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Stream Elevation Sensor 519
520 White Oak Bayou @ Heights Boulevard
Sensor ID 519
Sensor Type USGS Radar
Installed 3/27/1984
Flooding Likely 32.00'
Flooding Possible 29.00'
Bottom of Stream 6.60'
Tip of Orifice 42.67'
Measuring Plate 43.63'
External Link USGS
Water Level Forecast Information NWS
Benchmark 39.93'
RM 050025 stamped TXDOT located on the upstream sidewalk of south bound lanes at south end bridge, 1988 NAVD, 2001 adjustment. 78 to 01 Adjustment -1.1'
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 519 is 7.83'
Reading on 11/4/2025 5:24 AM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
51911/4/2025 5:24 AM7.83'
51911/4/2025 2:42 AM7.89'
51911/3/2025 10:48 PM7.95'
51911/3/2025 10:42 PM7.94'
51911/3/2025 8:28 PM7.84'
51911/3/2025 6:42 PM7.96'
51911/3/2025 2:42 PM7.94'
51911/3/2025 10:42 AM7.87'
51911/3/2025 6:42 AM7.92'
51911/3/2025 4:34 AM7.95'
51911/3/2025 2:42 AM8.00'
51911/3/2025 1:04 AM8.05'
51911/2/2025 10:42 PM7.94'
51911/2/2025 8:18 PM7.93'
51911/2/2025 6:42 PM8.03'
51911/2/2025 6:24 PM8.04'
51911/2/2025 4:12 PM8.14'
51911/2/2025 2:42 PM8.03'
51911/2/2025 2:00 PM8.04'
51911/2/2025 10:42 AM7.96'
51911/2/2025 7:42 AM7.94'
51911/2/2025 6:42 AM7.97'
Flood Frequency
Elevation
10% (10-year)35.70'
2% (50-year)40.40'
1% (100-year)42.80'
.2% (500-year)46.80'
Historical Storm
Date
Event
Elevation
3/20/1972 25.10'
8/31/1981 24.00'
5/14/1982 23.50'
8/18/1983Alicia23.30'
3/4/1992 40.80'
3/12/1997 30.30'
9/11/1998Frances38.20'
6/9/2001Allison #246.10'
10/29/2002 34.50'
11/17/2003 36.20'
6/19/2006 31.60'
10/16/2006 31.60'
9/13/2008 36.30'
10/25/2015 33.90'
4/18/2016 38.80'
8/27/2017Harvey45.60'
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.