Hi Drew, I did just what you're asking about, for the same reason, I had a splice plate joining two pieces of subroadbed in the way, I used rectangular telescoping brass tubing to extend the throwbar, you can go any lenght you need to. I mounted mine above rather than below, as it will be covered by a street anyway and it was easier. I use 1/2" homasote here, so I was able to just notch it for the tubing. The Tortoise is below the end of the tubing, you can see the wire end protruding just a bit. The second photo shows the Tortoise below the roadbed, and the toggle I use to throw the turnout. I read in your other thread that you plan to use DCC to throw your turnouts, while I was an early convert to DCC I don't use it for my turnouts. For anyone else interested, although 2 position toggles are all that is needed to throw turnouts, I use center offs. Reason being it makes it easier to adjust the machine for good throw in both directions. Holding the Tortoise with one hand, I throw the toggle back and forth till I'm happy with the Tortoise position. I then put the toggle in center off, because I've had trouble keeping the Tortoise in place when it is under power, the torque is significant. I can drive screws to hold the Tortoise easily with power off, and never have to let go of the Tortoise as I can throw the toggle with my free hand.