Construction of Catesby Tunnel, Northamptonshire
Looking north out of the mouth of Catesby tunnel, Northamptonshire. At 2997 yards (2740 metres), the tunnel was the London Extension's longest, and it stood as a testament to the challenge so brilliantly taken on by the engineers who wanted a fast, even Railway, and who were prepared to build tunnels, bridges and viaducts of any size to make this ambition a reality. T. Oliver & Son was the contractor who built this section of the Line (Contract No.4, Rugby to Woodford). See on Route Map