godan verb (-su), transitive verb
build a bridge over; span; lay across
Used specifically for constructing a bridge or similar structure across a river, valley, or gap. The object is the thing being spanned, not the bridge itself.
川に橋を架け渡す。
Build a bridge over the river.
谷に吊り橋を架け渡す計画が
There is a plan to span the valley with a suspension bridge.