Bridges narrow or confine stream/river channels not allowing lateral movement which is natural for flowing water bodies. This allows the river to incut degrading stream banks and deepening channels...
Siberia and Alaska
The height of the bridge at Newtown Road, Ashford is 9'9". Yes, that is NINE FEET, NINE INCHES. Be careful !!
Beringia
It's called the Bering Strait and it still exists today in certain seasons.