Show ron r boulin 11 fi PROBLEM OF SKEWED BRIDGE methods method used for calculating stresses and pi proportioning art are not approved prepared by the united staten state department of 0 agriculture method of calculating tile the stresses ond anti proportioning tile the size ot of chewed concrete arch bridges which have been considered good practice in the past may be incorrect find result in tile the collapse of the structure according to to engineers of the bureau of skewed arch bridge used for stream crossing road diagonally note position of railing on opposite sides side of road roads of the united states department of agriculture A skew bridge la Is one in which the center line of the bridge Is 13 not perpendicular with the abutment on which the bridge rests anti anil is used when it a bridge crosses a stream or railway track diagonally the bureau Is jointly responsible with the several state highway departments for the correctness of the design of 0 all structures on federal aid roads and for this reason the problem Is being carefully studied |