The 441-910 with the Zagreb-Ploče fast train on the great horseshoe viaduct 409 metres above sea level

The train arrives at this viaduct after leaving a tunnel and contnues into another one as it passes from one side of the Trešanica valley to the other. The tracks will follow the main road below till Konjic station. The railway was designed for relatively high speeds, therefore parts of the loop had to be built in tunnel.