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Reservoir

Triadelphia Reservoir

Howard & Montgomery Counties, Maryland

Triadelphia Reservoir is a WSSC-owned water supply reservoir of approximately 800 acres that allows fishing and boating with a watershed use permit. Maryland DNR lists it among the reservoirs where nontidal striped bass may be harvested.

N2 mi
Air temp Loading current temperature…
Map data © OpenStreetMap contributors.
Surface area800 acres
Max depth—
Shoreline—
Boat motorsCheck local rules

Species

Fishery rating out of 5.

Largemouth Bass●●●○○

Sampled in DNR impoundment bass rankings

Smallmouth Bass●●○○○

Sampled in DNR impoundment bass rankings

Striped Bass●○○○○

DNR lists Tridelphia as a nontidal striped bass harvest water

Boat launches

2 launch sites. Fees and hours change, so confirm before you go.

  • Big Branch LaunchPublic
    Public launch operated by WSSC, Howard County; open mid-March to Nov 30 during watershed hours (30 min before sunrise to sunset); Watershed Use Permit $6 daily / $70 annualDirections ↗
  • More public accessPublic
    See the state agency or lake website for all ramps and feesDirections ↗

Size & creel limits

Minimum size and daily limit for each species in Triadelphia Reservoir are published by the state. Look up the current size and creel limits for this lake directly: Maryland Department of Natural Resources ↗

Rules change, so confirm current limits with the Maryland Department of Natural Resources before you fish.

Bait & tackle nearby

No shops listed yet for this lake. Use the search link below.

Search more bait shops near Triadelphia Reservoir ↗

Local tips

  • A WSSC Watershed Use Permit is needed to launch; buy it at the Brighton Dam Information Center
  • Launching is only allowed mid-March through November 30 and during daylight hours
  • Bass numbers are lower here than at nearby Rocky Gorge in DNR electrofishing rankings, so work cover patiently

View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches.

More Maryland lakes

Liberty Reservoir Loch Raven Reservoir Prettyboy Reservoir Rocky Gorge Reservoir (T. Howard Duckett) Little Seneca Lake Savage River Reservoir Piney Run Reservoir Lake Habeeb All Maryland lakes →

Always wear a life jacket and check your state's current regulations before you fish.