Mansfield Hollow Lake fishing: Northern Pike, Bluegill, Pumpkinseed
Target species: Northern Pike, Bluegill, Pumpkinseed
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Mansfield Hollow Dam Boat Launch.
The lake
Mansfield Hollow Lake covers 508 acres in Connecticut, across 2 counties: Capitol and Southeastern Connecticut. It is a lake: 95.9% of it is 10 feet deep or less; the deepest point measured is at least 21 feet (6.4 m). Our records hold 4 species for this water.
Stocking: 2,511 fish in 2025
Connecticut DEEP Fisheries Division records list 2,511 fish released into this water in 2025.
- Northern Pike: 2,511 in 2025
Depth and bottom
Deepest measured point: at least 21 ft (6.4 m). That is the deepest contour line: the bottom goes deeper. 95.9% of the water is 10 feet or shallower. We hold 40 depth contour lines for this water.
- 0–2 ft: 20.2% of the water
- 2–4 ft: 21.9% of the water
- 4–6 ft: 24% of the water
- 6–8 ft: 17.7% of the water
- 8–10 ft: 12.1% of the water
- 10–12 ft: 3.7% of the water
- 12–14 ft: 0.4% of the water
3 target fish, led by Northern Pike
- Northern Pike — Feeding water: 50–75°F.
- Bluegill — Feeding water: 70–85°F.
- Pumpkinseed — Feeding water: 65–80°F.
Also recorded here: Banded Killifish.
1 ramp or launch on this water
On this water we hold 1 boat ramp.
- Mansfield Hollow Dam Boat Launch — Mansfield, Mansfield Hollow Dam Water Access. Bassett Bridge Road., Mansfield · website portal.ct.gov/DEEP/Boating/Boat-Launches/Mansfield-Hollow-Lake-Boat-Launch
The place listed has no fee or opening hours on file: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.
Water and conditions
Our water temperature readings average 77°F; they do not cover the whole year, so this is not a yearly average. These readings span 2020–2022. The latest reading is from 2022, more than three years ago: read these numbers as history, not as the water today.
What is hard here
With 95.9% of the water 10 feet or less, low level turns the flats into hazards. Only 1 public ramp is on file, so the launch decides where you fish.
Where this data comes from
- Connecticut DEEP — Connecticut DEEP: depth contours: class A, a survey of the bottom.
