"U of M research finds most road salt is making it into the state's lakes and rivers."

Do not plant it in dry, compacted soil or too close to streets where road salt is used.

And forget about road salt - it doesn't exist in South Africa.

In the late 1970s it was discovered that road salt had seriously damaged the bridge.

"From waste products to excessive fertilizer runoff to road salt."

The current market price for road salt runs from $25 to $45 a ton, depending on transportation costs.

Other additives had been used in road salt to reduce the total costs.

The land was then used for the storage of road salt.

The elevated section was not built to withstand the use of road salt in the winter.

And road salt is no longer a corrosion threat.