There is very little of this left in Middle Tennessee. Of interest is the top circuit, which carried 2,400 volts for railway signal power. Some rare-ish insulators have been recovered off these types of lines. All that's left nowadays is common CD 145, 152,154,155, and 214s... Even in the early nineties, this line was well-populated. The tracks below are Norfolk-Southern owned, joint co-opped with CSX.