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Stream Elevation Sensor 1843
1840 Gum Gully @ Diamond Head Boulevard
Key Map 419E
Sensor ID 1843
Sensor Type Bubbler
Installed 4/1/1986
Flooding Likely 25.10'
Flooding Possible 22.10'
Bottom of Stream 5.30'
Tip of Orifice 6.57'
Measuring Plate 35.05'
Benchmark 35.00'
RM 170035 stamped R102 BM01 located on the downstream sidewalk at stream centerline, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -0.20'
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 1843 is 6.55'
Reading on 7/21/2019 7:57 AM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
18437/21/2019 7:57 AM6.55'
18437/21/2019 3:57 AM6.54'
18437/20/2019 11:57 PM6.56'
18437/20/2019 7:57 PM6.57'
18437/20/2019 3:57 PM6.58'
18437/20/2019 11:57 AM6.58'
18437/20/2019 7:57 AM6.58'
18437/20/2019 3:57 AM6.59'
18437/19/2019 11:57 PM6.63'
18437/19/2019 7:57 PM6.67'
18437/19/2019 3:57 PM6.62'
18437/19/2019 11:57 AM6.61'
Flood Frequency
Elevation
10% (10-year)23.58'
2% (50-year)25.11'
1% (100-year)25.78'
.2% (500-year)27.57'
Historical Storm
Date
Event
Elevation
10/18/1994 29.90'
10/31/2015 25.50'
5/27/2016 22.30'
8/27/2017Harvey34.00'
High water mark elevations are approximate.
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