The pure lines of its arch and the narrow deck are two important elements in giving the least possible hold to the floodwaters of the Tarn. This type of construction has led to the bridge being called “the Roman bridge” in local tradition. However, it was not built before 1850. For the bridge we admire today to have withstood the passage of time and defied the floodwaters of the Tarn since the Roman era would be nothing short of a miracle.