Birkenhead photo tour
Visit Rendel Street and there is no problem whatsoever in locating the entrance to the tunnel!
Initially there was a T-junction with traffic signals underground where the branch met the main shaft. With rising traffic levels this became too dangerous. The Liverpool branch could be made an exit only, which solved the problem, but the Rendel Street branch approached from the other direction. A merge was deemed too dangerous and the branch has been disused ever since.