Horsepower-Limited Lakes in Ohio
4 lakes · every row cited to an official source
Quick answer
Ohio has 4 lakes in our database with a horsepower cap (limits on file: 10 hp). The rated horsepower on your motor's plate is what counts — not how slowly you drive. Each lake below shows its exact cap and links to the official rule.
Horsepower caps keep big water manageable: small tiller outboards are fine, bass-boat power is not. The common portable sizes — 2.5, 4, 6, and 9.9 hp — fit under a typical 10 hp cap, which is why 9.9 hp motors exist at all. Two things to watch: the cap applies to the motor's rated horsepower even at idle on most waters, and PWC are effectively excluded because their engines far exceed low caps. Check each lake's page for the exact number and wake rules, and run your own motor through the motor check tool.
Horsepower-Limited Lakes in Ohio: the list
| Lake | Motor rule | HP limit | County | Verified |
|---|---|---|---|---|
| Cowan Lake | 10 HP limit | 10 | Clinton | |
| Guilford Lake | 10 HP limit | 10 | Columbiana | |
| Lake Logan | 10 HP limit | 10 | Hocking | |
| Wolf Run Lake | 10 HP limit | 10 | Noble |
Frequently asked questions
Can I idle a bigger motor on a horsepower-limited lake?
Usually no. Most agencies cap the rated horsepower of the motor on the transom, not your speed — a 40 hp outboard at idle is still a 40 hp outboard. A few states differ, so check the lake's official source.
Is a 9.9 hp motor legal on a 10 hp lake?
Yes — that is exactly why manufacturers sell 9.9 hp models. The plate rating (9.9) is under the cap (10). Bring documentation if your motor's plate is worn or missing.