Running 220V to workshop
If no box, you could leave the old line where it is or you can dig it up. Either way, you'll have to dig a trench for the new line.
As for the expense, the expense would depend on two factors: 1) the available slots in your current breaker and 2) whether your breaker is wired to handle the added amperage that the new circuit would draw. If you have additional slots in your breaker, and if your service is adequate to support he new circuit, then it should be a fairly affordable project. It would get more expensive if they need to replace or rewire the circuit breaker, or if you need to upgrade your service.
[This message has been edited by Lawrence (edited January 17, 2002).]