on the bridge; bridge-top
Refers to the area on or above a bridge. Often used in compound nouns like 橋上駅 (station built above a bridge) or in phrases such as 橋上から見る (view from the bridge).
I gazed at the river's flow from the bridge.
This station has a bridge-top station building.
elevated station; over-track station
Compound of 橋 (bridge) and 上 (above/on). The reading きょうじょう is the on'yomi combination.