Severn HUC8 02060004
A 955 km² sub-basin of the Mid-Atlantic region in MD. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
44
Stressed
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
41%
p9 of record
Water assets
2,309
0 springs · 1,918 wells
USGS gauges (1)
- SOUTH FORK JABEZ BRANCH AT MILLERSVILLE, MD015897950 cfsp9 · much below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 100 | 0 | 1/1 | p9 |
Top water assets
- 66Cove Point Lng Secondary Damreservoir
- 66Cove Point Lng Main Damreservoir
- 66Heritage Harbour (Mastline Drive)reservoir
- 65South River Colony Parcel A Swm Lakereservoir
- 65Annapolis Reservoirreservoir
- 65Severn Riverriver
- 65Lake Ridge Community Pond Dam (Alta Drive)reservoir
- 65Lake Waterford Damreservoir
- 65Seven Oaks Swm Damreservoir
- 65Riva Trace Community Pondreservoir