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Stream Elevation Sensor 128
125 Chigger Creek @ Windsong Lane
Sensor ID 128
Sensor Type Bubbler
Installed 3/4/1999
Flooding Likely 28.00'
Flooding Possible 25.00'
Bottom of Stream 18.60'
Tip of Orifice 18.67'
Measuring Plate 26.37'
Benchmark 26.11'
RM 010096 stamped CHIG 0125 located on the downstream headwall of double box culverts at stream centerline, 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 128 is 18.67'
Reading on 1/31/2025 6:06 AM
Export to Excel
24 Hours
Sensor
Reading Date
Elevation
1281/31/2025 6:06 AM18.67'
1281/31/2025 2:06 AM18.67'
1281/30/2025 10:06 PM18.67'
1281/30/2025 6:06 PM18.68'
1281/30/2025 2:06 PM18.68'
1281/30/2025 10:06 AM18.68'
Flood Frequency
Elevation
10% (10-year)29.60'
2% (50-year)30.60'
1% (100-year)31.00'
.2% (500-year)32.00'
Historical Storm
Date
Event
Elevation
9/13/2008Ike25.90'
4/18/2009 30.30'
8/27/2017Harvey31.80'
9/21/2020Beta27.20'
7/8/2024Beryl29.40'
High water mark elevations are approximate.
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