As if I don’t get enough of gray all winter, I’m planning to paint my house this spring and have picked out a color called ‘Manatee Gray.’ I’m rethinking my choice now though, since I learned from the Washington State Department of Transportation of a color called ‘Washington Gray.’ Little did I know, but concrete comes in all colors, so when a bridge or other infrastructure item is complete, it’s usually painted Washington Grey, but sometimes Mt. St. Helens Gray or Cascade Green, if the department is feeling really crazy.

So why paint a giant structure? The WSDOT blog has the answer.

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