Concrete Roadway Quotes required

The work required is for labour, plant and materials to construct a concrete 'roadway' in the 3.7m diameter, 70m long steel tubular tunnel at the Health & Safety Executive at Harpur Hill, Derbyshire. The work in the tunnel comprises, placement and compaction of Type 1 graded limestone fill, placement of 25mm crushed limestone blinding and a Visqueen slip membrane, prior to casting, finishing and curing a 200mm thick Grade C30/37, B785 steel mesh reinforced concrete 'roadway' slab with doweled movement joints and sc...