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Stream Elevation Sensor 443
D100_440 Brays Bayou @ Rice Avenue
Key Map 531U
Sensor ID 443
Sensor Type Bubbler
Installed 8/10/1984
Top of Bank (TOB) 51.30'
Bottom of Stream 25.97'
Tip of Orifice 27.45'
Measuring Plate 54.84'
Benchmark 53.81'
RM 040160 stamped D100 BM 20 located on the downstream sidewalk of northbound bridge at stream centerline, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -1.99
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 443 is 27.98'
Reading on 11/17/2018 4:53 PM
Export to Excel
24 Hours
Sensor
Reading Date
Elevation
44311/17/2018 4:53 PM27.98'
44311/17/2018 12:52 PM27.92'
44311/17/2018 8:51 AM27.98'
44311/17/2018 6:58 AM28.02'
44311/17/2018 4:50 AM28.12'
44311/17/2018 12:49 AM28.13'
44311/16/2018 8:48 PM28.14'
Flood Frequency
Elevation
10% (10-year)50.80'
2% (50-year)52.90'
1% (100-year)54.30'
.2% (500-year)55.70'
Historical Storm
Date
Event
Elevation
6/18/1973 49.11'
8/18/1983Alicia47.41'
9/19/1983 52.51'
8/1/1989Chantal49.01'
10/18/1994 51.41'
9/11/1998Frances47.51'
6/9/2001Allison50.41'
11/17/2003 51.01'
9/13/2008Ike47.90'
4/28/2009 47.60'
1/9/2012 50.30'
5/26/2015 52.90'
4/18/2016 51.70'
1/18/2017 49.80'
8/27/2017Harvey54.10'
High water mark elevations are approximate.
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