Tunneling work either for “D” or for “Elliptical
Section” steel rib supports with specific degree
of deviation are required to be fabricated.
In addition for gauge conversion from narrow gauge to
broad gauge steel bridge girder in different spans of
12.2/22.214.171.124/61m span are required to be fabricated.
On being awarded contracts by NF railway for tunneling
as well as bridge girders ABCI have developed expertise
in fabrication, transportation, dismantling of existing
girder and erection of new girders. These are very specialized
and sophisticated job.