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Stream Elevation Sensor 138
135 Clear Creek @ FM 2351
Sensor ID 138
Sensor Type Bubbler
Installed 2/25/2002
Flooding Likely 18.10'
Flooding Possible 15.10'
Bottom of Stream -2.10'
Tip of Orifice 0.60'
Measuring Plate 27.54'
Benchmark 26.66'
RM 010110 stamped RM010110 located on the downstream sidewalk at north end bridge, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -0.5'
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 138 is 1.68'
Reading on 5/11/2025 9:30 AM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
1385/11/2025 9:30 AM1.68'
1385/11/2025 8:22 AM1.58'
1385/11/2025 7:30 AM1.48'
1385/11/2025 7:08 AM1.41'
1385/11/2025 6:54 AM1.38'
1385/11/2025 4:58 AM1.28'
1385/11/2025 3:44 AM1.38'
1385/11/2025 3:08 AM1.44'
1385/11/2025 12:04 AM1.48'
1385/10/2025 11:10 PM1.58'
1385/10/2025 11:08 PM1.60'
1385/10/2025 10:14 PM1.69'
1385/10/2025 7:54 PM1.80'
1385/10/2025 7:08 PM1.85'
1385/10/2025 5:10 PM1.91'
1385/10/2025 3:48 PM2.01'
1385/10/2025 3:08 PM2.08'
1385/10/2025 2:46 PM2.12'
1385/10/2025 2:06 PM2.23'
1385/10/2025 11:18 AM2.34'
1385/10/2025 11:08 AM2.32'
1385/10/2025 10:24 AM2.24'
1385/10/2025 9:48 AM2.13'
1385/10/2025 8:38 AM2.02'
1385/10/2025 7:08 AM1.94'
1385/10/2025 6:40 AM1.92'
1385/10/2025 3:48 AM1.82'
1385/10/2025 3:08 AM1.88'
1385/10/2025 2:24 AM1.93'
1385/10/2025 12:32 AM2.04'
1385/9/2025 11:08 PM2.07'
1385/9/2025 9:14 PM2.14'
1385/9/2025 7:08 PM2.26'
1385/9/2025 6:58 PM2.24'
1385/9/2025 3:26 PM2.13'
1385/9/2025 3:08 PM2.11'
1385/9/2025 2:38 PM2.02'
1385/9/2025 12:22 PM1.92'
1385/9/2025 11:08 AM2.07'
1385/9/2025 10:44 AM2.03'
1385/9/2025 10:14 AM1.93'
1385/9/2025 10:00 AM1.83'
Flood Frequency
Elevation
10% (10-year)22.40'
2% (50-year)25.00'
1% (100-year)25.90'
.2% (500-year)27.80'
Historical Storm
Date
Event
Elevation
6/20/1973 23.80'
7/25/1979Claudette21.30'
9/20/1979David24.30'
5/3/1981 21.50'
8/18/1983Alicia20.70'
8/1/1989Chantal23.30'
10/18/1994 23.20'
6/5/2001Allison #222.10'
6/9/2001Allison #224.90'
10/16/2006 20.00'
8/16/2007Erin16.40'
9/13/2008Ike18.60'
4/18/2009 20.60'
8/27/2017Harvey27.70'
9/21/2020Beta22.40'
7/8/2024Beryl18.60'
High water mark elevations are approximate.
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