Lake Bracken
Knox County, Illinois142 acresView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- Impaired · Mercury
- 33 ft max depth
Lake Bracken in Knox County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 33 ft. Surface area: 142 acres.
Lake Bracken is a 142-acre lake in Knox County, Illinois with a maximum depth of 33 feet (17-foot average).
Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.
What Lake Bracken is good for
From access and monitoring records, not editorial picks.
- Deep water33 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Lake Bracken is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pesticides. Check local advisories before you swim.
Whether Lake Bracken is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Bracken
These are the measurements Illinois EPA publishes for Lake Bracken, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Lake Bracken
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
33 ft
Average depth
17 ft
Surface area
142 acres
Shoreline
5.8 mi
Stays via Stay22
Stays near Lake Bracken
Compare lakeside cabins, hotels, and vacation rentals near Lake Bracken in Knox County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Bracken
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Fishing Lake Bracken
EPA Impairment Status
Lake Bracken is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit IL_SDZA · Official waterbody report
Nearby Lakes in Knox County
Frequently asked questions about Lake Bracken
Where is Lake Bracken?
- Lake Bracken is a lake in Knox County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Lake Bracken?
- Lake Bracken in Knox County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 33 ft. Surface area: 142 acres.
Is Lake Bracken safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Bracken is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pesticides. Check local advisories before you swim.
How deep is Lake Bracken?
- Lake Bracken has a maximum depth of 33 feet and an average depth of 17 feet. The lake covers 142 acres.
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Where this data comes from
Measurements for Lake Bracken come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database