East Fork Lake
Info / Richland County
Family Friendly
No
Handicap Access
Yes
Boat Fishing
Yes - Unrestricted
Boat Ramps
Yes
Boat Rentals
Yes - Kayak rentals available at boat launch
Camping
No
Picnicking
Yes - More Info
Skiing
Yes
Swimming
Yes - Swimming from boats is allowed in the no wake zone adjacent to St. Marie Road.
Trout Stocking
No
Zebra Mussels
None
Location 935 acres
Fishing Outlook
Bluegill
Average
Bluegill were not sampled in the 2025 survey. However, trend data suggests that Bluegill fishing will remain good in 2026, despite their overall size structure being hindered by the dense Gizzard Shad population, with most fish 5” – 7” in length and weighing 0.10 – 0.25 pounds.
Channel Catfish
Improving
Channel Catfish numbers have improved in recent years due to stocking efforts, but overall numbers remain low in East Fork Lake. Average body condition declined to the minimum target at Wr=90. Unfortunately, the sample collected in 2025 was dominated by larger fish and many were bigger than most anglers would prefer to harvest, but recent stockings should provide smaller fish for harvest in the coming seasons. Most fish in 2026 will range from 18” – 25” and 2 – 5 pounds, with larger fish approaching 8 pounds.
Walleye
Good
The size structure of the Walleye population remained fair to good in the 2025 surveys and was comprised primarily of larger fish. Average body condition was much higher for Walleye sampled in the spring (Wr=99), than it was for fish collected in the fall (Wr=80). Approximately 86% of the adult fish collected exceeded the 14” minimum length limit. No Walleye were stocked in 2023, but despite this missing year class, East Fork Lake should provide good fishing opportunities in 2026. Most legal Walleye in 2026 should range from 18” – 25” and weigh 2 – 5 pounds.
Largemouth Bass
Good
The size structure of the Largemouth Bass population in 2025 remained consistent with four-year trends. The 2024 survey showed a 30% increase in the percentage of bass in the 12” – 15” size class and a 17% decrease in the percentage of fish in the 15” – 20” size class from the 2023 survey. In 2025, the percentage of adult Largemouth Bass in the 12” – 15” range decreased by 38% and the percentage of fish in the 15” – 20” size range increased by 25%. Approximately 31% of the adult bass collected in 2025 were longer than the 15” minimum length limit. Average body condition for the population decreased to the lake management plan’s minimum target (Wr=90). However, as expected in a lake with a Gizzard Shad forage base, Largemouth Bass longer than 15” were in much better condition than smaller bass. Fishing prospects for the coming year should be good with most keeper bass ranging from 15” – 20” in length and weighing between 1.7 – 4.3 pounds, with a few larger fish over 6 pounds.
Crappie spp.
Good
Black Crappie were more numerous than White Crappie in the 2025 surveys, but the White Crappie sample had a more desirable size structure. Average body condition for both species was below target with White Crappie Wr=82 and Black Crappie Wr=88. Approximately 60% of the adult White Crappie and 18% of adult Black Crappie were longer than 9”, while 27% of White Crappie and only 2% of Black Crappie were longer than 10”. Based on the data from the 2025 surveys, most White Crappie caught in 2026 will be in the 8” – 11” range and weigh 0.22 – 0.63 pounds, although smaller fish are likely to also be prevalent. Black Crappie in 2026 are likely to range from 6” – 10” and weigh 0.10 – 0.45 pounds.
| 2025 | Channel Catfish | Advanced Fingerling (4 - 7") | 20000 |
| 2025 | Walleye | Fingerling (1 - 3") | 53983 |
| 2024 | Walleye | Fingerling (1 - 3") | 32816 |
Contact
618-393-2130
Description
East Fork Lake was constructed by the City of Olney in 1971 to serve as a water supply reservoir. The lake has a surface area of 935 acres, a maximum depth of 40 feet, and a mean depth of 15 feet. The lake has 25 miles of shoreline and a watershed of 9,982 acres.Fishery History
The sport fish population in East Fork Lake is comprised primarily of Largemouth Bass, Bluegill, Redear Sunfish, White and Black Crappie, Channel Catfish, and is stocked annually with Walleye. The lake also contains Common Carp, Bowfin, and large Yellow Bullhead. The fish population is surveyed annually.Site Regulations
Annual City of Olney Boat Stickers and Tournament Permits are Required. Boat stickers are available at Olney City Hall and local bait shops. Tournament permits are available at Olney City Hall.
Site-Specific Fishing Regulations:
- All Fish: 2 pole and line fishing only and each pole must not have more than 2 hooks or lures attached while fishing
- Bluegill or Redear Sunfish: 25 Fish Daily Harvest Limit
- Channel Catfish: 6 Fish Daily Harvest Limit
- Large or Smallmouth Bass: 15 inch Minimum Length Limit; 6 Fish Daily Harvest Limit
- White, Black or Hybrid Crappie: 25 Fish Daily Harvest Limit
Additional Information
Planning to eat your catch? Fish Consumption Advisory information can be found here: Fish Consumption Advisory Page
An invasive aquatic plant species called Curly-leaf Pondweed (Potamogeton crispus) has been becoming more prevalent in East Fork Lake in recent years. This plant begins growing in the winter, becomes very dense in late-spring to early-summer, and then dies off in mid-summer. It displaces native species of vegetation and can spread very easily from small leaf fragments. This invasive plant will likely continue to spread in East Fork Lake and may contribute to size structure declines for many species of fish. The very dense stands of Curly-leaf Pondweed are difficult for many fish to effectively feed in. Likewise, fish also struggle with feeding and habitat loss when the plants die off in the summer. The primary purpose of East Fork Lake is to serve as a drinking water supply and most herbicide applications to treat Curly-leaf Pondweed are prohibited or not feasible. Please wash and dry your boats, trailers, and fishing equipment after visiting East Fork Lake. Curly-leaf Pondweed is difficult and expensive to control, and small pieces/leaf fragments can spread this highly invasive plant to other lakes.