Froelich Dam Lake vs Nygren Dam Lake
Water quality, depth, fish species, and recreation comparison.
Froelich Dam Lake and Nygren Dam Lake both received the same overall water quality grade of D (Poor). Both are in Wisconsin.
Both Froelich Dam Lake and Nygren Dam Lake sit in North Dakota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Froelich Dam Lake (D) versus Nygren Dam Lake (D). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Froelich Dam Lake
Murky, only visible to about 3.9 ft.
Nygren Dam Lake
Very murky, less than 2.6 ft of visibility.
Side-by-Side Metrics
| Metric | Froelich Dam Lake | Nygren Dam Lake |
|---|---|---|
| Overall Grade | D (Poor) | D (Poor) |
| Water Clarity | 3.9 ft | 2.6 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | 37.5 µg/L | 24.7 µg/L |
| Maximum Depth | - | - |
| Surface Area | 175 acres | 33.1 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade D. The tiebreakers come down to clarity (Froelich Dam Lake: 3.9 ft, Nygren Dam Lake: 2.6 ft) and what you want from the lake. Froelich Dam Lake matches its peer on species count.