[Vision2020] pipes being laid along Pullman highway

[Bruce and Jean Livingston]

The light rail discussion reminded me that when I drove to Pullman yesterday, I noticed several miles of a trench being dug from Pullman toward Moscow, and small green pipes, 4-8 inches in diameter, being laid in the trench.  Anyone out there know what is the purpose of these pipes?  They don't look like they would be for water or sewage, to my untrained eye, anyway.

Bruce Livingston

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