Reservoir · Maryland
Triadelphia Reservoir
Triadelphia Reservoir
Reservoir · Maryland
Information Only
StrikeTracks does not currently provide a live condition rating for this destination. Destination and fishery information is still available.
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Fishery Profile
Documented species you may encounter at Triadelphia Reservoir.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Fishery overview
Triadelphia is the upstream WSSC Patuxent reservoir behind Brighton Dam, a largemouth-and-smallmouth lake that also holds landlocked striped bass, walleye, chain pickerel, and northern pike. Do not treat it as a copy of Rocky Gorge downstream.
Target species
Largemouth Bass
Micropterus nigricans
- Expectation
- Primary
- Population
- Established
- Native status
- native
- Confidence
- High confidence
MD DNR Dec 2024 report names Triadelphia among central reservoirs with excellent largemouth bass.
Chain Pickerel
Esox niger
- Expectation
- Common
- Population
- Established
- Native status
- native
- Confidence
- High confidence
MD DNR Dec 2024 report: central reservoirs including Triadelphia hold excellent chain pickerel.
Striped bass
Morone saxatilis
- Expectation
- Common
- Population
- Stocked
- Native status
- introduced
- Confidence
- High confidence
MD DNR fish facts and Dec 2024 report: Liberty and Triadelphia are noted for landlocked striped bass; continues to be stocked when available.
Walleye
Sander vitreus
- Expectation
- Common
- Population
- Stocked
- Native status
- introduced
- Confidence
- High confidence
MD DNR May 2026 report: 2024 gill-net survey collected 11 walleye 3–5 lb; fingerling stocking program back to 1992.
Northern Pike
Esox lucius
- Expectation
- Present
- Population
- Established
- Native status
- introduced
- Confidence
- High confidence
MD DNR Dec 2024 report: northern pike can be found in Triadelphia.
Smallmouth Bass
Micropterus dolomieu
- Expectation
- Present
- Population
- Established
- Native status
- native
- Confidence
- High confidence
MD DNR 2025 Impoundment Rankings recorded smallmouth bass >14 inches at Triadelphia Reservoir (0.7/hour, 2020).
Fishery characteristics
- Composition
- Mixed wild and stocked
Patuxent storage above Brighton Dam with broader flooded flats and creek arms than Rocky Gorge, plus enough depth for stripers and walleye and weedy or woody edges for pickerel and pike. WSSC drinking-water shoreline remains restricted.
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Boat fishing
- Shore fishing
- Spinning
- Trolling
Access and Public Fishing Rights
WSSC controls Triadelphia launches and bank sites separately from Rocky Gorge. Confirm the current Brighton Dam / Triadelphia permit, ramp, and closed-zone list. Catalog coordinates are a reservoir reference, not a Brighton Dam parking pin.
Stocking information
Existing notes record landlocked striped bass stocked when available and a walleye fingerling program dating to 1992, including documented 2024 gill-net fish. Pickerel, pike, and black bass are established. Confirm the current-year MD DNR stocking list for Triadelphia only.
- Stocked
Striped bass
Stocked · Maryland Department of Natural Resources
- Stocked
Walleye
Stocked · Maryland Department of Natural Resources
Official sources
Maryland freshwater seasons and limits apply on this pool, and WSSC drinking-water restrictions can differ from Rocky Gorge even though both are Patuxent supply lakes. Verify MD DNR rules and the current WSSC Triadelphia posting before fishing.
Location and Access
Cataloged lake location
Maryland
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
Lake Details
Management Category
Reservoir / catalog-visible Unavailable
Regulation Scope
Triadelphia Reservoir
Regulation Summary
Maryland freshwater fishing regulations apply; confirm current seasons, access, and limits.
Target Species
Largemouth Bass
Public Access
Public
Description
WSSC Patuxent drinking-water reservoir behind Brighton Dam. Distinct from Rocky Gorge. Catalog-visible Unavailable under accepted MIDATL-1A / POLICY-1: kind=reservoir, no qualifying same-lake USGS water-temperature station, ordinary L-C/L-D Estimated prohibited. Drinking-water reservoir; ordinary L-C/L-D prohibited. Elevation, outlet/tailwater, tributary, and nearby-lake readings are not lake-body thermal. Unavailable means insufficient information, not Poor. Confirm current regulations and access. Coordinates are a public lake reference point, not a verified launch pin.
