Bradley Brook Reservoir
Madison County, WisconsinLimited DataOligotrophic
Bradley Brook Reservoir is a 141-acre cold, clear oligotrophic lake in Madison County, NY. Water quality is graded A based on 1 sampling years through 2020. Compared to the 7 other monitored lakes in Madison County, Bradley Brook Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-08-29. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 20.7 ft down. Trophic State Index: 33.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 20.7 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 33 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 141 acres |
Location
County Ranking
Ranked #1 of 8 lakes in Madison County
Nearby Lakes in Madison County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Oligotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Bradley Brook Reservoir is a man-made reservoir impounded by the Bradley Brook Reservoir Dam (completed 1878), built primarily for other on the BRADLEY BROOK; earth-type dam, 35 ft tall and 1,060 ft long.
- Surface area
- 141 ac
- Normal storage
- 2,340 ac-ft
- Max storage
- 2,800 ac-ft
- Drainage area
- 2.6 sq mi
- Hazard class
- Significant
- Owner
- New York State Canal Corporation
All listed purposes: Other;Recreation.
Source: USACE National Inventory of Dams, NID ID NY00360 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-08-29
Monitoring stations: 1