railroad bridge; railway bridge
A bridge specifically built for trains. A straightforward compound of 鉄道 (railroad) and 橋 (bridge).
この鉄道橋は100年以上前に建設された。
This railroad bridge was built over 100 years ago.
川にかかる鉄道橋を列車が渡っていく。
The train crosses the railroad bridge over the river.