Last year the state had 500 million gallons of crude oil come through on trains.
Senator Ron Wyden is alarmed about the increasing frequency and wants to make sure safety measures are in place to prevent any derailments or accidents.
He held a roundtable discussion on the matter last Friday. He believes the railways have to be more open about what they're transporting.
"We have to work through the issue of railroads can't really do that because of present security issues. We can find a balance. It's not something that is impossible. We can make sure the communities are protected and remain sensitive to their question of security."
Railroads say they can' t reveal when these hazardous loads are coming through because of security issues.
Senator Wyden wants to improve the basic communication between railrods and communities to help prevent any accidents and to be better prepared to handle any spills.