Architect and engineer . ng through considerable limitswithout injury or noticeable deformationand to absorb all the changes resultingfrom expansion and contraction of their,material. A very large portion of the inhabitedarea of the United States is composed ofalluvial valleys and plains. The subsoilof such regions, while highly favorable toagriculture, offers certain difficulties inthe construction of highways and rail-roads through its tendency to shift andsettle under the weight of fills and is not practicable to excavate deeply atall intersecting water courses and drain-age ways
Architect and engineer . ng through considerable limitswithout injury or noticeable deformationand to absorb all the changes resultingfrom expansion and contraction of their,material. A very large portion of the inhabitedarea of the United States is composed ofalluvial valleys and plains. The subsoilof such regions, while highly favorable toagriculture, offers certain difficulties inthe construction of highways and rail-roads through its tendency to shift andsettle under the weight of fills and is not practicable to excavate deeply atall intersecting water courses and drain-age ways and lay solid and unchangingfoundations for masonry, since theseplaces are so numerous that such a coursewould involve extravagant a culvert pipe which has tough-ness or resiliency as well as strength isextremely useful. The accompanying drawing shows acorrugated pipe, newly installed, andagain after two or three years serviceunder conditions which are duplicatedthousands of times over and from one end. Locatiun of sijilion carrying drainaee water under irrigation canal. Xifrom expansion and contraction although firmly anchored at both ends. THE ARCHITECT AND ENGINEER 127
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Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectarchitecture
