That begs the questions of:
1) Who did the Interurban line buy it from (I have a solid guesstimate that it's an Oregon Short Line span. The spans that are nigh-identical in style at Ririe, Idaho are all relocated OSL spans.) and where did the span originally come from?
2) It lasted til at least 1981, per imagery of HistoricAerials. What took it out? Was it a flood? Do we have another case of "Farmer NIMBYism"?
I believe it is indeed Luke
Anyone else think this looks a little Pegram-like?