The French port of Saint-Goustan is a former fishing port and trading centre situated beside the river Auray (or river Loc'h.) In modern times it has become one of the quarters of the commune of Auray in the department of Morbihan in Brittany.
In the early 17th century, the town of Auray decided to build a port on the left bank of the Loc'h. Quays and ramps were constructed to allow for the unloading of trade ships where previously vessels had used cruder pontoon structures to dock at the side of the river.
An examination of port taxation in 1537 illustrates the commercial activity in Saint-Goustan. The city imports wine, salt, leather, iron and Biscay steel. Conversely, wheat, rye, oats, butter, meat, fish, cloth and fabric are exported. The Auray region was a surplus producer of grain at that time.
The development of the larger Auray port in 1641 was completed with the construction of a wharf and two ramps between the old pier which had been built in 1615. This work included the place Saint-Sauveur and continued south to the construction of the current Franklin dock. The stone moorings were placed in 1692.
The creation of the Lorient port (1665–1670) and the lack of major roads connecting Saint-Goustan to the hinterland were the cause of a decline in activity in the port. This further decreased with the arrival of the railway and the creation, in 1865, of a new road to Auray which isolated the port and further reduced its trade. The only activity on the Franklin wharf in the early 20th century was the transport of wooden beams for coal mines in Wales.
The name of this wharf is a tribute to Benjamin Franklin, the famous diplomat, physicist and engineer who landed at Auray on 3 December 1776 to ask for French aid in the War of Independence. The port, dates back much further, however, to at least the 12th century.
Work began on the dock in 1614 and was extended in 1630. Around 1680, the dock in front of the place Saint-Sauveur was extended further and repaired in 1742. In 1791 it required further repairs which took place from June 1846 to the end of 1852. The quay pavement dates from this time.