SARNIA, Ont. - More than 5,000 trees are being planted along a highway where hundreds of motorists were stranded by a snowstorm in southwestern Ontario last winter.

Steven Shaw of the St. Clair Region Conservation Authority says they have to get working on something to slow down the wind and accumulation of snow that's blown from fields onto Highway 402.

But Shaw says it will likely be several years before there are benefits from the trees that will form a windbreak along the highway.

Police, the military and volunteers helped rescue nearly 240 stranded motorists who were trapped in their vehicles along the snow-swept highway last December.

The operation included two Griffon helicopters from CFB Trenton.

Highway 402 connects Highway 401 in London to the Blue Water Bridge international crossing near Sarnia.