Antietam Creek Near Sharpsburg, MD
USGS Site No: 01619500 • Antietam Creek • Washington County, MD
Antietam Creek Near Sharpsburg, MD on the Antietam Creek is currently at 271 cfs (High — 80th percentile for this date) . Gage height: 2.92 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 | 82 | |
| 25th | Low threshold | 99 | |
| 50th (Median) | Normal (median) | 131 | |
| 75th | High threshold | 181 | |
| 95th | Very High threshold | 552 | Today: 271 cfs |
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 | 328 | — |
| May 27, 2026 | 336 | — |
| May 26, 2026 | 352 | — |
| May 25, 2026 | 398 | — |
| May 24, 2026 | 498 | — |
| May 23, 2026 | 409 | — |
| May 22, 2026 | 231 | — |
| May 21, 2026 | 179 | — |
| May 20, 2026 | 125 | — |
| May 19, 2026 | 127 | — |
| May 18, 2026 | 132 | — |
| May 17, 2026 | 134 | — |
| May 16, 2026 | 140 | — |
| May 15, 2026 | 146 | — |
| Apr 21, 2026 | 177 | — |
| Apr 20, 2026 | 195 | — |
| Apr 19, 2026 | 184 | — |
| Apr 18, 2026 | 173 | — |
| Apr 17, 2026 | 176 | — |
| Apr 16, 2026 | 194 | — |
| Apr 15, 2026 | 192 | — |
| Apr 14, 2026 | 183 | — |
| Apr 13, 2026 | 185 | — |
| Apr 12, 2026 | 190 | — |
| Apr 11, 2026 | 196 | — |
| Apr 10, 2026 | 202 | — |
| Apr 9, 2026 | 207 | — |
| Apr 8, 2026 | 214 | — |
| Apr 7, 2026 | 231 | — |
| Apr 6, 2026 | 268 | — |
Station Information
- USGS Site No
- 01619500
- State
- MD
- County
- Washington County
- Coordinates
- 39.4498, -77.7302
- Drainage Area
- 281 mi²
- Datum (ft)
- 310.4
- HUC Code
- 02070004
Flood Stage Thresholds
- Action Stage
- 7.0 ft
- Flood Stage
- 8.0 ft
- Moderate Flood
- 10.0 ft
- Major Flood
- 12.0 ft
Currently 5.08 ft below flood stage.
Recent Extremes
- Max discharge
-
1,070 cfsMay 14, 2025
- Min discharge
-
60 cfsJan 25, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Marsh Run at Grimes, MDHigh5.1 mi · 13 cfs
-
Catoctin Creek Near Middletown, MDHigh9.4 mi · 101 cfs
-
Carroll Creek Near Frederick, MDNormal15.5 mi · 1 cfs
-
Potomac River at Point Of Rocks, MDVery High15.8 mi · 34,600 cfs
-
Monocacy River at Monocacy Blvd at Frederick, MDNormal18.6 mi · 788 cfs