The Oregon Department of Transportation reminds drivers to be prepared for snowy and icy conditions as they travel through Oregon this week.

Severe driving conditions are affecting state highways throughout Oregon. ODOT reminds drivers to use chains or traction devices when necessary and to drive slowly and carefully. State officials report several crashes have occurred because drivers have not been using chains and were driving too fast for conditions.

Chains are required in Oregon whenever winter conditions exist and "Snow Zone" signs are posted. ODOT's travel information Web site,, has up-to-date information on road conditions, chain requirements and diagrams on where to place chains on various vehicle combinations.