Big Falls Flowage
Big Falls Flowage in Rusk County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 282 acres.
- Area
- 282 acres
Next lake in Rusk County
Swipe left or right on this bar to open the next or previous lake.
Why Big Falls Flowage has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Big Falls Flowage, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Big Falls Flowage is a 282-acre lake in Rusk County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Big Falls Flowage water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Big Falls Flowage
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Big Falls Flowage
Compare lakeside cabins, hotels, and vacation rentals near Big Falls Flowage in Rusk County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Big Falls Flowage
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 282 acres |
No bathymetric survey has been published for Big Falls Flowage, so its depth is not documented here.
Fishing Big Falls Flowage
Nearby Lakes in Rusk County
Frequently asked questions about Big Falls Flowage
Where is Big Falls Flowage?
- Big Falls Flowage is a lake in Rusk County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Big Falls Flowage?
- Big Falls Flowage in Rusk County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 282 acres.
Is Big Falls Flowage safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Big Falls Flowage is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Big Falls Flowage across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Rusk County
Species activity outlook by water temperature and season
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Chippewa River Watershed, ranked by water quality
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
Other Lakes in Wisconsin
Where this data comes from
Measurements for Big Falls Flowage come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.