'- ft, 



Figure 18.— Ohio River crossing of the Baltimore and Ohio ai Ben wood, 

 Wesi Virginia, completed in [870. Bollman deck trusses were used in the 



approaches on b PI 693, Baltim io Collection, 



Museum ol I Eisti n j and I ei hni J 



t 



Figure 19. Patapsco Rjver crossing of the Baltimore and Ohio between 

 rhistle and flchester, Maryland. (Phoi 5 Baltimore and Ohio C '< .lit f- 



t ii m. Museum of Hision and I echno!. 



I'.M'l R 3(>: 1 MilM I.RIM; COMRIIU I |( )\S (il WIAIH I !',( U I \1 \\ 



93 



