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LakeQuality
B

Chippewa Flowage -North of Cranberry Bars Lake

Sawyer County, WisconsinMesotrophic

Chippewa Flowage -North of Cranberry Bars Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. Phosphorus is the parameter holding the grade back — runoff from the surrounding watershed appears to keep nutrient levels elevated through the summer.

A TSI near 49 places Chippewa Flowage -North of Cranberry Bars Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. 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 52 graded lakes of Sawyer County, Chippewa Flowage -North of Cranberry Bars Lake sits at rank 42, 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.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Crystal clear, you can see 15.9 ft down. Phosphorus level: 37 µg/L. Chlorophyll-a: 9.8 µg/L. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)15.9 ftA
Phosphorus37 µg/LC
Chlorophyll-a (Algae)9.8 µg/LB
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth92 ft
Surface Area14.6K acres
Public AccessYes

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ 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 Species

Chinese Mystery SnailEurasian Water-MilfoilPurple Loosestrife

Water Quality Trend: Improving

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.222 m/yr5
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 #42 of 52 lakes in Sawyer County

Cleaner Lakes Within 30 Miles

Chippewa Flowage -North of Cranberry Bars Lake holds Grade B. 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

Most recent sample: 2024-09-12

Monitoring stations: 1