Pool on Lake St. Croix Downstream of I94 Bridge

Pool on Lake St. Croix Downstream of I94 Bridge earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. At 78 ft of maximum depth, Pool on Lake St. Croix Downstream of I94 Bridge stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 8,393 acres, Pool on Lake St. Croix Downstream of I94 Bridge is one of the larger lakes in Washington County, with 124.5 miles of shoreline supporting multiple distinct use patterns. Within Washington County's 31 graded lakes, Pool on Lake St. Croix Downstream of I94 Bridge ranks 23 — below the local median, though not at the bottom.

Eurasian watermilfoil is established at Pool on Lake St. Croix Downstream of I94 Bridge, which can dampen recreational access and pressure the native plant community. Pool on Lake St. Croix Downstream of I94 Bridge's fishery is anchored by muskellunge, with 36 documented species in total — a destination water for muskie anglers. No formal public access is documented at Pool on Lake St. Croix Downstream of I94 Bridge — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.