Where does Corps land end?
At the government line. On Hartwell it was set using the 670 ft (msl) elevation and runs in straight lines from pin to pin, so it doesn’t trace the water’s edge.
Hartwell has about 962 miles of shoreline, and that line runs behind lakefront lots in Seneca, Clemson, Fair Play and Townville. Between the line and the water is public land, whatever the lawn looks like.
Can a fence go on Corps land?
No, not without a permit. Hartwell’s Shoreline Management Plan (2020), Sec. 20.b, calls any activity on public land without one a trespass or encroachment, and its examples include dog pens and decks.
The plan also bans items that suggest private ownership of public land, invisible dog fences included. And it closes the obvious loophole: “absence of a prohibition does not equate to authority.” If the plan doesn’t mention something, that is not permission.
How do you find the line?
The plan puts that on the owner. Sec. 20.a says you find your own property line, and that painted trees don’t mark it exactly.
- Find the pins. The line runs straight between them, so a string or a laser from pin to pin shows where it falls.
- Don’t go by paint. Painted trees show roughly where the line is, not exactly.
- Get a survey if the pins are gone. National cost guides put a boundary survey at roughly $200 to $1,000.
- Call the lake office at 706-856-0300 with questions about the line or a permit.
Building a fence on a property line in SC covers surveys and corner pins in more detail.
Which county’s rules apply?
The county your shore is in. On the South Carolina side the lake touches Oconee, Pickens and Anderson counties, and each has its own rules back from the Corps line.
- Oconee County. A fence may stand in any setback as long as it stays on your property. Inside the City of Seneca, the city’s rules apply instead; fence installation in Seneca covers them.
- Pickens County. Sec. 410 sets a 50-ft setback from full pool with no impervious surface. Inside Clemson, the city’s own code applies; see Clemson’s fence rules.
- Anderson County. The building codes page lists a Pool Fence Affidavit; the office is at 864-260-4158. Anderson also had the state’s highest 2024 deer harvest, 22.7 per square mile, worth knowing before you plant a garden by the lake.
What fence works on a Hartwell lot?
One that stops at your line. A 4 ft black coated chain link dog yard runs about $16–23 a foot, and 4 ft aluminum about $30–42 a foot, both on your side of the government line.
Chain link fence compares galvanized and black coated mesh for a dog yard. An invisible dog fence is fine on your own land, as long as no part of it crosses onto Corps land. If the lot has a pool, the barrier has to meet the state pool code: at least 48 inches tall, with gates that close and latch on their own. South Carolina’s pool fence rules cover the rest, and in Anderson County, ask about the affidavit before the fence goes up.
