“NoveMBER 15, 1873.) Scientific Awaevicnw. 311 THE GREAT BRIDGE AT ST. LOUIS. In former numbers of the ScrmNTIFIC AMERICAN, we have given various interesting details pertaining to the remarka- ble work involved in building the granite piers of this great example of engineering. We have also given… … nious manner in which the placing of the superstructure is bridge being double, the arches are double. but the principle | ice was used. being executed. This work is now proceeding at St. Louis, and by its novelty attracts the attention of engineers from all parts of the world. The chief engineer…
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