In engineering it is the bridge (61) that vividly expresses the play of exaggeratedly pure order against circumstantial inconsistencies. The direct, geometric order of the upper structure, derived from the sole, simple function of conveying vehicles on an even span, strongly contrasts with the exceptional accommodation of the structural order below, which through distortion-the expedient device of Elongated or shortened pierrs---accomodates the bridge to the uneven terrain of the ravine.