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The Pennypack creek concrete arch bridge, P. and R. Ry
Illustrates and describes the construction of a bridge of five semi-circular arches, each of 60 ft. clear span, with an elevation of 80 ft. above low water. (1500 w.) (No. 76715)
The Pennypack creek concrete arch bridge, P. and R. Ry
Illustrates and describes the construction of a bridge of five semi-circular arches, each of 60 ft. clear span, with an elevation of 80 ft. above low water. (1500 w.) (No. 76715)
The Pennypack creek concrete arch bridge, P. and R. Ry
Ry Engng Rev
1906
Aufsatz (Zeitschrift)
Englisch
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