Clearing under power lines on a Duke Energy easement in North Carolina

A Candler owner bought 9 acres with a Duke transmission line across the back third. The corridor is 8 years of locust, poplar, and blackberry. He wants a fence, a garden, and a pasture under the wires, and he has no idea who is supposed to cut what.

Duke owns the easement rights. You own the dirt. The rules sit in the recorded easement at the county deeds office, and in the documents Duke publishes for everyone else.

Who clears the trees under a Duke transmission line?

Duke does, on a multiyear cycle, and it removes anything that will grow into the wires. The Carolinas right-of-way use sheet puts the cycle at approximately every four to eight years depending on the area, clearing trees and plants that prevent access, endanger the lines, or grow taller than 12 or 15 feet at maturity. The transmission vegetation page states that a tree inside a transmission right of way that matures to a height greater than 15 feet gets evaluated for removal.

The reason is federal. Duke’s highest-voltage lines, up to 525,000 volts, must stay free of vegetation interference at all times, and a vegetation-caused outage on those lines can cost the utility up to 1 million dollars a day in fines. That fine is why the corridor gets cleared whether you asked or not.

Notice comes before the crew. In maintained areas Duke notifies owners at least three days ahead in North Carolina, by door hanger, call, letter, or a visit. If notification fails, work proceeds as planned. Duke also holds the right to take down trees outside the corridor that threaten the line, live or dead. In wood lots and natural areas the cut material stays where it falls. In lawns and pastures small brush is disposed of and larger wood is cut to 18 to 24 inch lengths and left on site.

Distribution lines, the 30 to 40 foot wooden poles running the road, get the same treatment on a reliability-driven schedule. Transmission structures are the lattice towers, H-frames, and monopoles, typically over 60 feet tall. That height tells you which page of Duke’s rules applies to your corridor.

What may a landowner do in the right of way?

Farm it, graze it, park on it, store movable things on it for a while, and cross it with a driveway. Those are the uses Duke lists on its Carolinas use sheet. Anything built needs a paper trail.

Fences and parking lots may go in with prior written approval from an Asset Protection encroachment representative. A fence must be grounded and must include a 16-foot-wide gate so crews can bring equipment in. Low-growing shrubs, hedges, flowers, and grasses may be planted with approval. What is banned outright is anything that lives underground and can’t be moved: septic tanks and drain fields, wells, burial grounds, and similar structures.

The Candler pasture works. The fence works with a 16-ft gate and a signature. The garden works if it stays low. The septic field goes somewhere else on the 9 acres, which changes the house plan more than any other rule on this page.

Mowing and mulching the corridor yourself is fine, and it’s the normal way to keep a pasture under the wires. Duke’s FAQ says rights of way in unmaintained areas are initially mowed and then followed with herbicide on woody regrowth, targeting tall-growing species and sparing compatible low plants. Right-of-way and fence line mulching is the same job on a private schedule.

How do you ask Duke to trim or remove a tree?

Through the tree trimming request page, after confirming the tree affects a primary line. If it does, a vegetation management representative follows up within 10 business days and the request status arrives by text, email, or voice.

The service line is the exception. The wire from the pole to your meter is the owner’s responsibility to keep clear. If you or a contractor plan work around it, Duke will de-energize it at no cost before the cut. If a tree is bearing on the service line, submit the request and let a representative evaluate it.

Fallen trees on lines are an emergency call, and downed lines are assumed energized on the ground and in the air. Storm debris is the owner’s problem once the line is clear. Duke states it doesn’t clean up tree debris from severe weather. After Helene that sentence covered a lot of WNC corridors, and it’s why a mulcher on the easement has been a common call in Swannanoa, NC for two years.

What does NC 811 require before you dig near the poles?

Notice to NC 811 within 3 to 12 full working days before the start date, for any excavation. A working day excludes Saturdays, Sundays, and state and federal holidays. Operators respond through the Positive Response system within 3 full working days. The ticket is good for 15 working days starting the day after notice, and if the job runs longer you update it by the 12th working day to keep continuous coverage. Notice can’t be filed more than 12 working days ahead.

The tolerance zone is 24 inches on each side of a marked facility plus half its diameter. Inside that zone the manual calls for hand tools or vacuum excavation until the line is exposed, no picks or mattocks, shovel blade turned toward the side of the facility. Depth is never guaranteed and isn’t marked. If the site can’t be described on the ticket, premark it with white paint, flags, or stakes. Marks stay for the 15 working days of the ticket.

Mulching the surface without breaking ground isn’t excavation. Post holes, stump pulls, and a driveway cut across the easement are. On the Candler lot the fence posts need a ticket. The mulch pass doesn’t. Fence line and boundary clearing covers the fence build.

What is the safety picture under the wires?

Only line-clearance qualified personnel take down trees near power lines, and Duke states that serious injuries and fatalities have followed when untrained people tried it. OSHA rules and ANSI Z133 keep an unqualified person at least 10 feet from overhead lines below 50,000 volts, with the distance growing at higher voltages. A transmission corridor is higher voltage. A mulcher boom, a bucket, or a felled poplar inside that distance is the accident.

The corridor itself is the safest place to run a machine, because the wires are high and the ground is open. The edges are where a leaning tree reaches the line. Anything that could fall into the wires belongs to Duke’s crew or to a line-clearance contractor, and the request page is the way to get it scheduled. Everything under the browse line belongs to your mower or a right-of-way and fence line clearing pass.

The state erosion rules still apply on the easement. Mulch that leaves the root mat in place is normally not land-disturbing activity, and the Sedimentation Pollution Control Act plan trigger is 1 acre of disturbance filed 30 days ahead. Grade a crossing and the trigger is live. Do you need a permit to clear land covers the county layer.

A Candler, NC walk-through under a transmission line starts with the recorded easement, then the tallest stem, then where the fence gate goes. Forestry mulching handles the corridor. Brush clearing keeps it a pasture. See more in the guides library.