Cua Luc 3 bridge project has a total length of 2,847km. The starting point connects with Cao Xanh - Ha Khanh sea-bound route (the main road in the planning of FLC Tropical City Ha Long urban area, Ha Khanh ward, Ha Long city); the ending point connects with National Road 279 at Km16 + 740 in Thong Nhat commune, Hoanh Bo (former).