Tan De Bridge, Vietnam

The Tan De Bridge crossing of the Red River forms part of the 165 km long project to upgrade the National Highway Number 10 in northeastern Vietnam. This recently completed bridge provides much-needed connection between the strategically important coastal provinces of Nam Dinh and Thai Binh. The crossing replaces an existing vehicular ferry, which limited traffic capacity on the highway and restricted development of the whole Red River Delta region. The river crossing consists of a 5 span in-situ, concrete box girder bridge with pre-cast beam approach viaducts and approx. 940 m of approach embankment in the flood plain. The crossing carries a 2-lane undivided carriageway 10,5 m wide plus two segregated 2,25 m wide cycleways. With a total length just short of 1,1 km it is one of the longest concrete bridges in Vietnam.