The A465 Heads of the Valleys upgrade is the biggest road project in Wales and one of the biggest in the UK. Planning began in 1990; the project was given the go-ahead by the Welsh Government in 1999 and work on the first of five phases began three years later.
Our Self Drilling Soil and Rock Nails (SRN) consist of a self-drilling hollow bar with a rolled continuous thread as load-bearing element embedded within a grout body.
