Scotts Level Branch at Rockdale, MD
USGS Site No: 01589290 • Scotts Level Branch • Baltimore County, MD
Scotts Level Branch at Rockdale, MD on the Scotts Level Branch is currently at 3 cfs (Normal — 55th percentile for this date) . Gage height: 0.85 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 | 1 | |
| 25th | Low threshold | 1 | |
| 50th (Median) | Normal (median) | 2 | |
| 75th | High threshold | 9 | Today: 3 cfs |
| 95th | Very High threshold | 42 |
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 | 4 | — |
| May 27, 2026 | 17 | — |
| May 26, 2026 | 4 | — |
| May 25, 2026 | 7 | — |
| May 24, 2026 | 73 | — |
| May 23, 2026 | 35 | — |
| May 22, 2026 | 6 | — |
| May 21, 2026 | 4 | — |
| May 18, 2026 | 0 | — |
| May 17, 2026 | 0 | — |
| May 16, 2026 | 0 | — |
| May 15, 2026 | 1 | — |
| Apr 21, 2026 | 1 | — |
| Apr 20, 2026 | 1 | — |
| Apr 19, 2026 | 1 | — |
| Apr 18, 2026 | 1 | — |
| Apr 15, 2026 | 1 | — |
| Apr 14, 2026 | 1 | — |
| Apr 13, 2026 | 1 | — |
| Apr 12, 2026 | 1 | — |
| Apr 11, 2026 | 1 | — |
| Apr 9, 2026 | 1 | — |
| Apr 8, 2026 | 1 | — |
| Apr 6, 2026 | 2 | — |
| Apr 5, 2026 | 6 | — |
| Apr 4, 2026 | 1 | — |
| Apr 3, 2026 | 1 | — |
| Apr 1, 2026 | 4 | — |
| Mar 31, 2026 | 1 | — |
| Mar 29, 2026 | 1 | — |
Station Information
- USGS Site No
- 01589290
- State
- MD
- County
- Baltimore County
- Coordinates
- 39.3616, -76.7618
- Drainage Area
- 3 mi²
- Datum (ft)
- 452.3
- HUC Code
- 020600030902
Flood Stage Thresholds
- Action Stage
- 5.0 ft
- Flood Stage
- 7.0 ft
- Moderate Flood
- 9.0 ft
- Major Flood
- 10.0 ft
Currently 6.15 ft below flood stage.
Recent Extremes
- Max discharge
-
73 cfsMay 24, 2026
- Min discharge
-
0 cfsOct 18, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Patapsco River at Hollofield, MDNormal3.9 mi · 92 cfs
-
Patapsco River Near Catonsville, MDNormal7.6 mi · 123 cfs
-
Pond Branch at Oregon Ridge, MDNormal9.1 mi · 0 cfs
-
Baisman Run at Broadmoor, MDNormal9.3 mi · 1 cfs
-
Patapsco River Near Elkridge, MDNormal9.5 mi · 132 cfs