How deep is Bridge Lake?

Bridge Lake reaches a maximum depth of 87 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 10 closed depth contours over about 68 acres, and half of that water sits inside the 50 ft line.

Where is the deepest part of Bridge Lake?

The deepest charted water on Bridge Lake lies inside the 87 ft contour, toward the northwestern corner of the lake. That contour encloses 7.1 acres, 11% 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 Bridge Lake is shallower than 50 feet?

About half. The 50 ft contour encloses 33 acres of the roughly 68 acres inside the outer 5 ft line, so the other half of the water is shallower than 50 feet. The sharpest drop is between 50 and 60 feet, where the mapped water sheds 15 acres.

How accurate is this Bridge Lake depth map?

The contours come from the Michigan DNR Inland Lake Contours 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.

Michigan lake depth maps

Bridge Lake depth map

Bridge Lake in Otsego County, Michigan reaches a depth of 87 feet. Bridge Lake is charted here across 10 closed depth contours, from the 5 ft line down to 87 ft, enclosing about 68 acres of water. Half of that water lies inside the 50 ft line, and only 7.1 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.

Data: Michigan DNR Inland Lake Contours (public record). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated August 19, 2026

Bridge Lake depth chart: 10 depth contours from 5 to 87 ft

Data: Michigan DNR Inland Lake Contours (public record), retrieved August 2026 · depths change over time · not for navigation

Bridge Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
5 ft	68 acres	100%
10 ft	63 acres	93%
20 ft	59 acres	88%
30 ft	54 acres	80%
40 ft	46 acres	68%
50 ft	33 acres	49%
60 ft	18 acres	27%
70 ft	15 acres	22%
80 ft	12 acres	18%
87 ft	7.1 acres	11%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 68 acres inside the outermost charted contour (the 5 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 Bridge Lake: a stepped drop into deep water

About 68 acres of Bridge Lake sit inside the survey's 5 ft contour, and half of that water is already gone by the 50 ft line: the bottom steps down contour by contour into the deep basin rather than shelving flat or plunging all at once. The steepest break on the chart runs from 50 down to 60 ft: 15 acres of bottom fall away across 10 ft there, which makes that band the first contour to work. 7.1 acres, 11% of the mapped water, lie inside the deepest 87 ft contour, toward the northwestern corner of the lake. At 87 ft this is two-story water: the basin can stay cold below the summer thermocline while warm-water fish stay up on the 5-to-50 ft ground, and the fish that move between the two do it along the 50–60 ft break at first and last light.

Ice fishing on Bridge Lake

Deep water like Bridge Lake freezes later and less evenly than the shallow lakes around it, and the winter bite sets up on the first real break, not out over the 87 ft hole. That edge is the 50–60 ft band on the chart above, where 15 acres of bottom tilt away, and panfish and walleye work up and down it through the day. By late ice the fish push back onto the 5-to-50 ft flat. Check ice thickness locally before you walk out.

Bridge Lake depth map FAQs

How deep is Bridge Lake?: Bridge Lake reaches a maximum depth of 87 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 10 closed depth contours over about 68 acres, and half of that water sits inside the 50 ft line.
Where is the deepest part of Bridge Lake?: The deepest charted water on Bridge Lake lies inside the 87 ft contour, toward the northwestern corner of the lake. That contour encloses 7.1 acres, 11% 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 Bridge Lake is shallower than 50 feet?: About half. The 50 ft contour encloses 33 acres of the roughly 68 acres inside the outer 5 ft line, so the other half of the water is shallower than 50 feet. The sharpest drop is between 50 and 60 feet, where the mapped water sheds 15 acres.
How accurate is this Bridge Lake depth map?: The contours come from the Michigan DNR Inland Lake Contours 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 Bridge Lake

Big Chub Lake depth map · 74+ ft max · 1 mi away
Heart Lake depth map · 123 ft max · 3 mi away
Big Bradford Lake depth map · 102 ft max · 4 mi away
Big Lake depth map · 81 ft max · 8 mi away
Shupac Lake depth map · 97 ft max · 9 mi away

Mapped fishing venues near Bridge Lake

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

Big Chub Lake · 1 mi away
Heart Lake · 3 mi away
Big Bradford Lake · 4 mi away

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