State workers who inspect boats being towed into Oregon say they looked at more than 4,500 vessels this summer, and found 54 infected with invasive species. 17 boats had quagga and zebra mussels, which have caused millions in damage in other states.
Oregon has four inspection stations. The busiest is along Interstate 5 at Ashland. That station closed at the end of September but will be in operation once or twice a week until full-time operation resumes in February. Stations in La Grande, Hines and Klamath Falls closed last month.
Boats traveling past an open inspection station are required to stop. Boats found to be infected are decontaminated.
Six people who bypassed the stations this summer were issued $110 citations.