What is a blanket easement?

Blanket easements are common in older rural grants, where a cooperative was given the right to build lines across a farm without anyone surveying a corridor first. The document names the whole parcel, not a width and centerline.

In most states, once the holder actually installs facilities, the easement is treated as fixed at that location and the blanket effectively shrinks to the built corridor. That doctrine helps, but it is a rule of interpretation, not a recorded description, so the title exception still reads as a blanket.

For a buyer or a lender, that is the practical problem: a blanket exception makes it hard to prove where you may safely build. The fix is a recorded amendment describing the actual corridor, which utilities will often sign once the lines are in and located.

What this looks like in practice

Blanket easements turn up most often on rural acreage and on older lots outside platted subdivisions. The title commitment lists an exception with no width, no route and no exhibit, and a buyer planning a barn suddenly cannot prove where it is safe to build.

In practice, once poles or pipe are in the ground, most states treat the corridor as fixed at the built location. Lenders and insurers still want that in writing, and the useful negotiating moment is before closing, while the seller still has an incentive to chase the utility for an amendment.