Houma–Thibodaux water levels
9 USGS stream gauges in Assumption, Lafourche and Terrebonne parishes · gage height, with NWS flood stages where published
By parish
Assumption Parish Lafourche Parish Terrebonne Parish
Assumption Parish
| Gauge | Gage height | NWS flood stage | Updated |
|---|---|---|---|
| Bayou Lafourche at Napoleonville | 4.50 ft | — | 3 hours ago |
| Belle River at Highway 70 near Pierre Part | 1.00 ft | — | 2 hours ago |
Lafourche Parish
| Gauge | Gage height | NWS flood stage | Updated |
|---|---|---|---|
| Bayou Lafourche at Lockport | 5.18 ft | — | 3 hours ago |
| Bayou Lafourche at Thibodaux | 3.12 ft | — | 3 hours ago |
| Bayou Perot at Point Legard near Cutoff | 2.81 ft | — | 2 hours ago |
| Company Canal at Highway 1 at Lockport | 1.86 ft | — | 3 hours ago |
| Company Canal at Salt Barrier near Lockport | 2.43 ft | — | 3 hours ago |
Terrebonne Parish
| Gauge | Gage height | NWS flood stage | Updated |
|---|---|---|---|
| Caillou Bay southwest of Cocodrie | 1.97 ft | — | 3 hours ago |
| Caillou Lake (Sister Lake) southwest of Dulac | 2.29 ft | — | 3 hours ago |
Storms
No National Weather Service flood alert has named any of Assumption, Lafourche and Terrebonne parishes since this site began recording alerts here on October 23, 2026. Each new event gets its own page, with every gauge's peak, automatically.
Reading these gauges
USGS gauges report gage height: the water surface above each gauge's own zero, not a depth. Where that zero is set at 0 ft on a vertical datum the gage height is also an elevation; each gauge page says which. The NWS flood stages (action, minor, moderate and major) are the National Weather Service's references for each location, shown only where the NWS reads the same scale as USGS. How this site works.