Holmesdale Tunnel – M25

Costain chose Rorcon to assist them on the major refurbishment of the Holmesdale Tunnel, located at J25 of the M25. All works were carried out without closing the motorway and the project won the Highways Authority “Making Safety Happen Award” in 2007.

Major Refurbishment and Upgrade of M25 Through Holmesdale Tunnel