30'
1% (100-year)24.30'
.2% (500-year)26.70'
Historical Storm
Date
Event
Elevation
3/4/1992 20.50'
9/11/1998Frances21.00'
6/5/2001Allison #223.00'
6/9/2001Allison #228.30'
6/19/2006 21.40'
10/16/2006 16.20'
8/16/2007Erin21.50'
9/13/2008Ike23.50'
5/26/2015 20.10'
10/25/2015 20.70'
10/31/2015 24.30'
1/18/2017 19.40'
8/27/2017Harvey27.00'
9/19/2019Imelda22.20'
High water mark elevations are approximate.
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