Corinth Lake
Grant County, Kentucky96 acresView mapDirections
Kentucky DOW publishes the water-quality measurements for Corinth Lake. Here is what has been measured.
- Eutrophic
- Impaired · Mercury
- Public access
Corinth Lake in Grant County, Kentucky has water-quality measurements published by Kentucky DOW, shown here as reported. Phosphorus: 30 µg/L. Surface area: 95.5 acres.
Corinth Lake is a 96-acre productive, nutrient-rich eutrophic lake in Grant County, Kentucky. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Grant County, Corinth Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, KY DOW, last sampled 2022-09-07. Methodology: how these readings are compared.
Corinth Lake covers about 96 acres in Grant County. It has one public boat landing. Vrbo is where to look for cabins and lake homes around Corinth Lake, and Booking.com and Expedia search hotels near the lake for your dates.
What Corinth Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyModerate algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Corinth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Corinth Lake is safe to swim in today is a call for the Kentucky Division of Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Corinth Lake
These are the measurements Kentucky DOW publishes for Corinth Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 30 µg/L. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 30µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Corinth Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
96 acres
Public access
Yes
Listed by Kentucky DOW
No bathymetric survey has been published for Corinth Lake, so its depth is not documented here.
Recreation & Access
- Corinth LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Corinth Lake
Compare lakeside cabins, hotels, and vacation rentals near Corinth Lake in Grant County, Kentucky — 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 Corinth Lake
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Fishing Corinth Lake
Water Quality Trend: Worsening
Based on 4 years of monitoring (2013–2022).
Phosphorus
Worsening+2.72 µg/L/yr4 years
Reservoir Info (USACE NID)
Corinth Lake is a man-made reservoir impounded by the Corinth Lake Dam (completed 1962), built primarily for recreation on the Eagle Creek; earth-type dam, 67 ft tall and 1,100 ft long.
- Surface area
- 95.5 ac
- Normal storage
- 1,612.5 ac-ft
- Max storage
- 3,300 ac-ft
- Drainage area
- 1.2 sq mi
- Hazard class
- High
- Owner
- KENTUCKY TRANSPORTATION CABINET
Source: USACE National Inventory of Dams, NID ID KY00051 · Operator website
EPA Impairment Status
Corinth Lake 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: Aquatic life, Fish consumption.
Source: EPA ATTAINS assessment unit KY-34 · Official waterbody report
Nearby Lakes in Grant County
Frequently asked questions about Corinth Lake
Where is Corinth Lake?
- Corinth Lake is a lake in Grant County, Kentucky. Its water-quality measurements are published by Kentucky DOW and shown on this page as reported.
What is the water quality of Corinth Lake?
- Corinth Lake in Grant County, Kentucky has water-quality measurements published by Kentucky DOW, shown here as reported. Phosphorus: 30 µg/L. Surface area: 95.5 acres.
Is Corinth Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Corinth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Are there boat ramps on Corinth Lake?
- Corinth Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Corinth Lake. Public access is listed as yes.
Can I fish at Corinth Lake?
- Corinth Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Kentucky's fish and wildlife agency, so check its current regulations before you go.
Explore Corinth Lake across LakeQuality
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Where this data comes from
22 measurements from 2 monitoring stations, 2013–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- KY WQX
21KY_WQX22 samples · 2013–2022
Analytical methods
- Phosphorus by Colorimetry
- Total Phosphorus After Block Digestion
- Turbidity by Nephelometry
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory