 The heavily engineered line entered the Elm Grove area on a three-arch viaduct across Hartington Road, then passed through a deep cutting, entered the -long Kemp Town Tunnel under Elm Grove School and emerged from the tunnel at the terminus on Eastern Road.The tunnel has been blocked up (and was briefly used as a mushroom farm) and the cutting filled in and grassed over to form William Clarke Park.A landscaped area behind the school occupies the site of the northern portal.