Chippewa Flowage -North of Cranberry Bars Lake
Sawyer County, WisconsinEutrophic
Chippewa Flowage -North of Cranberry Bars Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. 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 -North of Cranberry Bars Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. At 92 ft of maximum depth, Chippewa Flowage -North of Cranberry Bars Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 14,593 acres, Chippewa Flowage -North of Cranberry Bars Lake is one of the larger lakes in Sawyer County, with partial shoreline records supporting multiple distinct use patterns. Within the 50 graded lakes of Sawyer County, Chippewa Flowage -North of Cranberry Bars Lake sits at rank 41, near the bottom of the county list.
Eurasian watermilfoil is established at Chippewa Flowage -North of Cranberry Bars 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 -North of Cranberry Bars Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is supported by multiple sampling years from the Wisconsin DNR Citizen Lake Monitoring Network, giving the letter a reasonably stable foundation.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.9 ft. Phosphorus level: 37 µg/L. Chlorophyll-a: 9.8 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.9 ft | D |
| Phosphorus | 37 µg/L | C |
| Chlorophyll-a (Algae) | 9.8 µg/L | B |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 92 ft |
| Surface Area | 14,593 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Chippewa Flowage -North of Cranberry Bars Lake (14-day solunar calendar)
→ Is it safe to eat fish from Chippewa Flowage -North of Cranberry Bars Lake? (mercury & PFAS guide)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.229 m/yr | 4 |
| Phosphorus | ↓ Declining | +4.5 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -0.47 µg/L/yr | 2 |
Recreation & Access
Location
County Ranking
Ranked #41 of 50 lakes in Sawyer County
Cleaner Lakes Within 30 Miles
Chippewa Flowage -North of Cranberry Bars Lake holds Grade C. 5 nearby lakes hold higher grades.
- ABlueberry LakeSawyer County · mi · Two grade letters higher (C → A)
- ALost LakeSawyer County · mi · Two grade letters higher (C → A)
- ABarber LakeSawyer County · mi · Two grade letters higher (C → A)
- BCallahan LakeSawyer County · mi · Higher grade (C → B)
- BChippewa Flowage LakeSawyer County · mi · Higher grade (C → B)
Nearby Lakes in Sawyer County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Compare Chippewa Flowage -North of Cranberry Bars Lake With Nearby Lakes
Sawyer County · Grade C
Sawyer County · Grade C
Sawyer County · Grade C
Sawyer County · Grade B
Sawyer County · Grade A
Sawyer County · Grade C
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 9 stations on file (most recent sample 2020).
Fish Species (DNR-rated)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2024-09-12
Monitoring stations: 1
Where to stay near Chippewa Flowage -North of Cranberry Bars Lake
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