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Stream Elevation Sensor 1674
1675 Halls Bayou @ Tidwell Road
Sensor ID 1674
Sensor Type Bubbler
Installed 1/3/2002
Flooding Likely 39.90'
Flooding Possible 36.90'
Bottom of Stream 18.00'
Tip of Orifice 18.21'
Measuring Plate 50.09'
Benchmark 46.85'
150289 Stamped 150289 EST 2012 located on the downstream sidewalk of east bound lanes at east end of bridge, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -0.9'
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 1674 is 19.45'
Reading on 11/7/2024 10:51 PM
Export to Excel
24 Hours
Sensor
Reading Date
Elevation
167411/7/2024 10:51 PM19.45'
167411/7/2024 9:15 PM19.45'
167411/7/2024 6:51 PM19.47'
167411/7/2024 2:51 PM19.51'
167411/7/2024 10:51 AM19.55'
167411/7/2024 10:09 AM19.55'
167411/7/2024 6:51 AM19.58'
167411/7/2024 2:51 AM19.62'
Flood Frequency
Elevation
10% (10-year)39.20'
2% (50-year)41.60'
1% (100-year)42.30'
.2% (500-year)44.40'
Historical Storm
Date
Event
Elevation
12/14/2005 34.00'
6/19/2006 36.20'
10/16/2006 37.30'
9/13/2008Ike39.90'
10/31/2015 37.50'
4/18/2016 32.90'
8/8/2017 30.40'
8/27/2017Harvey45.40'
9/19/2019Imelda41.10'
High water mark elevations are approximate.
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