No more snow ... studs must go

Drivers can still use studded tires on Idaho roadways, but only for a few days longer, the Idaho Transportation Department announced.

Idaho state law allows the use of studded tires Oct. 1 to April 30 each year. Driving with studded tires outside that time frame is a non-moving equipment violation with a fine of $67.

Because studded tires can damage highways, drivers are encouraged to use non-studded traction tires or delay the use of studded tires until necessary. Studded tires are snow tires with small metal cleats embedded in the tread for greater traction.

Driving on studded tires may cause excess wear on bare roadways. Idaho has no recent cost estimate, but there are regional examples.

In Oregon, studies have concluded that studded tires cause at least $40 million in damage each year on city streets, county roads and state highways. Washington state estimates the cost at $17.8 million to $27.3 million in wear and tear annually.

Studded tire laws vary in neighboring states.

Authorized start and stop dates, which can be extended based on conditions, are:

* Montana: Oct. 1-May 31

* Nevada: Oct. 1-April 30

* Utah: Oct. 15-March 31

* Oregon: Nov. 1-March 31

* Washington: Nov. 1-March 31

* Wyoming: legal all year