can anyone tell me what these are? there is a large amount of gravel inside the barn and nothing else on the property Submitted by Ok_Woodpecker_3625 t3_102r2ng 2 years ago in Washington 23 comments 74
St_Kevin_ t1_j2v4at3 wrote 2 years ago Washington state department of transportation uses these structures to store material that they put on road surfaces during snow storms. Permalink 28
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