Gulf Coast Gauges

Bayou Teche below Keystone Lock and Dam near St. Martinville water level

USGS gauge 07385702 · St. Martin Parish · Lafayette and Acadiana

3.20 ft

gage height, Oct 23, 2026 at 2:45 PM CDT · 2 hours ago

Highest since 1913 (USGS)
24.30 ft (May 27, 1927)
Usual range
3.14 to 3.96 ft

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

No National Weather Service alert covering St. Martin 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

2.5 3.2 4.0 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 -2.12 ft NAVD88. It is not a water depth and not an elevation: add -2.12 ft to get the water surface elevation.

Daily highs and lows since September 11, 2026

2.5 3.6 4.6 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 1913

In 108 complete water years of comparable USGS records (since 1913), the highest peak was 24.30 ft on May 27, 1927. So far in water year 2027 (since October 1) the highest reading is 4.19 ft on October 4, 2026, higher than the annual peak in 1 of 108 years.

1 7 13 20 26 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Water year 1913: 13.10 ft on September 27, 1913 Water year 1914: 12.70 ft on October 1, 1913 Water year 1915: 10.10 ft on February 27, 1915 Water year 1916: 9.20 ft on May 23, 1916 Water year 1917: 7.00 ft on March 4, 1917 Water year 1918: 2.50 ft on August 7, 1918 Water year 1919: 8.80 ft on January 26, 1919 Water year 1920: 8.10 ft on January 25, 1920 Water year 1921: 9.20 ft on December 22, 1920 Water year 1922: 8.90 ft on March 28, 1922 Water year 1923: 10.40 ft on December 18, 1922 Water year 1924: 10.80 ft on January 16, 1924 Water year 1925: 4.70 ft on June 9, 1925 Water year 1926: 9.60 ft on March 29, 1926 Water year 1927: 24.30 ft on May 27, 1927 Water year 1928: 9.10 ft on June 3, 1928 Water year 1929: 8.20 ft on June 28, 1929 Water year 1930: 10.00 ft on January 29, 1930 Water year 1931: 7.80 ft on January 12, 1931 Water year 1932: 10.20 ft on February 22, 1932 Water year 1933: 8.70 ft on March 12, 1933 Water year 1934: 7.20 ft on March 3, 1934 Water year 1935: 11.20 ft on May 6, 1935 Water year 1936: 6.80 ft on February 7, 1936 Water year 1937: 8.40 ft on March 14, 1937 Water year 1938: 7.40 ft on April 21, 1938 Water year 1939: 7.20 ft on May 21, 1939 Water year 1940: 15.00 ft on August 17, 1940 Water year 1941: 9.00 ft on December 26, 1940 Water year 1942: 10.40 ft on April 8, 1942 Water year 1943: 7.90 ft on March 26, 1943 Water year 1944: 7.90 ft on January 14, 1944 Water year 1945: 9.20 ft on May 16, 1945 Water year 1946: 11.00 ft on July 6, 1946 Water year 1947: 14.65 ft on March 13, 1947 Water year 1948: 11.30 ft on March 5, 1948 Water year 1949: 9.60 ft on March 22, 1949 Water year 1950: 9.86 ft on February 13, 1950 Water year 1951: 9.30 ft on March 26, 1951 Water year 1952: 8.60 ft on April 12, 1952 Water year 1953: 11.80 ft on May 19, 1953 Water year 1954: 11.50 ft on July 29, 1954 Water year 1955: 11.30 ft on May 20, 1955 Water year 1956: 10.00 ft on February 4, 1956 Water year 1957: 11.40 ft on December 20, 1956 Water year 1958: 9.10 ft on October 16, 1957 Water year 1959: 11.70 ft on February 2, 1959 Water year 1960: 9.80 ft on December 17, 1959 Water year 1961: 10.20 ft on September 14, 1961 Water year 1962: 9.80 ft on April 28, 1962 Water year 1963: 7.00 ft on January 20, 1963 Water year 1964: 10.00 ft on March 2, 1964 Water year 1965: 15.40 ft on October 4, 1964 Water year 1966: 12.40 ft on February 12, 1966 Water year 1967: 9.40 ft on August 28, 1967 Water year 1968: 7.15 ft on January 2, 1968 Water year 1969: 11.90 ft on April 13, 1969 Water year 1970: 8.45 ft on March 4, 1970 Water year 1971: 9.45 ft on September 17, 1971 Water year 1972: 13.80 ft on December 6, 1971 Water year 1973: 12.50 ft on September 5, 1973 Water year 1974: 10.60 ft on January 26, 1974 Water year 1975: 10.20 ft on January 8, 1975 Water year 1976: 10.60 ft on March 25, 1976 Water year 1977: 11.70 ft on April 21, 1977 Water year 1978: 12.40 ft on June 6, 1978 Water year 1985: 16.11 ft on October 23, 1984 Water year 1986: 11.73 ft on October 29, 1985 Water year 1987: 9.77 ft on December 23, 1986 Water year 1988: 12.53 ft on February 18, 1988 Water year 1989: 12.25 ft on July 14, 1989 Water year 1990: 9.46 ft on February 9, 1990 Water year 1991: 10.17 ft on May 15, 1991 Water year 1992: 11.97 ft on August 26, 1992 Water year 1993: 13.48 ft on January 20, 1993 Water year 1994: 11.56 ft on November 15, 1993 Water year 1995: 11.25 ft on March 14, 1995 Water year 1996: 12.85 ft on December 18, 1995 Water year 1997: 13.08 ft on October 26, 1996 Water year 1998: 12.14 ft on September 12, 1998 Water year 1999: 8.30 ft on July 24, 1999 Water year 2000: 6.39 ft on September 13, 2000 Water year 2001: 13.14 ft on June 8, 2001 Water year 2002: 10.91 ft on April 8, 2002 Water year 2003: 11.86 ft on October 29, 2002 Water year 2004: 11.92 ft on May 15, 2004 Water year 2005: 11.77 ft on September 24, 2005 Water year 2006: 10.58 ft on April 30, 2006 Water year 2007: 12.00 ft on January 5, 2007 Water year 2008: 13.17 ft on September 2, 2008 Water year 2009: 10.14 ft on March 27, 2009 Water year 2010: 12.23 ft on December 8, 2009 Water year 2011: 8.22 ft on September 4, 2011 Water year 2012: 10.63 ft on February 18, 2012 Water year 2013: 12.68 ft on January 10, 2013 Water year 2014: 11.94 ft on July 18, 2014 Water year 2015: 10.33 ft on April 14, 2015 Water year 2016: 16.50 ft on August 13, 2016 Water year 2017: 12.04 ft on August 29, 2017 Water year 2018: 11.41 ft on January 27, 2018 Water year 2019: 12.56 ft on July 14, 2019 Water year 2020: 10.90 ft on July 28, 2020 Water year 2021: 13.59 ft on May 12, 2021 Water year 2022: 8.59 ft on August 3, 2022 Water year 2023: 12.06 ft on January 29, 2023 Water year 2024: 10.37 ft on January 27, 2024 Water year 2025: 12.23 ft on June 13, 2025 Water year 2026: 11.77 ft on May 9, 2026 Water year 2027 so far: 4.19 ft on October 4, 2026 1927 2016 1985

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.

Download the readings

bayou-teche-below-keystone-lock-and-dam-near-st-martinville.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,048 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.