early 1904 only the Royal Albert Bridge and a section of about five miles from there to St Germans remained single. Similar work was being undertaken on the line of the former West Cornwall Railway, the route from Plymouth to Penzance now being treated as a unit. The Saltash to St Germans section was by-passed by an inland deviation which was opened for goods trains on 23 March 1908 and for passenger trains on 19 May; the former route section was then closed and abandoned. This left only the Royal Albert Bridge as the only single line section on the main line to Truro (Penwithers Junction). The Falmouth branch was never doubled. Following the amalgamation, plans were put in place for the gauge conversion, which took place over the weekend of 21 May 1892. The replacement of the timber viaducts, started by the Cornwall Railway itself and then suspended, was resumed and between 1896 and 1904 all the remaining timber viaducts on the Plymouth to Truro line were replaced by masonry, or masonry and iron, structures. However, the structures on the lightly trafficked Falmouth branch continued for some years, finally being replaced by 1927. Remaining Cornwall Railway structures Of the structures built by the Cornwall Railway, the most impressive is the Royal Albert Bridge, still fully operational. Many of the piers of Brunel's original timber viaducts remain today, having been left in place when the replacement viaduct was built alongside. The original viaducts are fully discussed in the article Cornwall Railway viaducts. Many smaller masonry bridges, and the stations at Liskeard and St Germans remain in use. The stations standing at Par and Saltash were also built by the Cornwall Railway, although these were later constructions. The footbridge at St Austell is a rare example of a Great Western Railway footbridge that still retains a roof. On the Falmouth extension there is an original goods shed at Perranwell and a group of 20 workers' cottages at Falmouth. Branches Apart from a short branch at Keyham opened on 20 June 1867 to serve the naval dockyards, no branches were ever built by the Cornwall Railway. Independent railways did however form junctions: the West Cornwall Railway to Penzance (1859), Lostwithiel and Fowey Railway (1869), and the Newquay and Cornwall Junction Railway (1869). Other independent lines were proposed but failed during the economic depression following the collapse of the Overend, Gurney and Company