Further problems occurred in January 1954, when the toe of the dam, which was formed of sand, was washed away as a result of heavy rainfall. Water running off from the higher ground at either side of the dam ran along a berm near the foot of the dam, causing the sand to flow away, and a landslip to occur.
In January 1954, problems arose at the dam. The toe of the dam, made of sand, was washed away by heavy rainfall. Water from higher ground on either side of the dam flowed along a berm near the base of the dam, eroding the sand and causing a landslide.