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Stream Elevation Sensor 309
310 Berry Bayou @ Nevada Avenue
Sensor ID 309
Sensor Type USGS Bubbler
Installed 1/15/1999
Flooding Likely 29.00'
Flooding Possible 26.00'
Bottom of Stream 15.00'
Tip of Orifice 15.03'
Measuring Plate 30.66'
External Link USGS
Benchmark 30.65'
RM 030248 stamped C106 BM11 located on the downstream sidewalk at stream centerline. 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.

The Stream Elevation chart showing Stream Elevation Left series.
Cross Section
Stream Elevation for sensor 309 is 15.47'
Reading on 7/15/2025 3:22 PM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
3097/15/2025 3:22 PM15.47'
3097/15/2025 11:22 AM15.46'
3097/15/2025 7:22 AM15.44'
3097/15/2025 3:22 AM15.47'
3097/14/2025 11:22 PM15.54'
3097/14/2025 7:22 PM15.51'
3097/14/2025 3:22 PM15.49'
3097/14/2025 11:22 AM15.44'
3097/14/2025 7:22 AM15.43'
3097/14/2025 3:22 AM15.44'
3097/13/2025 11:22 PM15.48'
3097/13/2025 7:22 PM15.47'
Flood Frequency
Elevation
10% (10-year)27.40'
2% (50-year)29.80'
1% (100-year)30.90'
.2% (500-year)31.90'
Historical Storm
Date
Event
Elevation
6/9/2001Allison #225.00'
6/16/2006 26.90'
8/16/2007Erin25.00'
9/13/2008Ike27.40'
4/18/2009 25.00'
8/27/2017Harvey31.40'
High water mark elevations are approximate.
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