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Bayou Grosse Tete in Louisiana

River28.2 mi
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Around Bayou Grosse Tete

Atchafalaya National Heritage Area17 mi5 mi

Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US

About this river

Bayou Grosse Tete is a 28.2 mile river. Streamflow is measured at the USGS gauge Bayou Grosse Tete S. of I10 at Grosse Tete, LA (site 07381427). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

2022 to 2025

Bayou Grosse Tete typically runs highest in April, at a median 118 cfs, and lowest in October, at -0.4 cfs. The highest flow on record for any single day is 1,120 cfs, in 2023.

Show the numbers
Typical flow by month at Bayou Grosse Tete S. of I10 at Grosse Tete, LA, in cfs
MonthTypical (cfs)Usual range (cfs)
January9923 to 544
February5910 to 561
March6722 to 412
April11820 to 468
May538.9 to 716
June8.3-2.1 to 103
July8.2-1.3 to 155
August4.2-6.0 to 312
September5.0-4.7 to 91
October-0.4-10 to 88
November22-4.0 to 62
December5712 to 253

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 3 years of record. Statistics published by the US Geological Survey for Bayou Grosse Tete S. of I10 at Grosse Tete, LA (site 07381427). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

7 mapped launches sit in the mapped area of Bayou Grosse Tete. Ramp data comes from the USGS national boat-ramp inventory.

  • Bayou Grosse TeteBayou Grosse TetePublic
  • Bayou MaringouinBayou MaringouinPublic
  • Bayou MaringouinBayou MaringouinPublic
  • Gulf Intracoastal WaterwayGulf Intracoastal WaterwayRestricted
  • Atchafalaya Basin Bridge (West)canalPublic
  • Atchafalaya Basin Bridge (East)canalPublic
  • Grosse TeteBayou Grosse TetePublic

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