Chantry View Road Slope Instability, Guildford

KEY FACTS

Chantry View Road Slope Instability, Guildford

Following a severe winter storm, mature trees at the top of an old chalk quarry face, dating from the mid-1800s, were toppled. The root balls pulled out from the slope and shortly after resulted in localised quarry face failure which ravelled back and threatened the stability of a house built adjacent to the quarry face on land above.

PBA closely inspected the face failure and determined that the failed portion of the slope was localised and associated with the presence of head deposits overlying the weathered chalk surface. The overall chalk slope was relatively stable though was now exposed again to weathering following the loss of protective vegetation cover.

Working with a specialist contractor we created a remedial scheme to reinstate the lost ground at the top of the slope and protect the quarry face from future weathering.