Manasquan River Near Allenwood NJ
USGS Site No: 01408029 • Manasquan River • Monmouth County, NJ
Manasquan River Near Allenwood NJ on the Manasquan River is currently at 31 cfs (Normal — 49th percentile for this date) . Gage height: 7.56 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 12 | |
| 25th | Low threshold | 17 | |
| 50th (Median) | Normal (median) | 32 | Today: 31 cfs |
| 75th | High threshold | 74 | |
| 95th | Very High threshold | 472 |
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 29, 2026 | 33 | — |
| May 28, 2026 | 42 | — |
| May 27, 2026 | 28 | — |
| May 26, 2026 | 14 | — |
| May 25, 2026 | 76 | — |
| May 24, 2026 | 84 | — |
| May 23, 2026 | 11 | — |
| May 22, 2026 | 11 | — |
| May 21, 2026 | 13 | — |
| May 20, 2026 | 11 | — |
| May 19, 2026 | 14 | — |
| May 18, 2026 | 12 | — |
| May 17, 2026 | 11 | — |
| May 16, 2026 | 11 | — |
| May 15, 2026 | 11 | — |
| Apr 21, 2026 | 12 | — |
| Apr 20, 2026 | 12 | — |
| Apr 19, 2026 | 11 | — |
| Apr 18, 2026 | 10 | — |
| Apr 17, 2026 | 11 | — |
| Apr 13, 2026 | 9 | — |
| Apr 12, 2026 | 9 | — |
| Apr 11, 2026 | 10 | — |
| Apr 10, 2026 | 10 | — |
| Apr 9, 2026 | 52 | — |
| Apr 8, 2026 | 27 | — |
| Apr 7, 2026 | 13 | — |
| Apr 6, 2026 | 27 | — |
| Apr 5, 2026 | 13 | — |
| Apr 4, 2026 | 11 | — |
Station Information
- USGS Site No
- 01408029
- State
- NJ
- County
- Monmouth County
- Coordinates
- 40.1467, -74.1222
- Drainage Area
- 63 mi²
- Datum (ft)
- -1.1
- HUC Code
- 020403010105
Flood Stage Thresholds
- Action Stage
- 13.0 ft
- Flood Stage
- 14.5 ft
- Moderate Flood
- 17.0 ft
- Major Flood
- 18.0 ft
Currently 6.94 ft below flood stage.
Recent Extremes
- Max discharge
-
517 cfsMar 6, 2026
- Min discharge
-
9 cfsMar 29, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Manasquan River at Squankum NJNormal2.0 mi · 32 cfs
-
Shark River Near Neptune City NJVery Low4.5 mi · 1 cfs
-
Jumping Brook Near Neptune City NJLow4.9 mi · 3 cfs
-
Swimming River Near Red Bank NJNormal12.0 mi · 12 cfs
-
Big Brook Near Marlboro NJVery Low12.9 mi · 4 cfs