From Kovar (Shiraz) to the Persian Gulf Beaches; An Analysis of the Importance of Kovar Bridge and Bahman Dam Commerce in the Sassanid and the Beginning of Islam Periods

Throughout the period of Sassanids, as well as in the Islamic period, trade played a very important role in their economies and livelihoods. Meanwhile, due to political reasons in Late of Sassanid period, access to the Persian Gulf has been of particular importance. The city of Kuvar was part of the Fars province’s trade route because it led to the Persian Gulf on one side and to the central areas of the empire, for this reason, it has played a colorful role throughout history. Due to the presence of the riverside (Qara-aqag) near this city, the commercial convoys had to use a bridge to cross the river. In this study, attempts to by studying archaeological studies as well as library research investigate the water source of Kuvar city by, the role of Kuvar, bridge in connection with Persian Gulf as well as the etymology of city name. Bridge Kovar’s survival has been one of the possible caravans pass options. By examining the original geographical texts from the early centuries of Islam, as well as examining the current bridge structure, one can infer that this city had a very important role in establishing and sustaining trade from the Sassanid period to the Islamic period. Also, the durability and survival of this city has historically been dependent on water obtained from the Bahman Dam through specific facilities. Accordingly, in the present study, it has been attempted to explain how and these facilities function, as well as, in addition to Paul Kuvar’s ontology of construction technique and its application and performance, based on existing written sources, the landscape of the area has been reviewed and finally Evaluate the results, report the proposed chronology. This study attempts to answer the following questions: How is the main source of water in the city of Kuvar evaluated and what is the mechanism of water transfer to the city of Kuvar? How is the role of Kuvar city as a Midways on the route to the Persian Gulf and Siraf evaluated and the main evidence that what was the significance of the historic bridge of Kuvar?