Show LIGHTED CIGARS DANGEROUS Discarded Dist Butt or Cigarette Thrown on Wooden Floor of Steel Bridge May Cause Fire Prepared P pared by the tho United States Department or of Agriculture Dont Don't throw throwaway away your cigar or cigarette when crossing a n bridge with witha a wooden floor advises the bureau of public roads of the United States Department Department De De- of Agriculture It ma may start a fire that will wUl destroy the bridge Many such fires are started Most of ot them are put out with small damage damage damage dam dam- age but occasionally a large structure Is destroyed It seems strange that a n steel bridge should be destroyed by fire but heat from a burning floor may cause the destruction of the whole bridge by softening the time breakIng breakIng breaking break- break Ing of ot one weakened member will cause the time whole span to drop into the Ule river On some large bridges a n watchman Is kept to guard against this danger ang r and in a n dry season fires have ha been known to occur dally daily A committee compos composed cd of a n representative representative of the bureau and anti representatives representatives es of or the national board of fire underwriters the lumber and creosote Industry and the time I Engineering News News- Record a prominent engineering magazine maga magn- zine zint- is now Investigating the subject and considering the best means of protection |