Complex sentence: The platform no longer existed, however, the concrete lamp holder was still in place, and the waiting shelter had been moved on to a nearby farm, although in a poor state, was in use as a small storage shed.
Split into simpler sentences: The platform no longer existed, however, one concrete lamp holder was still in place, and the waiting shelter had been moved on to a nearby farm. Although it was in a poor state, it was in use as a small storage shed.