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Stream Elevation Sensor 223
220 Armand Bayou @ Genoa-Red Bluff Road
Sensor ID 223
Sensor Type Radar
Installed 8/8/1984
Flooding Likely 15.00'
Flooding Possible 12.00'
Bottom of Stream -2.00'
Tip of Orifice 23.09'
Benchmark 23.14'
RM 020033 stamped RM 020033R located on the downstream sidewalk at south end. 78 TO 01 adjustment -0.2'
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 223 is 0.72'
Reading on 12/31/2025 12:01 AM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
22312/31/2025 12:01 AM0.72'
22312/30/2025 10:55 PM0.61'
22312/30/2025 10:27 PM0.51'
22312/30/2025 10:17 PM0.47'
22312/30/2025 10:01 PM0.40'
22312/30/2025 9:35 PM0.29'
22312/30/2025 6:17 PM0.18'
22312/30/2025 2:17 PM0.21'
22312/30/2025 10:17 AM0.20'
22312/30/2025 6:17 AM0.19'
22312/30/2025 2:17 AM0.16'
22312/29/2025 10:17 PM0.15'
22312/29/2025 6:17 PM0.15'
22312/29/2025 3:07 PM0.18'
22312/29/2025 2:17 PM0.23'
22312/29/2025 12:19 PM0.29'
22312/29/2025 10:17 AM0.38'
22312/29/2025 9:23 AM0.40'
22312/29/2025 8:15 AM0.52'
22312/29/2025 7:11 AM0.62'
22312/29/2025 6:37 AM0.73'
22312/29/2025 6:17 AM0.78'
22312/29/2025 5:55 AM0.84'
22312/29/2025 4:05 AM0.95'
22312/29/2025 2:17 AM1.04'
22312/29/2025 1:51 AM1.06'
Flood Frequency
Elevation
10% (10-year)16.40'
2% (50-year)17.30'
1% (100-year)18.40'
.2% (500-year)19.60'
Historical Storm
Date
Event
Elevation
7/25/1979Claudette12.00'
9/20/1979David17.00'
8/1/1989Chantal15.30'
6/9/2001Allison #216.70'
6/19/2006 14.70'
10/16/2006 14.90'
8/16/2007Erin15.80'
9/13/2008Ike16.30'
4/18/2009 15.70'
8/27/2017Harvey19.50'
High water mark elevations are approximate.
The Harris County Flood Control District (HCFCD) provides information via this website as a public service. While HCFCD makes every effort to ensure information is up-to-date, accurate and complete, HCFCD makes no representations, guarantees, or warranties as to the availability, accuracy, completeness, currency or suitability of the information provided via this website. HCFCD specifically disclaims any and all liability for any claims or damages that may result from providing the website or the information it contains. All liability with respect to actions taken or not taken based on the contents of this site is hereby expressly disclaimed.