Talk:Walnut Street Bridge (Philadelphia)

Prestressed concrete bridge?
I heard on TV that this was the first prestressed concrete bridge? Can someone verify that?--DThomsen8 (talk) 15:52, 21 June 2010 (UTC)
 * Today I found Walnut Lane Memorial Bridge (Philadelphia, Pennsylvania), which is the first such bridge, obviously I confused the names. --DThomsen8 (talk) 22:58, 21 June 2010 (UTC)