Beaverdam Run at Cockeysville, MD
USGS Site No: 01583600 • Beaverdam Run • Baltimore County, MD
Beaverdam Run at Cockeysville, MD on the Beaverdam Run is currently at 16 cfs (Normal — 51th percentile for this date) . Gage height: 2.36 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 | 10 | |
| 25th | Low threshold | 13 | |
| 50th (Median) | Normal (median) | 16 | |
| 75th | High threshold | 25 | Today: 16 cfs |
| 95th | Very High threshold | 119 |
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 | 20 | — |
| May 27, 2026 | 31 | — |
| May 26, 2026 | 25 | — |
| May 25, 2026 | 40 | — |
| May 24, 2026 | 252 | — |
| May 23, 2026 | 203 | — |
| May 22, 2026 | 59 | — |
| May 21, 2026 | 52 | — |
| May 20, 2026 | 39 | — |
| May 19, 2026 | 12 | — |
| May 18, 2026 | 13 | — |
| May 17, 2026 | 13 | — |
| May 16, 2026 | 14 | — |
| May 15, 2026 | 14 | — |
| Apr 21, 2026 | 10 | — |
| Apr 20, 2026 | 11 | — |
| Apr 19, 2026 | 14 | — |
| Apr 18, 2026 | 10 | — |
| Apr 17, 2026 | 10 | — |
| Apr 16, 2026 | 10 | — |
| Apr 15, 2026 | 13 | — |
| Apr 14, 2026 | 13 | — |
| Apr 13, 2026 | 11 | — |
| Apr 12, 2026 | 11 | — |
| Apr 11, 2026 | 12 | — |
| Apr 10, 2026 | 12 | — |
| Apr 9, 2026 | 12 | — |
| Apr 8, 2026 | 12 | — |
| Apr 7, 2026 | 13 | — |
| Apr 6, 2026 | 14 | — |
Station Information
- USGS Site No
- 01583600
- State
- MD
- County
- Baltimore County
- Coordinates
- 39.4856, -76.6457
- Drainage Area
- 21 mi²
- Datum (ft)
- 239.7
- HUC Code
- 02060003
Flood Stage Thresholds
- Action Stage
- 7.0 ft
- Flood Stage
- 9.0 ft
- Moderate Flood
- 10.0 ft
- Major Flood
- 11.0 ft
Currently 6.64 ft below flood stage.
Recent Extremes
- Max discharge
-
252 cfsMay 24, 2026
- Min discharge
-
6 cfsSep 9, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Baisman Run at Broadmoor, MDNormal1.8 mi · 1 cfs
-
Pond Branch at Oregon Ridge, MDLow2.3 mi · 0 cfs
-
Western Run at Western Run, MDNormal2.4 mi · 39 cfs
-
Gunpowder Falls at Glencoe, MDNormal4.5 mi · 97 cfs
-
Long Quarter Branch at Lutherville, MDVery High4.9 mi · 1 cfs