By train
The closest Amtrak (http://www.amtrak.com/) station is Albany, some 15 minutes north by car. Some shuttle bus services are available.
You can use Linn-Benton loop bus from downtown Corvallis to go to Albany. This service is not provided after 7PM on weekdays and on Sunday.
By car
Take I-5 south to the State Highway 34 exit or exit 228B. Head west on OR34 about 10 miles and you will cross a bridge which leads you into downtown Corvallis. You can also turn left at the last light before the bridge, indicated by a sign saying "Oregon Coast/Reser Stadium," then take the exit that says "Eugene/Junction City". It will take you into south Corvallis, avoiding narrow one-way streets.
By bus
There is a Greyhound bus station located on 153 NW 4TH AVE in downtown Corvallis.