The tunnel is placed in NH1 passing over Deo Ngang on the boundary of Ha tinh and Quang Binh provinces
Deo Ngang tunnel owns 495m in length, 7.5m in height, 11.5m in width. The tunnel is arranged with 2 motorized lanes. The highest speed over the tunnel is 60km/h .
It is the 1st expressway of Vietnam meeting international standards. The begining point of the route is placed in Thanh Tri bridge (Hanoi) and the ending point is placed in Dinh Vu bridge (Hai Phong(
Total length of the route is 105km, cross section is 70m serving for 6 motorized lanes, with the design speed of 120km/h.
Bai Chay bridge is placed in NH18. It is a way linking Hon Gia and Bai Chay under Quang Ninh province
Total length of the bridge is 903m designed with 5 spans. The main span has the length of 435m. The cross section of the bridge is 25.3m serving for 4 motored vehicle lanes and 2 non-motorized vehicle lanes.
The Thong Nhat railway starts in Hanoi and ends in Ho Chi Minh City. The route is nearly in parallel to NH1
Total length of the route is 1,729 km, width is 1,00m. It goes through over 21 provinces in Vietnam. There are total 187 stations along the route
