Monroe City Lake B Nr. Dam vs Shelbyville Lake
Water quality, depth, fish species, and recreation comparison.
Monroe City Lake B Nr. Dam has a higher water quality grade (C, Fair) than Shelbyville Lake (F, Very Poor). Both are in Wisconsin.
Both Monroe City Lake B Nr. Dam and Shelbyville Lake sit in Missouri. 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. Monroe City Lake B Nr. Dam (C) is materially cleaner than Shelbyville Lake (F). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider grade gap is decisive — Monroe City Lake B Nr. Dam is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Monroe City Lake B Nr. Dam
No clarity data.
Shelbyville Lake
Very murky, less than 1 ft of visibility.
Side-by-Side Metrics
| Metric | Monroe City Lake B Nr. Dam | Shelbyville Lake |
|---|---|---|
| Overall Grade | C (Fair) | F (Very Poor) |
| Water Clarity | No data | 1 ft |
| Phosphorus | 44 µg/L | 252.5 µg/L |
| Chlorophyll-a (Algae) | No data | 112.4 µg/L |
| Maximum Depth | - | - |
| Surface Area | 50 acres | 30 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | hypereutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Monroe City Lake B Nr. Dam wins on overall water quality with a Grade C versus Shelbyville Lake's Grade F. For fishing diversity, Monroe City Lake B Nr. Dam also leads with 0 species.