Tilleda Off Bridge Lake

On the LakeGrade rubric Tilleda Off Bridge Lake fails the cutoffs — a TSI of 82 and persistent algal pressure put it in the bottom tier. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The hypereutrophic status — TSI 82 — reflects sustained heavy nutrient loading from the surrounding watershed and frequent algal pressure. At only 11 ft deep, Tilleda Off Bridge Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. At 28 acres, Tilleda Off Bridge Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Within the 27 graded lakes of Shawano County, Tilleda Off Bridge Lake sits at rank 27, near the bottom of the county list.

Eurasian watermilfoil is established at Tilleda Off Bridge Lake, which can dampen recreational access and pressure the native plant community. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. A documented public access point at Tilleda Off Bridge Lake 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.