Show i CONSTRUCT 18 FOOT BRIDGES t some sm of 12 and 18 ft foot have hav boon 4 V built ti to 0 but P roven I 1 short sho rt j few highway bridges with a width 0 of roadway less leas than are now f being constructed ou improved roads ae according cordin g to engineers of the li bureau 11 reau of public roads of the united states slates department of in the ahe past some of 12 feet and a good nany of 10 16 foot width have been constructed in an effort but it haq proved shortsighted short sighted eco economy namy only ono one line 0 oi f cabi can pa oyer a 12 toot foot roadway anil and 10 feet of width will not accommodate tw two q lines in safety many of the states such as pennsylvania new jersey ohio find and al massachusetts chu have found it advisable in Op replacing lacing old bridges bridge s 0 on ji amp important 0 hajji roads to make teem alde enough en I 1 to mccomm 0 date 6 three ree aud aad four lines linea of traffic 1 4 i |