Gulf Coast Gauges

Bess Branch at Alligator Park water level

NWS gauge CSSL1 · Calcasieu Parish Police Jury · Calcasieu Parish · Lake Charles and Southwest Louisiana

10.35 ft

stage, NAVD88 · Nov 3, 2026 at 10:05 PM CST · 45 minutes ago

Below NWS minor flood stage
9.7 ft
NWS action stage
18.0 ft
NWS minor flood stage
20.0 ft
NWS moderate flood stage
23.0 ft
NWS major flood stage
26.0 ft
Highest NWS crest
23.74 ft (April 29, 2020)
Usual range
10.31 to 10.42 ft
Highest since October 4, 2026
10.47 ft
Active National Weather Service alerts for Calcasieu Parish

Text as issued by NWS Lake Charles LA.

Last 7 days

10.3 10.6 10.8 Oct 28 Oct 29 Oct 30 Oct 31 Nov 1 Nov 2 Nov 3

Hourly averages of the readings. The shaded band is this gauge's usual range: the middle 80% of its readings since October 4, 2026.

How to read this gauge

The number is the water surface elevation in feet on NAVD88, the current national vertical datum: a height above a fixed survey reference, not a depth. Readings on different datums can't be compared directly.

The flood stages are the National Weather Service's references for this location, on the same scale as the reading. They describe the gauge, not any particular street or property.

Readings the NWS marks out of service are left out, and so is any single reading more than 2 ft from the readings either side of it, which is a sensor error rather than water; a newest reading that far from the one before waits for the next to agree.

Calcasieu Parish Police Jury runs this gauge; the National Weather Service publishes its readings and its flood stages, which is where this site reads them.

NWS historic crests

DateCrestAbove minor flood stage
April 29, 202023.74 ft3.7 ft

The highest crests the National Weather Service lists for this gauge, as published, on the same scale as the reading.

Daily highs and lows since October 4, 2026

10.3 10.5 10.8 2026-10-04 – 2026-11-03 · bars are daily low to high

Other NWS-published gauges in Lake Charles and Southwest Louisiana

GaugeStageDatumNWS flood stageUpdated
Bayou Lacassine at Lorrain Park-0.01 ft—4.0 ft below minor flood stage30 minutes ago
Calcasieu River at Goos Ferry Road1.85 ftNAVD88at or above action stage30 minutes ago
Calcasieu River at Saltwater Barrier3.90 ft—0.1 ft below minor flood stage18 hours ago
Calcasieu River at White Oak Park2.28 ftNAVD88at or above minor flood stage2 hours ago
Choupique Bayou at Highway 1081.89 ft—3.1 ft below minor flood stage35 minutes ago
Contraband Bayou at Common Street1.60 ft—6.4 ft below minor flood stage30 minutes ago
Houston River at Anthony Ferry Road1.69 ftNAVD882.8 ft below minor flood stage30 minutes ago
Indian Bayou at Coffey Road1.78 ftNAVD8811.2 ft below minor flood stage40 minutes ago
Little Bayou D'Inde at Wright Road1.13 ft—4.9 ft below minor flood stage35 minutes ago
Mermentau River at Lacassine Wildlife Refuge3.23 ft——2 hours ago
West Fork Calcasieu River at Dunn Ferry Road1.70 ft—3.3 ft below minor flood stage35 minutes ago

Download the readings

bess-branch-at-alligator-park.csv (CSV): every reading from the last 90 days, 1,340 rows, with time in UTC and local time, and the reading in feet on NAVD88.

bess-branch-at-alligator-park-daily.csv (CSV): the low and high of every day since October 4, 2026.

Source. Readings from Calcasieu Parish Police Jury, as published by the National Weather Service, which also sets the flood stages and lists the crests. The NWS name for this gauge is “Bess Branch at Alligator Park”. Recent readings are provisional and can be revised. This site is not affiliated with either.