A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seventeen arches in this pipe culvert
Culvert on highway west of Portland, Oregon, consists of 17 corrugated iron 72 × 44 in. pipe arches and 1 circular pipe, 84 in. diam; reinforced concrete walls serve to hold pipes in position and prevent erosion.
Seventeen arches in this pipe culvert
Culvert on highway west of Portland, Oregon, consists of 17 corrugated iron 72 × 44 in. pipe arches and 1 circular pipe, 84 in. diam; reinforced concrete walls serve to hold pipes in position and prevent erosion.
Seventeen arches in this pipe culvert
Roads Streets
Roads and Streets ; 90
1947
Article (Journal)
English
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