The Roman bridge at Trier.
Treverorum: Roman city, modern Trier.
Trier rose to prominence when the Roman
built the road from Lyon to Cologne,
and a bridge had to be constructed near the place where the Saar
in the Moselle. There is a dendrochonological
date of 17 BCE for one of the pieces of wood of the bridge. The
monument was rebuilt several rchronological dates 71, 144, and
It is still in use, as this satellite photo shows.
A couple of things have changed, however. Today, the bridge has
six arches, but we know that there must have been at least one arch
more in the west, and three in the east, bringing the grand total up to
ten. The superstructure, now made of stone, was once made of wood. The
second photo shows, immediately below the modern arch of brick, a
ledge; a similar row of these stones can be seen on the photo to the
left. This was the support of the wooden arch.