Constructed between 1808 to 1830, the arch bridges of Huế Imperial City across Ngự Hà River helped to regulate land traffic between the northern and southern banks of the river. Being fundamental components of Huế Imperial City, which itself formed part of the Complex of Huế Monuments, these bridges possess important historical-cultural and architectural values. Over time, architectural details and structural components of the bridges have deteriorated because of natural causes, wars, and among various urbanization factors, increased traffic flow. This chapter discusses the architectural and the structural engineering characteristics of the arch bridges and offers a load bearing analysis of the bridges based on existing traffic circulation in-and-out of Huế Imperial City. The analysis suggests that traffic flow volume will soon exceed the endurance capacity of the arch bridges if current traffic circulation persists. As the arch bridges are integral to traffic circulation in-and-out of Huế Imperial City, conservation efforts will require more than just architectural solutions for the preservation of the bridges. I suggest that by reorganizing traffic flow entering and exiting Huế Imperial City and within the city itself through a Circular Transport System, we should be able to drastically reduce the current level of stress on the load bearing capacity of each bridge. This adaptive conservation approach, coupled with the necessary architectural preservation solutions, will enable sustainable use of this set of historical-cultural architecture.