Details: providing and erecting a "thrie" metal beam crash barrier comprising of following three factory made unites-viz. 1) thrie beam 2) spacer block 3) vertical post. the thrie beam 3mm thick cold roll formed guard rail raw material conforming to is-5986-2011 with minimum grade 255 & with minimum yield stress of 255 mpa which is fixed by bolted connection to spacer block c-channel of size 75mmx150mm & 5mm thick, 54.6cm height spaced 2meter centre to centre, fixed to vertical post c-channel of size 75mmx150mm &5mm thick cold roll formed section made from hr coils raw material conforming to is-5986-2011 with minimum grade 255 & with minimum yield stress of 255mpa, with 85cms free height above road or ground level, and embedded to 115cms deep in cement concrete block of size 35cm*35*115cm of minimum grade m15 (1:2:4) or as directed by engineer incharge, assembled & fixed as per drawings of morth&h circular no.rw/nh/33022/1/94-do/iii, dated 24/6/1994 & construction operation as per 811 or releva
Sector: PWD