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River MD VA

Patuxent River - Tridelphia Reservoir

Maryland • 39.2162, -77.0283
Length
120 mi
193 km
Elevation
787′ → 0′
787 ft drop
Stream Order
6
Large River
Slope
0.12%
6.6 ft/mi
Drainage
943 mi²
2,442 km²
Avg Flow
1,090 cfs
1.6 mph velocity
Path to Mouth
218 mi
351 km to ocean
Classification
Headwater
Source Stream
Elevation Profile
Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

EPA WQP MyWaterway
Data from USGS & NOAA for informational purposes only. More
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Water Level Gauges on Patuxent River - Tridelphia Reservoir

There are 5 USGS water level monitoring stations on Patuxent River - Tridelphia Reservoir providing real-time flow and stage data.

Access Sites on Patuxent River - Tridelphia Reservoir

There are 2 boat ramps, launches, and public access points on Patuxent River - Tridelphia Reservoir.