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C

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.

MetricValueGrade
Water Clarity (Secchi Depth)4.9 ftD
Phosphorus37 µg/LC
Chlorophyll-a (Algae)9.8 µg/LB
Trophic State Index (TSI)55Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth92 ft
Surface Area14,593 acres
Public AccessYes

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)

Chippewa Flowage -North of Cranberry Bars Lake fishing regulations (limits, seasons, special rules)

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Chinese Mystery SnailEurasian Water-MilfoilPurple Loosestrife

Water Quality Trend: Improving

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.229 m/yr4
Phosphorus Declining+4.5 µg/L/yr2
Chlorophyll-a Improving-0.47 µg/L/yr2
See year-by-year chart →

Recreation & Access

6
Boat Landings
Yes
Public Access

Location

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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.

See full comparison →

Nearby Lakes in Sawyer County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 9 stations on file (most recent sample 2020).

Fish Species (DNR-rated)

Walleye(Abundant)Musky(Common)Panfish(Common)Largemouth Bass(Common)Smallmouth Bass(Common)Northern Pike(Common)Sturgeon(Present)Catfish(Present)

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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