Mississippi River at Belle Chasse, LA
USGS Site No: 07374525 • Mississippi River • Plaquemines Parish, LA
Mississippi River at Belle Chasse, LA on the Mississippi River is currently at 465,000 cfs (Low — 18th percentile for this date) . Gage height: 10.22 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 311,000 | |
| 25th | Low threshold | 586,000 | Today: 465,000 cfs |
| 50th (Median) | Normal (median) | 698,000 | |
| 75th | High threshold | 945,000 | |
| 95th | Very High threshold | 0 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 429,000 | 9.73 |
| May 27, 2026 | 419,000 | 9.64 |
| May 26, 2026 | 420,000 | 9.58 |
| May 25, 2026 | 421,000 | 9.66 |
| May 24, 2026 | 432,000 | 9.53 |
| May 23, 2026 | 440,000 | 9.66 |
| May 22, 2026 | 443,000 | 9.66 |
| May 21, 2026 | 461,000 | 9.76 |
| May 20, 2026 | 472,000 | 9.87 |
| May 19, 2026 | 480,000 | 10.01 |
| May 18, 2026 | 495,000 | 10.19 |
| May 17, 2026 | 513,000 | 10.30 |
| May 16, 2026 | 536,000 | 10.35 |
| May 15, 2026 | 561,000 | 10.56 |
| Apr 20, 2026 | 552,000 | 10.50 |
| Apr 19, 2026 | 551,000 | 10.35 |
| Apr 18, 2026 | 545,000 | 10.13 |
| Apr 17, 2026 | 539,000 | 10.14 |
| Apr 16, 2026 | 526,000 | 10.16 |
| Apr 15, 2026 | 509,000 | 10.08 |
| Apr 14, 2026 | — | 9.82 |
| Apr 13, 2026 | 468,000 | 9.55 |
| Apr 12, 2026 | 447,000 | 9.48 |
| Apr 11, 2026 | 441,000 | 9.43 |
| Apr 10, 2026 | 429,000 | 9.62 |
| Apr 9, 2026 | 403,000 | 9.91 |
| Apr 8, 2026 | 389,000 | 9.53 |
| Apr 7, 2026 | 389,000 | 9.53 |
| Apr 6, 2026 | — | 9.50 |
| Apr 5, 2026 | 419,000 | 9.14 |
Station Information
- USGS Site No
- 07374525
- State
- LA
- County
- Plaquemines Parish
- Coordinates
- 29.8572, -89.9778
- Drainage Area
- 1,130,000 mi²
- Datum (ft)
- -6.6
- HUC Code
- 08090100
Recent Extremes
- Max discharge
-
1,210,000 cfsMay 1, 2025
- Min discharge
-
389,000 cfsApr 8, 2026
Computed from the local daily-values archive.
Nearby Gauges
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Caernarvon Outfall Channel at Caernarvon, LANormal4.2 mi · 571 cfs
-
Naomi Diversion Canal Near Naomi, LAUnknown10.9 mi · 0 cfs
-
Pearl River at I-10 Near Slidell, LAVery High34.6 mi · 2,650 cfs
-
East Pearl River at Csx Railroad near Claiborne, MSVery High35.3 mi · 10,800 cfs
-
Tchefuncte River at Madisonville, LAUnknown39.2 mi · 0 cfs