How deep is Bashan Lake?

Bashan Lake reaches a maximum depth of 45 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 16 closed depth contours over about 273 acres, and half of that water sits inside the 18 ft line.

Where is the deepest part of Bashan Lake?

The deepest charted water on Bashan Lake lies inside the 45 ft contour, toward the eastern side of the lake. That contour encloses 1 acres, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.

How much of Bashan Lake is shallower than 18 feet?

About half. The 18 ft contour encloses 81 acres of the roughly 273 acres inside the outer 0 ft line, so the other half of the water is shallower than 18 feet. The sharpest drop is between 15 and 18 feet, where the mapped water sheds 67 acres.

How accurate is this Bashan Lake depth map?

The contours come from the CT DEEP Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. 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. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Connecticut lake depth maps

Bashan Lake depth map

Bashan Lake in East Haddam, Connecticut reaches a depth of 45 feet. Bashan Lake is charted here across 16 closed depth contours, from the 0 ft line down to 45 ft, enclosing about 273 acres of water. Half of that water lies inside the 18 ft line, and only 1 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.

Data: CT DEEP Lake Bathymetry (CC0). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated August 19, 2026

Bashan Lake depth chart: 16 depth contours from 0 to 45 ft

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

Bashan Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
0 ft	273 acres	100%
3 ft	252 acres	93%
6 ft	236 acres	86%
9 ft	213 acres	78%
12 ft	187 acres	69%
15 ft	148 acres	54%
18 ft	81 acres	30%
21 ft	44 acres	16%
24 ft	27 acres	10%
27 ft	21 acres	7.6%
30 ft	16 acres	5.9%
33 ft	12 acres	4.3%
36 ft	7.4 acres	2.7%
39 ft	4.8 acres	1.8%
42 ft	2.9 acres	1.1%
45 ft	1 acres	under 1%

Acreages are computed from the closed CT DEEP Lake Bathymetry contour rings, with islands subtracted. Shares are of the 273 acres inside the outermost charted contour (the 0 ft line), which is the outer edge of the mapped water, several state files carry no 0 ft shoreline line, so this is not the same as a share of the lake's published surface area.

Fishing Bashan Lake: an evenly graded bottom

The survey encloses about 273 acres of Bashan Lake inside its 0 ft contour, and half of that water lies inside the 18 ft line, so the bottom falls away at a steady rate rather than shelving off or dropping in one step. Between 15 and 18 ft the mapped water sheds 67 acres in 3 ft of depth, the sharpest change on the chart, start on that band, because it is where the bottom stops being flat. 1 acres, under 1% of the mapped water, lie inside the deepest 45 ft contour, toward the eastern side of the lake. With 45 ft at its deepest there is no true cold-water layer here, so structure does the work the thermocline does elsewhere: fish the points and inside turns where the 15 and 18 ft lines pinch together, hardest in early season and again as fish follow bait back down in autumn.

Ice fishing on Bashan Lake

Bashan Lake's 45 ft is a workable ice depth, enough water to hold fish all winter, without the slow freeze-up of a big basin. First light belongs on the 45 ft hole, all 1 acres of it; as the sun gets up, move onto the 15–18 ft break, and spend the middle of the day on the flats inside the 18 ft line. Check ice thickness locally before you walk out.

Bashan Lake depth map FAQs

How deep is Bashan Lake?: Bashan Lake reaches a maximum depth of 45 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 16 closed depth contours over about 273 acres, and half of that water sits inside the 18 ft line.
Where is the deepest part of Bashan Lake?: The deepest charted water on Bashan Lake lies inside the 45 ft contour, toward the eastern side of the lake. That contour encloses 1 acres, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.
How much of Bashan Lake is shallower than 18 feet?: About half. The 18 ft contour encloses 81 acres of the roughly 273 acres inside the outer 0 ft line, so the other half of the water is shallower than 18 feet. The sharpest drop is between 15 and 18 feet, where the mapped water sheds 67 acres.
How accurate is this Bashan Lake depth map?: The contours come from the CT DEEP Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. 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. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Depth maps for lakes near Bashan Lake

Chapman Pond depth map · 16 ft max · 4 mi away
Lake Hayward depth map · 33 ft max · 5 mi away
Higganum Reservoir depth map · 30 ft max · 8 mi away
Cedar Lake depth map · 40 ft max · 8 mi away
Pataconk Reservoir depth map · 15 ft max · 8 mi away

Mapped fishing venues near Bashan Lake

Bashan Lake in the venue directory covers access and fishing details for this water.

Chapman Pond · 4 mi away
Lake Hayward · 5 mi away
Higganum Reservoir · 8 mi away

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