(Salem, OR) -- 60 percent of Oregon's bridges are older than 60 years and will need to be replaced in the next 15 to 40 years. The Oregon Department of Transportation replaces around three bridges a year, and at that pace it'll be 900 years before all of the bridges can be replaced. Oregon's annual Bridge Conditions Report shows most of the bridges are in good condition. ODOT conducts regular maintenance and inspections of bridges. Last year, 35 bridges were paved, 130 bridges were tested for load rating and restrictions were revised on 11 bridges, and more than 13-hundred bridges were inspected.