Patuxent HUC8 02060006
A 2,401 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
72
Moderate
Drought index
101
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
13%
of 8 reporting
Median flow
86%
p40 of record
Water assets
4,600
33 springs · 3,391 wells
USGS gauges (11)
- Patuxent River below Brighton Dam near Brighton MD0159161025 cfsp23 · below normal
- PATUXENT RIVER NEAR BOWIE, MD01594440103 cfsp25 · normal
- LITTLE PATUXENT RIVER AT SAVAGE, MD0159400025 cfsp34 · normal
- Patuxent River near Laurel, MD0159250019 cfsp39 · normal
- LITTLE PATUXENT RIVER AT GUILFORD, MD0159350011 cfsp40 · normal
- PATUXENT RIVER NEAR UNITY, MD0159100012 cfsp43 · normal
- CATTAIL CREEK NEAR GLENWOOD, MD015914008 cfsp44 · normal
- HAWLINGS RIVER NEAR SANDY SPRING, MD015917008 cfsp54 · normal
- L PAX RIV TRIB ABOVE WILDE LAKE AT COLUMBIA, MD01593370no readingno long-term record
- L Pax Riv Trib above Lake Elkhorn nr Guilford, MD015934501 cfsno long-term record
- WESTERN BRANCH AT UPPER MARLBORO, MD01594526no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 101 | 0 | 1/8 | p40 |
Top water assets
- 67T. Howard Duckett Damreservoir
- 66Umstc Lower Dam (Curie Drive)reservoir
- 66Rattlewood Golf Coursereservoir
- 66Columbia Gateway Damreservoir
- 66Chesapeake Ranch Estates Dam (Chisolm Trail)reservoir
- 66Lake Arbor (Lake Arbor Way)reservoir
- 66Jessup Prison Damreservoir
- 66Beechtree Damreservoir
- 66Brightonreservoir
- 66Centennial Park Damreservoir