From then on, many heavy trains could be pulled over the route once the tracks and civil engineering structures had been upgraded for the increased axle weights, including the Trisanna bridge at Wiesberg Castle in 1964.
Many heavy trains could be pulled over the route. This was from then on. The tracks had been upgraded for the increased axle weights. This was including the Trisanna bridge at Wiesberg Castle in 1964. Civil engineering structures had been upgraded for the increased axle weights. This was including the Trisanna bridge at Wiesberg Castle in 1964.