Gulf Coast Gauges

Alligator Bayou near Kleinpeter water level

USGS gauge 07378745 · Ascension Parish · Baton Rouge · NWS gauge ALLL1

1.65 ft

gage height, Oct 23, 2026 at 2:15 PM CDT · 3 hours ago

Highest since 2001 (USGS)
13.12 ft (August 21, 2016)
Usual range
1.42 to 2.69 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 5:05 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

1.4 2.1 2.7 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 this gauge's own zero point, which sits at -0.50 ft NAVD88. It is not a water depth and not an elevation: add -0.50 ft to get the water surface elevation.

Daily highs and lows since September 11, 2026

1.1 2.1 3.2 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 1955

In 26 complete water years of comparable USGS records (since 2001), the highest peak was 13.12 ft on August 21, 2016. So far in water year 2027 (since October 1) the highest reading is 3.20 ft on October 10, 2026.

2 5 8 11 14 1960 1970 1980 1990 2000 2010 2020 Water year 1955: 7.45 ft on April 23, 1955 (different datum or site: not compared) Water year 1956: 7.45 ft on February 19, 1956 (different datum or site: not compared) Water year 1957: 6.60 ft on March 28, 1957 (different datum or site: not compared) Water year 1958: 6.95 ft on November 29, 1957 (different datum or site: not compared) Water year 1959: 8.32 ft on June 10, 1959 (different datum or site: not compared) Water year 1960: 6.70 ft on December 27, 1959 (different datum or site: not compared) Water year 1961: 8.30 ft on September 15, 1961 (different datum or site: not compared) Water year 1962: 9.44 ft on December 23, 1961 (different datum or site: not compared) Water year 1963: 5.50 ft on February 25, 1963 (different datum or site: not compared) Water year 1964: 6.92 ft on March 6, 1964 (different datum or site: not compared) Water year 1965: 7.72 ft on March 5, 1965 (different datum or site: not compared) Water year 1966: 10.00 ft on March 3, 1966 (different datum or site: not compared) Water year 1967: 5.79 ft on February 7, 1967 (different datum or site: not compared) Water year 1968: 5.80 ft on January 3, 1968 (different datum or site: not compared) Water year 1969: 8.03 ft on April 19, 1969 (different datum or site: not compared) Water year 1970: 6.50 ft on January 3, 1970 (different datum or site: not compared) Water year 1971: 6.77 ft on September 18, 1971 (different datum or site: not compared) Water year 1972: 8.20 ft on December 13, 1971 (different datum or site: not compared) Water year 1973: 9.03 ft on April 26, 1973 (different datum or site: not compared) Water year 1974: 6.70 ft on April 25, 1974 (different datum or site: not compared) Water year 1975: 7.65 ft on August 7, 1975 (different datum or site: not compared) Water year 1976: 6.58 ft on March 29, 1976 (different datum or site: not compared) Water year 1977: 8.70 ft on September 16, 1977 (different datum or site: not compared) Water year 1978: 7.57 ft on January 28, 1978 (different datum or site: not compared) Water year 2000: 6.34 ft on December 22, 1999 (different datum or site: not compared) Water year 2001: 10.14 ft on June 15, 2001 Water year 2002: 7.00 ft on April 14, 2002 Water year 2003: 7.43 ft on October 5, 2002 Water year 2004: 8.21 ft on February 27, 2004 Water year 2005: 6.84 ft on June 11, 2005 Water year 2006: 6.49 ft on May 4, 2006 Water year 2007: 8.46 ft on January 9, 2007 Water year 2008: 6.86 ft on February 15, 2008 Water year 2009: 7.39 ft on April 2, 2009 Water year 2010: 9.18 ft on December 20, 2009 Water year 2011: 5.74 ft on September 8, 2011 Water year 2012: 8.08 ft on September 3, 2012 Water year 2013: 9.43 ft on January 20, 2013 Water year 2014: 7.44 ft on June 2, 2014 Water year 2015: 7.08 ft on April 30, 2015 Water year 2016: 13.12 ft on August 21, 2016 Water year 2017: 7.54 ft on October 1, 2016 Water year 2018: 6.65 ft on February 4, 2018 Water year 2019: 7.64 ft on May 21, 2019 Water year 2020: 7.37 ft on May 18, 2020 Water year 2021: 12.33 ft on May 28, 2021 Water year 2022: 8.11 ft on October 4, 2021 Water year 2023: 7.26 ft on January 5, 2023 Water year 2024: 6.69 ft on January 30, 2024 Water year 2025: 6.55 ft on May 11, 2025 Water year 2026: 8.16 ft on May 14, 2026 Water year 2027 so far: 3.20 ft on October 10, 2026 2016 2021 2001

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 (25 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.

Download the readings

alligator-bayou-near-kleinpeter.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,041 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.