Before 1965, Long Dai Ferry Terminal was located on National Route 15A (now the Eastern Branch of the Ho Chi Minh Highway), managed by the Quang Binh Department of Transport. The ferry terminal was located in Long Dai village, Hien Ninh commune (North bank) and Xuan Duc village, Xuan Ninh commune (South bank), Quang Ninh district, Quang Binh province (now partly belonging to Truong Ninh commune after administrative merger). Its strategic location at Km 1004 + 810 made this place an important river crossing point on the Truong Son – Ho Chi Minh Trail.
When the US escalated bombings in the North (from 1965), the ferry terminal became a key target. It was handed over to the Quang Binh Provincial Military Command, later belonging to Group 500 of the General Department of Logistics. The C16 Engineering Unit (Station 16) stuck to the post day and night, repairing pontoon bridges, ensuring smooth traffic to supply weapons, food, and troops to the South. This unit was awarded the title of Hero of the People's Armed Forces in 1969. Both riverbanks were densely packed with anti-aircraft battlefields. Soldiers, militia, youth volunteers, and frontline laborers fought bravely under the slogan “All for the front line! All for our beloved South!”. Many soldiers fell, but the ferry terminal remained open, making an important contribution to the nation's overall victory.




