Do forward and backward pass calculations to indicate early and late start and finish times. Duration Predecessors

Do forward and backward pass calculations to indicate early and late start and finish times.

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Duration Predecessors (Months) C, E F. G ABCCGDGHE 2664341232 Activity Activity Description No. ABCDEFGHIK L Detailed site investigation and survey Detailed planning Detailed design Preparation of site Relocate services Re-align overhead track electrification Access road and ramp construction Piling Construct foundations and abutments Construct temporary supports to support bridge deck during construction Fabrication planning of structural steel components Manufacture structural steel components (off-site) 2 C 2 PO Q N erect on-site Erect pylons and fill with concrete Construct main span deck on pre-cast concrete beams Transport structural steel components and 1 M 23 J H, K, N, P R Install stay-cables and lift the bridge deck 3 Q off temporary supports STUVWXYNA Remove temporary supports 1 Electrical system installation 1 Roadway surfacing (paving) Finishing and ancillaries 2 2 Commissioning-cut-over 1 Formal handover and ceremony 1 Project sign-off 1 Z AA Administrative closure 1 RSST>x: T, U V W W Project end 0 (milestone) Y, Z