Lake Waubesa

Lake Waubesa comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

A TSI near 50 places Lake Waubesa in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 38 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Lake Waubesa covers 2,074 acres alongside partial shoreline records, large enough that conditions can vary meaningfully between bays. Lake Waubesa ranks 4 of 23 in Dane County, putting it in the upper tier of locally monitored lakes.

Zebra mussels have been documented at Lake Waubesa, which alters the filter-feeding balance and can paradoxically increase water clarity while disrupting the food web. The fishery includes walleye alongside the lake's other 7 documented species — a notable draw for Wisconsin anglers. A documented public access point at Lake Waubesa makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.