A first Roman bridge from wood existed from 17 BC. The first stone bridge was built 45 ad, a bit downstream from the present site of the Roman bridge, as research has shown. One can see part of the pillars at low tide. The pillars of the present stone bridge were built anno 144-152, making it the oldest bridge in Germany. The new bridge is the third bridge at this point since the city was founded. With the help of waterproof retaining walls, the pillar with basalt and blue stone cubes were secured on the river bottom and are deeply embedded in the bedrock underneath the river gravel. They were built with huge stone blocks held together with iron clamps as in the Porta Nigra (the Roman clamps are invisible inside the pilings; the visible clamps are from later times). The building materials came from the mining area around the former volcano “Hohe Buche”. The bridge has upstream pointed pillar to withstand flooding and ice. On the massive pillars a wooden bridge a so-called strut frame was built in Roman times, this could withstand the traffic through a ten meter wide roadway, but as it was about 14 m above the Moselle at normal levels, the masts of the ships had to be folded when they sailed down the River. Upstream, they had to be opened due to the strong current. On March 2, 1945, General Patton's tanks captured the bridge so quickly that it was not blown up - the (empty) charge chambers are still visible from the up-river side of the bridge.
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