Gulf Coast Gauges

Henderson Bayou near Port Vincent water level

USGS gauge 07380126 · Ascension Parish · Baton Rouge · NWS gauge HENL1

1.57 ft

gage height, Oct 23, 2026 at 2:00 PM CDT · 4 hours ago

Highest since 1999 (USGS)
15.61 ft (August 15, 2016)
Usual range
1.27 to 2.60 ft

USGS marks recent readings as provisional: they can be revised after review.

No National Weather Service alert covering Ascension Parish was active when this page was generated (Oct 23, 2026 at 5:50 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

1.3 1.9 2.6 Oct 17 Oct 18 Oct 19 Oct 20 Oct 21 Oct 22 Oct 23

Hourly averages of USGS readings. The shaded band is this gauge's usual range: the middle 80% of its readings since September 11, 2026.

How to read this gauge

Gage height is the height of the water surface above the gauge's zero point. This gauge's zero is set at 0 ft NAVD88, so its gage height is the water surface elevation above that datum. It is not a water depth.

Daily highs and lows since September 11, 2026

0.9 2.0 3.2 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 1980

In 28 complete water years of comparable USGS records (since 1999), the highest peak was 15.61 ft on August 15, 2016. So far in water year 2027 (since October 1) the highest reading is 3.18 ft on October 10, 2026.

2 7 13 18 24 1980 1990 2000 2010 2020 Water year 1980: 16.21 ft on May 19, 1980 (different datum or site: not compared) Water year 1981: 15.07 ft on February 10, 1981 (different datum or site: not compared) Water year 1982: 15.39 ft on March 22, 1982 (different datum or site: not compared) Water year 1983: 22.28 ft on April 9, 1983 (different datum or site: not compared) Water year 1984: 16.24 ft on December 28, 1983 (different datum or site: not compared) Water year 1998: 8.09 ft on January 10, 1998 (different datum or site: not compared) Water year 1999: 5.33 ft on March 17, 1999 Water year 2000: 3.68 ft on December 20, 1999 Water year 2001: 12.00 ft on June 10, 2001 Water year 2002: 3.25 ft on September 26, 2002 Water year 2003: 8.39 ft on February 25, 2003 Water year 2004: 7.41 ft on May 18, 2004 Water year 2005: 5.08 ft on October 11, 2004 Water year 2006: 6.60 ft on April 30, 2006 Water year 2007: 6.45 ft on December 30, 2006 Water year 2008: 7.98 ft on September 6, 2008 Water year 2009: 6.74 ft on March 27, 2009 Water year 2010: 6.03 ft on December 14, 2009 Water year 2011: 5.25 ft on September 3, 2011 Water year 2012: 8.95 ft on August 30, 2012 Water year 2013: 8.45 ft on January 13, 2013 Water year 2014: 7.55 ft on May 28, 2014 Water year 2015: 6.13 ft on March 2, 2015 Water year 2016: 15.61 ft on August 15, 2016 Water year 2017: 6.31 ft on August 29, 2017 Water year 2018: 6.34 ft on April 14, 2018 Water year 2019: 6.26 ft on April 4, 2019 Water year 2020: 7.45 ft on July 6, 2020 Water year 2021: 8.03 ft on May 18, 2021 Water year 2022: 6.02 ft on June 3, 2022 Water year 2023: 7.14 ft on December 30, 2022 Water year 2024: 6.18 ft on September 5, 2024 Water year 2025: 6.58 ft on March 29, 2025 Water year 2026: 5.96 ft on May 11, 2026 Water year 2027 so far: 3.18 ft on October 10, 2026 2016 2001 2012

Each dot is the highest gage height of a water year (October to September), from the USGS annual peak record, with recent years USGS has not published yet taken from its 15-minute readings and this site's own; hover a dot for its date. Dashed lines are NWS flood stages. Grey hollow dots (6 years) were measured on a different datum or at a different site, or before the gauge's datum last changed, so they are shown but not compared.

NWS historic crests

DateCrestAbove minor flood stage
August 15, 201615.61 ft—
June 20, 200112.00 ft—
August 30, 20128.95 ft—
March 13, 20168.44 ft—
September 6, 20087.98 ft—
March 27, 20096.74 ft—
April 30, 20066.60 ft—
December 30, 20066.45 ft—

The highest crests the National Weather Service lists for this gauge, as published. They can differ from the USGS annual peaks above: USGS records the year's highest gage height, which is not always the crest the NWS lists for the same flood.

Download the readings

henderson-bayou-near-port-vincent.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,045 rows, with time in UTC and Central, gage height in feet, and the USGS approval status.

Source. Gage height from the U.S. Geological Survey. This site is not affiliated with either agency.