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Lake Information

County: Washington

Acreage: 301

Average Depth: 18.24 feet

Shoreline Length: 14.6 miles

Recreational Amenities

Boat Fishing? 10hp

Boat Ramps? Yes

Boat Rental? Yes

Skiing? No

Swimming? No

Picnicking? Yes

Camping? Yes

larger map link North End Dam

    Click on area names for a more detailed map.
    Dam, North End

Maps are not intended for navigation.

There are no zebra mussels in this lake.





Count or Weight

Lake Status Summary  ( Full PDF Report )

Click here for a list of all reports.



Fish Status



The bluegill sunfish population is poor. Bluegill are stunted and overabundant. No bluegill over 7 inches were collected in the 2016 survey.



The channel catfish population is excellent. IDNR stocks this lake annually with channel catfish. Sixteen channel catfish (14-25 inches) were collected in the 2016 survey. Site Regulation: 6 fish daily limit.



No white crappie were collected in the 2016 survey. Ten black crappie (5-15 inches) were collected in the 2016 survey. 30% of the black crappie were over 10 inches.



The largemouth bass population in this lake is excellent. During the 2016 fall electrofishing sample, of the 98 bass collected, 60% were over 15 inches, 45% were over 16 inches, and 20% were over 18 inches. A new bass regulation went into effect on April 1, 2016. The goal of the new bass regulation is to increase the overall number of bass in the lake, as well as the number of bass greater than 14 inches in the lake.Site Regulation: 2 fish under 14" and 1 fish over 18" daily limit, 14 – 18" protected slot.

Location: Washington County Conservation Area is located 4 miles south of Nashville on Route 127.

Description: This scenic 248-acre lake contains a good percentage of woody habitats, which is great for attracting and holding fish. There is a concrete boat ramp and plenty of parking in the blacktopped parking lot. There is also a gravel boat ramp for small watercraft. Shore angler access is available at many areas around the lake and there is a 10 hp limit for boat motors.

History and Status of the Sport Fishery: The IDNR Division of Fisheries has been active in the management of Washington County Lake since it opened in 1962. The lake receives annual stockings of channel catfish.

Additional Lake Information: There is a 10hp limit for boat motors. 2 pole and line fishing only. Swimming, wading, and waterskiing are prohibited. The concession offers boat rental, bait and tackle. A map of the 11 Washington County State Lake fish attractor locations can be obtained via email by sending a request to

Site Regulations:
Largemouth bass: 2 fish under 14" and 1 fish over 18" daily limit, 14 – 18" protected slot
Channel catfish: 6 fish daily limit
Striped, white or hybrid bass: 3 fish daily limit

Contact Information:
Washington County Conservation Area
IDNR Fisheries Biologist, Eric Ratcliff

There were 18 tournaments held on this waterbody in 2018.

Species Total Fish Caught
Largemouth Bass 524

Top 5 Largemouth Bass caught on this waterbody in 2018 tournaments:

1     5.59 lbs
2     5.38 lbs
3     4.96 lbs
4     4.19 lbs
5     3.89 lbs

Top 5 Bag Weights of Largemouth Bass caught on this waterbody in 2018 tournaments:

1 132.66 lbs
2 108.44 lbs
3 98.44 lbs
4 80.05 lbs
5 76.88 lbs

Multiple day tournaments are listed with *end date and

Interested in participating in one of these public tournaments? Contact us with tournament ID for more information.

2019-2020 Approved or Pending Tournaments
Start Date ID Approval Ramp Location Bank/Boat
Max Boats Species Youth? Open to Public?
April-0415660PendingWashington County SRA boat
20Largemouth Bass
May-0914795ApprovedWashington County SRA boat
30Largemouth Bass
Smallmouth Bass
June-1415640PendingWashington County SRA boat
20Largemouth Bass
June-2714839ApprovedWashington County SRA boat
15Largemouth Bass
August-2314302ApprovedWashington County SRA boat
20Largemouth Bass