How deep is West Branch Reservoir?

West Branch Reservoir reaches a maximum depth of 90 feet, according to the CT DEEP Lake Bathymetry survey. Most of the lake is shallower, with 9 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of West Branch Reservoir?

The deepest surveyed water on West Branch Reservoir sits toward the southeastern corner of the lake, inside the 90 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this West Branch Reservoir depth map?

The contours come from the CT DEEP Lake Bathymetry survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Connecticut lake depth maps

West Branch Reservoir depth map

West Branch Reservoir in Hartland, Connecticut reaches a depth of 90 feet. The official Connecticut survey maps 9 depth bands across 64 contour lines. This free map of West Branch Reservoir shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

West Branch Reservoir depth chart: 9 depth bands to 90 ft

Data: CT DEEP Lake Bathymetry (CC0), retrieved August 2026 · depths change over time · not for navigation

West Branch Reservoir depth chart data
Depth contour	Share of mapped area inside it
10 ft	about 100%
20 ft	about 29%
40 ft	about 29%
70 ft	about 19%
90 ft	about 19%

Share of the surveyed surface area enclosed by each depth contour, computed from the CT DEEP Lake Bathymetry data.

How to fish West Branch Reservoir: deep, two-story water

At 90 feet, this is a two-story fishery: warm-water species work the shallows and weed edges while the deep basin can hold cold-water fish below the summer thermocline. In summer, target the transition where the bottom breaks from the shallow shelf toward the basin; fish suspend along that edge at dawn and dusk. The 9 mapped depth bands make it straightforward to find those breaks before you launch.

Ice fishing on West Branch Reservoir

On deep water like West Branch Reservoir, the winter bite concentrates along the first major drop-off rather than the deepest basin. Use the contours above to find where the shallow shelf breaks toward deep water and set up on that edge; panfish and walleye slide up and down it through the day. Late ice often pushes fish shallower again. Always verify ice thickness locally before walking out, and remember deep lakes freeze later and less evenly than shallow ones.

West Branch Reservoir depth map FAQs

How deep is West Branch Reservoir?: West Branch Reservoir reaches a maximum depth of 90 feet, according to the CT DEEP Lake Bathymetry survey. Most of the lake is shallower, with 9 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of West Branch Reservoir?: The deepest surveyed water on West Branch Reservoir sits toward the southeastern corner of the lake, inside the 90 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this West Branch Reservoir depth map?: The contours come from the CT DEEP Lake Bathymetry survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Depth maps for lakes near West Branch Reservoir

Colebrook River Reservoir depth map · 130 ft max · 3 mi away
Highland Lake depth map · 60 ft max · 7 mi away
McDonough Lake depth map · 50 ft max · 8 mi away
West Hill Pond depth map · 60 ft max · 8 mi away
Winchester Lake depth map · 16 ft max · 9 mi away

Mapped fishing venues near West Branch Reservoir

West Branch Reservoir in the venue directory covers access and fishing details for this water.

Colebrook River Reservoir · 3 mi away
Highland Lake · 7 mi away
McDonough Lake · 8 mi away

Fishing in Connecticut needs a state license: US fishing license guide · all Connecticut venues