LouisianaReservoir, 2,843 acres
Cypress-Black Bayou Reservoir water level
Current level
177.73ft NGVD29
Reading from Oct 26, 2026
- Past 24 hours
- 0.00ft
- Past 7 days
- -0.09ft
- Past 30 days
- -0.42ft
- Trend
- Steady
Cypress-Black Bayou Reservoir was at 177.73 ft on October 26, holding steady over the past week (-0.09 ft).
Last 30 days
Recent daily readings
| Date | Level (ft NGVD29) | Change |
|---|---|---|
| Oct 25, 2026 | 177.73 | -0.02 |
| Oct 24, 2026 | 177.75 | -0.01 |
| Oct 23, 2026 | 177.76 | -0.01 |
| Oct 22, 2026 | 177.77 | -0.01 |
| Oct 21, 2026 | 177.78 | -0.02 |
| Oct 20, 2026 | 177.80 | -0.02 |
| Oct 19, 2026 | 177.82 | -0.02 |
| Oct 18, 2026 | 177.84 | -0.03 |
| Oct 17, 2026 | 177.87 | -0.05 |
| Oct 16, 2026 | 177.92 | 0.00 |
| Oct 15, 2026 | 177.92 | -0.01 |
| Oct 14, 2026 | 177.93 | -0.01 |
| Oct 13, 2026 | 177.94 | -0.01 |
| Oct 12, 2026 | 177.95 | -0.02 |
Reading these numbers
Readings are elevations in feet above the National Geodetic Vertical Datum of 1929 (NGVD29), the reference most older dam and lake charts use. If you compare with a newer chart in NAVD88, expect a difference of a few feet. Our glossary explains NGVD29 vs NAVD88.
On a reservoir, a few feet of drop changes the shoreline more than you would think. Low water exposes stumps, sandbars and old roadbeds that are normally well under the hull, and some ramps end before the water does.
High water brings its own problems: floating debris after storms, flooded docks and courtesy piers, and no-wake rules near flooded campgrounds. A quick look at the trend before you hitch up saves a wasted trip.
The gauge is listed by USGS as Cypress Bayou Lake near Benton, LA. Wind can pile water up at one end of a big lake for a few hours, so short spikes on a windy day are normal.
Cypress-Black Bayou Reservoir water level questions
What is the water level at Cypress-Black Bayou Reservoir today?
Cypress-Black Bayou Reservoir was at 177.73 ft on October 26, holding steady over the past week (-0.09 ft).
Is Cypress-Black Bayou Reservoir rising or falling?
Over the last seven days the level has held roughly steady (-0.09 ft), and it is -0.42 ft compared with 30 days ago.
Where does the Cypress-Black Bayou Reservoir water level data come from?
From the U.S. Geological Survey, gauge 07349815 (Cypress Bayou Lake near Benton, LA). USGS publishes provisional readings every 15 to 60 minutes; they can be revised later after quality checks.
How often is this page updated?
The page itself is rebuilt every day with the latest daily values, and the current reading refreshes straight from the USGS each time you open it.
Nearby lakes
If Cypress-Black Bayou is blown out, these are the closest alternatives. Tap through for their water levels.