Mayo County Council says Kinetic fencing installed on Dooncarton mountain in north Mayo following devastating landslides in 2003 prevented serious damage during heavy rainfall last week.
The heavy rain last Friday led to small landslides taking place on Dooncarton mountain for the first time since the 2003 events.
Following the devastating landslides 16 years ago, kinetic fencing was installed on the mountain, along with drainage and the creation of Berms higher up the mountain to divert heavy waterflow - in a €1.5 million euro investment.
Until last week, the measures had not been fully tested by the threat of a landslide.
Following Friday's heavy rain and small landslides, Mayo County Council inspected the site and said the safety measures put in place proved successful.
The council says that, while some of the more liquid elements were able to come through the fencing, it's designed to hold back the more solid elements which can cause significant damage.