Therefore, the Yura-gawa River bridge that had been destroyed many times was replaced with a reinforced concrete one in 1973 and the tramroads were improved, for example, by replacing some of the tramroad ties with those of concrete.
そのため、1973年にたびたび水害で流されてきた由良川橋梁を鉄筋コンクリート製の橋に架け替えたほか、枕木を一部コンクリート製のものにするなど軌道の整備が行われた。