CHAPTER X.

STONE BRIDGING.

Of the water-way 233

Form of the arch 236

Thickness of voussoirs 238

Form and thickness of abutments 239

Form and dimensions of piers 245

Handbook of Railroad Construction; For the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States. · 第 10 / 19 章