1910 diagram showing the mainland portions (centre)
1914 diagram showing the Isle of Wight portion (upper right)
Railway Clearing House Junction Diagrams showing the Portsmouth and Ryde Joint Railway (blue/green dashes) and connecting lines
The Portsmouth and Ryde Joint Railway was a group of three railway lines in Southern England that were jointly owned and operated by the London and South Western Railway and the London, Brighton and South Coast Railway. The main line was between Cosham and Portsmouth Harbour; there was a branch from Fratton to East Southsea; and a line between Ryde Pier Head and Ryde St John's Road. The last-named section was isolated from the others, being on the Isle of Wight. The first section of line opened in 1847 and the last in 1885; the Southsea branch closed in 1914 but all of the other routes have since been electrified and remain open.