The other branch deviating from Gillman Junction, known as the Rosewater Loop, was part of the through-line for freight to Pelican Point before the completion of the Mary MacKillop Bridge in 2008; the Rosewater Loop has been disused ever since. From Gillman Junction, line curves south-west through the suburbs of Ottoway and Rosewater to join Adelaide Metro's suburban line to Outer Harbor at Port Adelaide Junction ('A' Cabin), just north of Alberton. Trains on this route continued along Adelaide Metro tracks over the Port Adelaide Viaduct and through the stations at Port Adelaide and Ethelton before branching off just south of Glanville station. After branching at Glanville, the route followed the southern side of Semaphore Road where it joined the current route to Pelican Point just north of the Mary MacKillop Bridge; this section was known as the Birkenhead Loop and was closed and pulled up in 2008 with the completion of the Mary MacKillop Bridge.