RUPERT Hodges, 16, took time out from studying for his GCSEs to cut four-foot high grass which was obscuring a busy road junction.
His father Julian Hodges of Bath Road, Colerne said: "It is an accident waiting to happen. It is extremely dangerous.
"The grass verge at the junction is so high that it is impossible to see oncoming traffic until you are so far out that you are committed to go."
Wiltshire County Council said it was aware of the problem and would be addressing it shortly.
"Long grass is a county wide issue that occurs every year. We have a maintenance schedule and are currently working through it," said a council spokesman.
He said they anticipated that the grass in Colerne would be cut in two weeks' time and then later again in the summer.
But Mr Hodges said the grass is already nearly four foot high and was extremely dangerous to drivers.
"We live in the Bath Road and to go out of Colerne you have to use that junction," he said.
"There have been two fatal accidents on that road in the last year. A woman was killed near Hunters Hall and a child was killed in Thickwood."
Mr Hodges eventually took the matter into his own hands after he decided he could wait for the council no longer.
"My two sons borrowed a strimmer and went out and cut off a triangular section to make it possible to see oncoming traffic. My oldest son is taking his GCSEs this week and had to take time off from studying to do the council's work."
His younger son Sebastian aged 14 also helped to cut the grass.
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