The Richmond corner barrier should deflect sea water down the slipway
A trial of new flood defences at Perelle on Guernsey's west coast has been a success, according to the Public Services Department.
Custom-built barriers designed to deflect water that spills over the sea wall were placed on the coast road.
Made of aluminium and about 50 centimetres (19in) in height, they will be put in place when there are high tides and strong winds.
A department spokesperson said: "The trial was very successful."
Two of the barriers were erected, one at Richmond corner to deflect sea water down the slipway and another in Biloterie Road to deflect sea water into a nearby field.
The trial was part of a wider project which included the upgrading of the drainage system around the Perelle coast road to channel water which has come over the sea wall more effectively back into the sea.
The spokesperson said: "All the states work staff were able to see the barriers put out and local residents' representatives were there and they were very happy with what they saw."
In March a stretch of the coast road at Perelle was closed while stones brought over by 25ft high waves were cleared.