According to the Iowa DOT, the lights aren’t intended to appear blue. The department installed LED lights with a white coating “a while ago,” Iowa DOT said in a Facebook post.

Now, that coating is flaking off, causing the lights to appear more blue or purple

  • Troy
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    3 months ago

    Same thing happened in Winnipeg. White coating failed early and entire streets were blue. Massive sunk cost issues to replace them.