Harris County Flood Warning System

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Location

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100: 100 Clear Lake 2nd Outlet @ SH 146

105: 105 Marys Creek @ Winding Road

110: 110 Clear Creek @ I-45

115: 115 Cowart Creek @ Baker Road

120: 120 Clear Creek @ FM 528

125: 125 Chigger Creek @ Windsong Lane

130: 130 Clear Creek @ Bay Area Boulevard

135: 135 Clear Creek @ FM 2351

140: 140 Turkey Creek @ FM 1959

145: 145 Clear Creek @ FM 1959

150: 150 Clear Creek @ Country Club Drive

160: 160 Beamer Ditch @ Hughes Road

170: 170 Clear Creek @ Nassau Bay

175: 175 Clear Creek @ Pearland Parkway

180: 180 Clear Creek @ Mykawa Road

190: 190 Clear Creek @ SH 288

200: 200 Taylor Lake @ Nasa Road 1

210: 210 Armand Bayou @ Pasadena Lake (Nasa Road 1)

220: 220 Armand Bayou @ Genoa-Red Bluff Road

230: 230 Big Island Slough @ Fairmont Parkway

240: 240 Little Vince Bayou @ Burke Road

245: 245 Armand Bayou @ Space Center Boulevard

250: 250 Horsepen Bayou @ Bay Area Boulevard

270: 270 Willow Spring Bayou @ Fairmont Parkway

310: 310 Berry Bayou @ Nevada Avenue

320: 320 Berry Bayou @ Forest Oaks Boulevard

340: 340 Sims Bayou @ Telephone Road

360: 360 Sims Bayou @ Martin Luther King Road

370: 370 Sims Bayou @ SH 288

380: 380 Sims Bayou @ Hiram Clarke Rd

400: 400 Harris Gully @ South McGregor Way

405: 405 Brays Bayou @ Martin Luther King Blvd

410: 410 Brays Bayou @ Lawndale Street

420: 420 Brays Bayou @ South Main Street

430: 430 Brays Bayou @ Stella Link Road

435: 435 Willow Water Hole @ Willowbend Boulevard

440: 440 Brays Bayou @ Rice Avenue

445: 445 Willow Water Hole @ Landsdowne Drive

460: 460 Brays Bayou @ Gessner Road

465: 465 Brays Bayou @ Beltway 8

470: 470 Brays Bayou @ Belle Park Drive

475: 475 Brays Bayou @ Bellaire Boulevard

480: 480 Keegans Bayou @ Roark Road

485: 485 Brays Bayou @ SH 6

490: 490 Keegans Bayou @ Keegan Road

495: 495 Keegans Bayou @ Rocky Valley

510: 510 Harris County Flood Control @ Brookhollow

520: 520 White Oak Bayou @ Heights Boulevard

530: 530 White Oak Bayou @ Ella Boulevard

535: 535 White Oak Bayou @ Pinemont Drive

540: 540 White Oak Bayou @ Alabonson Road

545: 545 White Oak Bayou @ Fairbanks North Houston Road

550: 550 White Oak Bayou @ Lakeview Drive

555: 555 White Oak Bayou @ Jones Road

560: 560 Little White Oak Bayou @ Trimble Street

570: 570 Little White Oak Bayou @ Tidwell Road

575: 575 White Oak Bayou @ Tidwell Road

580: 580 Brickhouse Gully @ Costa Rica Road

582: 582 Brickhouse Gully @ Hollister

585: 585 Vogel Creek @ Victory Drive

590: 590 Cole Creek @ Deihl Road

595: 595 Vogel Creek @ Gulf Bank Road

605: 605 Taylor Lake @ Port Road

610: 610 Taylors Bayou @ Shoreacres Boulevard

620: 620 Little Cedar Bayou @ 8th Street

640: 640 Lateral @ Sens Road

650: 650 Patricks Bayou @ East 8th Street

660: 660 Boggy Bayou @ San Augustine Street

710: 710 San Jacinto River @ Rio Villa

720: 720 San Jacinto River @ US 90

740: 740 Lake Houston @ FM 1960

750: 750 Lake Houston Dam Spillway

755: 755 San Jacinto River @ Lake Houston Pkwy

760: 760 San Jacinto River @ US 59

765: 765 San Jacinto River @ SH 99

770: 770 San Jacinto River @ SH 242

780: 780 Caney Creek @ FM 2090

785: 785 Peach Creek @ FM 2090

790: 790 East Fork San Jacinto @ FM 1485

795: 795 East Fork San Jacinto @ FM 2090

796: 796 East Fork San Jacinto @ SH 105

820: 820 Hunting Bayou @ I-10

830: 830 Hunting Bayou @ Loop 610 East

840: 840 Hunting Bayou @ Lockwood Drive

910: 910 Vince Bayou @ Fairmont Parkway

920: 920 Vince Bayou @ West Ellaine Avenue

940: 940 Little Vince Bayou @ Jackson Avenue

1000: 1000 Houston Transtar

1020: 1020 NRG Park

1040: 1040 Spring Creek @ FM 2978

1050: 1050 Spring Creek @ I-45

1052: 1052 Mill Creek @ FM 149

1053: 1053 Dry Creek @ FM 2978

1054: 1054 Mill Creek @ FM 1486

1055: 1055 Bear Branch @ Kuykendahl

1056: 1056 Mill Creek @ FM 1774

1060: 1060 Spring Creek @ Kuykendahl Road

1070: 1070 Spring Creek @ SH 249

1072: 1072 Walnut Creek @ Nichols Sawmill

Last

Reported from

Show Current Conditions

Lake Houston Elevation
Lake Houston Elevation
Rainfall
Rainfall

Lake Houston Elevation Sensor 749
750 Lake Houston Dam Spillway

Sensor ID	749
Sensor Type	USGS Radar
Sensor Position	Lake Houston
Installed	1/3/1997
Top of Spillway	42.40'
Bottom of Lake Houston	28.30'
Tip of Orifice	62.45'
Measuring Plate	63.48'
External Link	USGS
Benchmark	63.61'
RM 070155 stamped G103 #0750 located on top of headwall at the west end of dam 25 feet north of dam walkway just before chain link gate. 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 Lake Houston Elevation chart showing Lake Houston Elevation Left series.

Cross Section

Lake Houston Elevation for sensor 749 is 43.13'

Reading on 4/11/2023 11:30 AM

Export to Excel

24 Hours

Sensor

Reading Date

Elevation


749	4/11/2023 11:30 AM	43.13'
749	4/11/2023 11:16 AM	43.12'
749	4/11/2023 11:00 AM	43.10'
749	4/11/2023 10:46 AM	43.13'
749	4/11/2023 10:30 AM	43.14'
749	4/11/2023 10:16 AM	43.14'
749	4/11/2023 10:00 AM	43.15'
749	4/11/2023 9:46 AM	43.17'
749	4/11/2023 9:30 AM	43.16'
749	4/11/2023 9:16 AM	43.19'
749	4/11/2023 9:02 AM	43.16'
749	4/11/2023 9:00 AM	43.22'
749	4/11/2023 8:46 AM	43.21'
749	4/11/2023 8:30 AM	43.20'
749	4/11/2023 8:16 AM	43.20'
749	4/11/2023 8:00 AM	43.20'
749	4/11/2023 7:46 AM	43.19'
749	4/11/2023 7:30 AM	43.20'
749	4/11/2023 7:16 AM	43.24'
749	4/11/2023 7:00 AM	43.26'
749	4/11/2023 6:46 AM	43.26'
749	4/11/2023 6:30 AM	43.25'
749	4/11/2023 6:16 AM	43.29'
749	4/11/2023 6:00 AM	43.27'
749	4/11/2023 5:46 AM	43.24'
749	4/11/2023 5:30 AM	43.31'
749	4/11/2023 5:16 AM	43.29'
749	4/11/2023 5:00 AM	43.28'
749	4/11/2023 4:46 AM	43.31'
749	4/11/2023 4:30 AM	43.33'
749	4/11/2023 4:16 AM	43.33'
749	4/11/2023 4:00 AM	43.33'
749	4/11/2023 3:46 AM	43.34'
749	4/11/2023 3:30 AM	43.33'
749	4/11/2023 3:16 AM	43.34'
749	4/11/2023 3:00 AM	43.36'
749	4/11/2023 2:46 AM	43.37'
749	4/11/2023 2:30 AM	43.37'
749	4/11/2023 2:16 AM	43.39'
749	4/11/2023 2:00 AM	43.38'
749	4/11/2023 1:46 AM	43.40'
749	4/11/2023 1:30 AM	43.40'
749	4/11/2023 1:16 AM	43.39'
749	4/11/2023 1:00 AM	43.41'
749	4/11/2023 12:46 AM	43.40'
749	4/11/2023 12:36 AM	43.39'
749	4/11/2023 12:30 AM	43.42'
749	4/11/2023 12:16 AM	43.41'
749	4/11/2023 12:00 AM	43.44'
749	4/10/2023 11:46 PM	43.47'
749	4/10/2023 11:30 PM	43.47'
749	4/10/2023 11:16 PM	43.44'
749	4/10/2023 11:00 PM	43.46'
749	4/10/2023 10:46 PM	43.43'
749	4/10/2023 10:30 PM	43.45'
749	4/10/2023 10:16 PM	43.48'
749	4/10/2023 10:00 PM	43.46'
749	4/10/2023 9:46 PM	43.47'
749	4/10/2023 9:30 PM	43.47'
749	4/10/2023 9:16 PM	43.48'
749	4/10/2023 9:00 PM	43.47'
749	4/10/2023 8:46 PM	43.50'
749	4/10/2023 8:30 PM	43.53'
749	4/10/2023 8:16 PM	43.50'
749	4/10/2023 8:00 PM	43.52'
749	4/10/2023 7:46 PM	43.51'
749	4/10/2023 7:30 PM	43.54'
749	4/10/2023 7:22 PM	43.49'
749	4/10/2023 7:16 PM	43.53'
749	4/10/2023 7:00 PM	43.53'
749	4/10/2023 6:46 PM	43.54'
749	4/10/2023 6:30 PM	43.52'
749	4/10/2023 6:16 PM	43.51'
749	4/10/2023 6:00 PM	43.54'
749	4/10/2023 5:46 PM	43.52'
749	4/10/2023 5:30 PM	43.54'
749	4/10/2023 5:16 PM	43.55'
749	4/10/2023 5:00 PM	43.52'
749	4/10/2023 4:46 PM	43.52'
749	4/10/2023 4:30 PM	43.53'
749	4/10/2023 4:16 PM	43.55'
749	4/10/2023 4:00 PM	43.55'
749	4/10/2023 3:46 PM	43.55'
749	4/10/2023 3:30 PM	43.56'
749	4/10/2023 3:16 PM	43.55'
749	4/10/2023 3:00 PM	43.56'
749	4/10/2023 2:46 PM	43.58'
749	4/10/2023 2:30 PM	43.55'
749	4/10/2023 2:16 PM	43.57'
749	4/10/2023 2:00 PM	43.56'
749	4/10/2023 1:46 PM	43.57'
749	4/10/2023 1:30 PM	43.60'
749	4/10/2023 1:16 PM	43.56'
749	4/10/2023 1:00 PM	43.55'
749	4/10/2023 12:46 PM	43.59'
749	4/10/2023 12:30 PM	43.57'
749	4/10/2023 12:22 PM	43.60'
749	4/10/2023 12:16 PM	43.56'
749	4/10/2023 12:00 PM	43.54'
749	4/10/2023 11:46 AM	43.55'

Flood Frequency

Elevation

10% (10-year)

45.40'

2% (50-year)

48.80'

1% (100-year)

49.90'

.2% (500-year)

52.00'

Historical Storm

Date

Event

Elevation

5/20/1983

48.00'

8/18/1983

Alicia

47.10'

5/18/1989

49.10'

6/27/1989

47.40'

3/4/1992

47.00'

10/18/1994

52.30'

9/13/2008

Ike

44.50'

4/18/2016

46.20'

5/27/2016

47.80'

8/27/2017

Harvey

53.10'

9/19/2019

Imelda

48.20'

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.