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Amite River at Bayou Manchac Point

Highest listed crest 21.50 ftFlood stage 9.0 ft35 crests since 1972

The Amite River at Bayou Manchac Point crested at major flood stage 8 times among the 35 crests the National Weather Service lists from 1972 to 2026. The highest, 21.50 ft on August 14, 2016, was major flooding, 12.50 feet above flood stage. 6 other gauges on the Amite River crested above flood stage within a week of it, 6 at their own highest listed crest.

The gauge

Highest listed crest
21.50 ft
August 14, 2016
Flood stage
9.0 ft
Major flooding from 15.0 ft
Crests at major
8
18th of 107 gauges in Louisiana
Most recent flood crest
May 12, 2026
10.00 ft, minor flooding
Location
East Baton Rouge Parish
Near St. George (7.8 mi), Gonzales (9.5 mi)
Identifiers
NWS BYML1
No USGS station

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Amite River at Bayou Manchac Point
Action stage7.01Mar 7, 2001The level at which the NWS or its partners begin to take action
Flood stage (minor)9.016May 12, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage12.09Apr 17, 2021Some inundation of structures and roads near the stream
Major flood stage15.08Aug 14, 2016Extensive inundation of structures and roads

Every listed crest

35 crests from 1972 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Amite River at Bayou Manchac Point, 1972 to 2026 510152025ft Flood stage 9.0 ftMajor 15.0 ft Dec 10, 1972: 11.73 ft, minor floodingMar 27, 1973: 12.99 ft, moderate floodingApr 23, 1977: 17.38 ft, major floodingApr 25, 1979: 15.94 ft, major floodingMar 31, 1980: 15.52 ft, major floodingApr 8, 1983: 18.85 ft, major floodingNov 1, 1985: 11.56 ft, minor floodingApr 4, 1989: 11.82 ft, minor floodingJan 23, 1993: 16.70 ft, major floodingApr 10, 1993: 11.60 ft, minor floodingApr 30, 1997: 13.30 ft, moderate floodingJan 10, 1998: 13.50 ft, moderate floodingNov 21, 2000: 5.40 ft, below flood stageMar 7, 2001: 8.70 ft, action stageJun 10, 2001: 17.50 ft, major floodingFeb 24, 2003: 13.80 ft, moderate floodingMay 18, 2004: 12.80 ft, moderate floodingFeb 4, 2005: 9.60 ft, minor floodingOct 30, 2006: 9.40 ft, minor floodingSep 6, 2008: 13.90 ft, moderate floodingMar 31, 2009: 11.70 ft, minor floodingFeb 21, 2012: 10.20 ft, minor floodingSep 2, 2012: 11.05 ft, minor floodingJan 12, 2013: 13.10 ft, moderate floodingFeb 24, 2014: 9.24 ft, minor floodingOct 29, 2015: 11.20 ft, minor floodingMar 14, 2016: 15.30 ft, major flooding; 60,027 cubic feet per secondAug 14, 2016: 21.50 ft, major floodingJan 30, 2018: 9.20 ft, minor floodingMay 13, 2019: 12.24 ft, moderate flooding; 41,591 cubic feet per secondFeb 14, 2021: 10.20 ft, minor floodingApr 17, 2021: 12.70 ft, moderate floodingMay 18, 2021: 9.37 ft, minor floodingJan 28, 2024: 9.40 ft, minor floodingMay 12, 2026: 10.00 ft, minor flooding Highest, 21.50 ft, Aug 14, 2016 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Amite River at Bayou Manchac Point 1970s: 4 1980s: 4 1990s: 4 2000s: 7 2010s: 9 9 2020s: 5 1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Amite River at Bayou Manchac Point
1Aug 14, 201621.50+12.50Major—
2Apr 8, 198318.85+9.85Major—
3Jun 10, 200117.50+8.50Major—
4Apr 23, 197717.38+8.38Major—
5Jan 23, 199316.70+7.70Major—
6Apr 25, 197915.94+6.94Major—
7Mar 31, 198015.52+6.52Major—
8Mar 14, 201615.30+6.30Major60,027
9Sep 6, 200813.90+4.90Moderate—
10Feb 24, 200313.80+4.80Moderate—
11Jan 10, 199813.50+4.50Moderate—
12Apr 30, 199713.30+4.30Moderate—
13Jan 12, 201313.10+4.10Moderate—
14Mar 27, 197312.99+3.99Moderate—
15May 18, 200412.80+3.80Moderate—
16Apr 17, 202112.70+3.70Moderate—
17May 13, 201912.24+3.24Moderate41,591
18Apr 4, 198911.82+2.82Minor—
19Dec 10, 197211.73+2.73Minor—
20Mar 31, 200911.70+2.70Minor—
21Apr 10, 199311.60+2.60Minor—
22Nov 1, 198511.56+2.56Minor—
23Oct 29, 201511.20+2.20Minor—
24Sep 2, 201211.05+2.05Minor—
25Feb 21, 201210.20+1.20Minor—
26Feb 14, 202110.20+1.20Minor—
27May 12, 202610.00+1.00Minor—
28Feb 4, 20059.60+0.60Minor—
29Oct 30, 20069.40+0.40Minor—
30Jan 28, 20249.40+0.40Minor—
31May 18, 20219.37+0.37Minor—
32Feb 24, 20149.24+0.24Minor—
33Jan 30, 20189.20+0.20Minor—
34Mar 7, 20018.70−0.30Action—
35Nov 21, 20005.40−3.60Below flood stage—

The worst floods along the Amite River

For this gauge's highest crests, the other gauges on the Amite River that crested above flood stage within a week.

August 14, 2016: 21.50 ft here, major flooding

  • MagnoliaLA · Aug 13, 2016 · 58.56 ft · Major · its highest
  • Denham SpringsLA · Aug 14, 2016 · 46.20 ft · Major · its highest
  • GrangevilleLA · Aug 13, 2016 · 44.62 ft · Major · its highest
  • Port VincentLA · Aug 15, 2016 · 17.50 ft · Major · its highest
  • French SettlementLA · Aug 16, 2016 · 9.21 ft · Major · its highest
  • DarlingtonLA · Aug 13, 2016 · 22.54 ft · Moderate · its highest

April 8, 1983: 18.85 ft here, major flooding

June 10, 2001: 17.50 ft here, major flooding

Gauges on the Amite River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Amite River
Bayou Manchac Point this gaugeLA9.021.50 ft, Aug 14, 20168
Denham SpringsLA29.046.20 ft, Aug 14, 20165
French SettlementLA4.09.21 ft, Aug 16, 20161
GrangevilleLA35.044.62 ft, Aug 13, 20161
Hwy 22 near MaurepasLA4.07.48 ft, Aug 30, 20122
MagnoliaLA48.058.56 ft, Aug 13, 20161
Port VincentLA8.017.50 ft, Aug 15, 20163
DarlingtonLA18.022.54 ft, Aug 13, 20160

Other gauges in East Baton Rouge Parish

Flood gauges in East Baton Rouge Parish
Magnolia48.058.56 ft, Aug 13, 20161
Comite Joor Rd.20.034.22 ft, Aug 14, 20163

East Baton Rouge Parish: every hazard · River floods across the country · Louisiana

NOAA National Water Prediction Service, gauge BYML1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.