The road network of Bangladesh consists of national highways (designated by a number preceded by "N"), regional highways (R numbers), and zilla or district roads (Z numbers). The total length is nearly 21,000 km.
National highway = 3544.06 km
Regional highway = 4278.07 km
Zilla road = 13,247.79 km
Total road length = 20,947.73 km
Name of Bridge, Name of Road, Length (meters)
(Bridges more than 400 meters in length are listed)