The 50.7 km long four lane highway from Patna to Bakhtiyarpur in Bihar includes one major bridge, 11 minor bridges, two road-over-bridges, three grade separators, six pedestrian underpass and 61 culverts. Within the 50.7 km stretch there is a 35 km greenfield alignment which bypasses the major towns along the existing road.
National Highway Authority of India had undertaken the design, engineering, finance, procurement, construction, operation and maintenance of the project. Ramboll was the post-bid design consultant for the project where its team prepared detailed design report and execution drawings for the entire project including both highway and structures. Ramboll was accountable for undertaking road condition, topographic, soil and material investigation, and hydrological surveys.