Engineering News-record, Volumen110

April asphalt average beams bids bridge building built capacity cement cent channel Chicago chlorine cofferdam Colorado River aqueduct columns commission concrete construction contractor contracts cost County crete cu.yd cutoff district earthquake effect engi engineer equipment excavation falsework federal Finance floor girders Grade separation highway Hoover Dam improvements increase industry joint June load loan Los Angeles Louis material ment methods miles Mississippi River municipal Muscle Shoals neering operation Orleans piers piles pipe Pittsburgh plant Portland Cement present proposed public-works pumping railroad Reconstruction Finance Corporation reinforced result River rivets road San Francisco sand sewage sewers shear span station steel strength stresses struction structure Tennessee River tests timber tion traffic tricalcium silicate truss tunnel United walls water supply waterworks week welding York