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Elimination of grade crossings in Portland, Oregon a general discussion of the problem together with plans, specifications and estimates of cost for eliminating the grade crossings along the right-of-way of the O.-W.R. and N. Company in Sullivan's Gulch
- "Elimination of grade crossings in Portland, Oregon a general discussion of the problem together with plans, specifications and estimates of cost for eliminating the grade crossings along the right-of-way of the O.-W.R. and N. Company in Sullivan's Gulch"@en