sw - 1 :- bza division:gdr - bza section - (1) replacing of bridge no.627/a at km.368/18-20 and bridge no. 664 at km. 399/24-26, up and dn lines, existing 1 x 1.22m rcc pipebridge with rcc box. (2) provision of bridge protection works for major bridge no.619 androb/ndo (3) provision of bridge protection works for minor brige works insse/works/telsection under aden/bpp sub-division. sw - 2 :-bza division:gdr - bzasection: replacement of exg. 3x3.26m rcc slab with rcc box (3x 3.34 x 3.25m) for bri