Aesepus Bridge

The Aesepus Bridge was a late antique Roman bridge over the Aesepus river in the ancient region of Mysia in modern-day Turkey. It is notable for its advanced hollow chamber system which has also been employed in other Roman bridges in the region, such as the Makestos Bridge. In a field examination carried out in the early 20th century, the four main vaults of the bridge were found in ruins, while nearly all piers and the seven minor arches had still remained intact. Today, the two remaining pier stubs in the riverbed are still extant, while the condition of the rest of the structure is difficult to determine.
The Aesepus Bridge is located in northwestern Turkey, 8 km north of Sariköy as the crow flies, approximately 5.6 km upstream of where the Gönen Çayı flows into the Sea of Marmara, slightly above the point where the narrow river valley opens into the wide estuary plain and a modern bridge carries the highway 200 across the Gönen Çayı. The Aesepus Bridge was part of a Roman road, which in ancient times led across Mysia to the coastal town of Cyzicus, and which, having preserved some of its original Roman paving of 13–15 cm deep small round stones, was in the 19th century still the preferred route for travelling between close-by Bandırma and Boghashehr.

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