Mamanasco Lake, CT


Mamanasco Lake

Town(s): Ridgefield CT
County: Fairfield

Size: 89 acres
Average Depth: 8 feet
Maximum Depth: 11 feet

Boating Allowed: Kayaks, Canoes, Sail Boats, Electric Motor Boats
Swimming: Swimming Allowed, No Restrictions

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Mamanasco Lake is located in Ridgefield and is a natural lake within the Hudson River Drainage Basin. The water level was raised slightly by an earthen dam. The watershed is 901 acres of mostly residentially developed and some agricultural land. It is fed by the outlet stream of Turtle Pond and by surface runoff. The lake drains northward through a marsh into the Titicus River, which eventually feeds into the Croton River in New York State. The southwestern sore is dominated by residential development with some homes right at the water’s edge. The northeastern shore is mostly wooded with some steep cliff areas and a moderate number of homes set back from the water.

The transparency of the water is very turbid, with visibility of 2.5 ft. in the summer. The bottom of the lake consists of ledge, broken ledge and organic muck. The fishing should be good to excellent for bass ( especially during spring), crappie, sunfish and bullheads. Heavy submerging vegetation makes fishing difficult in the summer, however.

Water Quality: Treated Annually, No Known Issues
Vegetation Growth: Unknown
Non-native Species: Unknown

Fishing Comments: Should be excellent for bass, espically during the spring.
Fish Species: Largemouth Bass, Smallmouth Bass, Chain Pickerel, Black Crappie, Yellow Perch, Brown Bullhead, Sunfish, Bluegill, Golden Shiner

Boat Access: Primarily Car-top boats & Canoes
Ramp Comments: A state-owned boat launch is located on the southern shore. Facilities at the launch include a paved boat ramp and parking for 10 cars. Take Exit 3 off I-84, Rte. 7 south, Rte. 35 south, Rte. 116 west for 3.4 miles, left on Mamanasco Rd., launch is 1 mile on left.
Parking Spaces: Less than 10

Shoreline Development: 25-50%