Pool on Lake St. Croix Downstream of I94 Bridge vs St. Croix 8 Mi. Upstream of Point Douglas Dr Lake
Water quality, depth, fish species, and recreation comparison.
St. Croix 8 Mi. Upstream of Point Douglas Dr Lake has a higher water quality grade (C, Fair) than Pool on Lake St. Croix Downstream of I94 Bridge (C, Fair).
This comparison crosses state lines: Pool on Lake St. Croix Downstream of I94 Bridge in Minnesota versus St. Croix 8 Mi. Upstream of Point Douglas Dr Lake in Wisconsin. The LakeGrade rubric is uniform across both, but the underlying monitoring programs differ in subtle ways worth noting. The grades are close: Pool on Lake St. Croix Downstream of I94 Bridge (C) and St. Croix 8 Mi. Upstream of Point Douglas Dr Lake (C) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.
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.
Pool on Lake St. Croix Downstream of I94 Bridge
Murky, only visible to about 5 ft.
St. Croix 8 Mi. Upstream of Point Douglas Dr Lake
Moderate clarity, visible to about 8.9 ft.
Side-by-Side Metrics
| Metric | Pool on Lake St. Croix Downstream of I94 Bridge | St. Croix 8 Mi. Upstream of Point Douglas Dr Lake |
|---|---|---|
| Overall Grade | C (Fair) | C (Fair) |
| Water Clarity | 5 ft | 8.9 ft |
| Phosphorus | 39.5 µg/L | 51 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 78 ft | 60 ft |
| Surface Area | 8.4K acres | 7.7K acres |
| Public Access | No | Unknown |
| Fish Species | 1 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
St. Croix 8 Mi. Upstream of Point Douglas Dr Lake wins on overall water quality with a Grade C versus Pool on Lake St. Croix Downstream of I94 Bridge's Grade C. Water clarity: 8.9 ft vs 5 ft. For more fish-species variety, Pool on Lake St. Croix Downstream of I94 Bridge edges ahead with 1 documented species.