 Too bad they spent all the time working on this thing. Road crews in Portland shut down a major freeway over the weekend so they could clean up miles of graffiti. And less than a day after the project was completed, vandals were right back again on I-84. This is a problem. Everybody in the community knows graffiti and litter are a problem in the I-84 corridor and in many places around the community. Don Hamilton with the Oregon Department of Transportation says they're working with the state police to try and discourage vandalism.