Painting your house is a relatively quick, inexpensive upgrade you can make that has a huge impact on how it looks. Painting something like a bridge is completely different.
The Washington State Department of Tranportation (WSDOT) spends millions of dollars to paint bridges every year. They’re not just doing it so they look better though, there’s a much bigger reason. And why does it cost so much to paint a bridge? There are several reasons.