WM Plant Hire’s walking excavator ‘spider’ machine has been busy on both rail and highways bridges supporting scour protection in these tricky access locations. Working with Scour Protection at Highbridge pictured here the machine with its floatation tyres and independent legs was easily able to manoeuvre through the obstacles in the water lifting scour protection into place underneath the rail bridge. On the M4 underbridge near Newport, working with Alun Griffiths this machine demonstrated its versatility and the great advantage of its tilt rotate hitch in assisting with placement of rock and scour bags as well as tree removal when fitted with a shear.