At Rimini, the starting point of the Via Aemilia, the road's first bridge still exists, a massive structure spanning the Marecchia River, started by the Emperor Augustus and completed by his successor Tiberius. It still bears its twin dedicatory inscriptions. At Bologna, milestone 78 was found in the bed of the river Reno. It records Augustus' reconstruction of the Aemilia, in 2 BC, from Rimini as far as the river Trebbia. Remains of the Aemilia bridge over the Reno were found in the 1890s, consisting of parts of the parapets from each side. These were originally 38.75 feet apart, of Veronese red marble. The bed of the river was found to have risen at least 20 feet since this bridge collapsed in the 9th century.[4] Ruins of some of the other ancient Roman bridges still exist. At Savignano sul Rubicone a Roman bridge survived until it was demolished as recently as World War II. The current bridge is a reconstruction.