Chippewa Flowage -Winter Dam Lake

The LakeGrade rubric puts Chippewa Flowage -Winter Dam Lake at a C: clarity at 4.4 ft, 49 µg/L of phosphorus, and a TSI of 55 signal an intermediate trophic state. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.

At a TSI of 55, Chippewa Flowage -Winter Dam Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake's 92 ft maximum depth is in the upper tier for Wisconsin — deep enough for cold-water fish to find refuge in summer. Chippewa Flowage -Winter Dam Lake covers 14,593 acres alongside partial shoreline records, large enough that conditions can vary meaningfully between bays. Chippewa Flowage -Winter Dam Lake ranks 44 of 50 in Sawyer County — at the lower end of the locally monitored distribution.

Eurasian watermilfoil is established at Chippewa Flowage -Winter Dam Lake, which can dampen recreational access and pressure the native plant community. The fishery includes walleye alongside the lake's other 8 documented species — a notable draw for Wisconsin anglers. A documented public access point at Chippewa Flowage -Winter Dam Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Multiple sampling years from the Wisconsin DNR Citizen Lake Monitoring Network back the grade, so the letter should hold steady absent a major watershed shift.