Routine design When we think of bridges, it is the dramatic and monumental long spans that come to mind first, especially the lithe suspension bridges such as the Golden Gate and the pure geometric arches such as Sydney Harbour. But the majority of bridges are not such spectacular structures. Most of them are ordinary overpasses, with spans of 30 or 40 feet, carrying roadways or rails across other thoroughfares or over small streams. You see such bridges by the dozen on any drive down the Interstate. They may be lacking in glamour, but they are more representative of a bridge builder's art. The engineering and construction of girder bridges are pretty routine these days, but the bridges are not quite standard items you order from a catalogue. The girders, whether of steel or concrete, are custom-build for each bridge, then trucked to the site and hoisted into place with a crane. The designer still has scope for variation and creativity, and it shows out on the highways: some overpasses are prettier than others. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape engineeringdesignautomationroutine
A passive beauty of right structure The human maker, working in unself-conscious matter, receives no worship from his creatures, since their will is no part of his material; he can only receive the response of their nature, and he is alone in fault if that response is not forthcoming. If he tortures his material, if the stone looks unhappy when he has wrought it into a pattern alien to its own nature, if his writing is an abuse of language, his music a succession of unmeaning intervals, the helpless discomfort of his material universe is a reproach to him alone; similarly, if he respects and interprets the integrity of his material, the seemliness of the ordered work proclaims his praise, and his only, without will, but in a passive beauty of right structure. Dorothy Sayers, The Mind of the Maker The Web's Grain material