'Can't solve everything': What are authorities doing to stop repeat graffiti on I-84?

PORTLAND, Ore. (KOIN) — State and local officials are coordinating efforts to combat graffiti on I-84 after taggers targeted the section of Portland freeway one day after a massive cleanup effort had been completed.

The closure that took place over the weekend addressed not only graffiti but also litter, maintenance and improved lighting. While a lot of good things were completed, Oregon Department of Transportation officials said they're not surprised some graffiti has already returned.