Chicago : Engineering and Contracting Pub. Co. · leaf 517
Section Bon<£ of Track. 5ectionC creasing the pressure on the toe of the foot-ings from 3.7 tons to 3.2 tons pressure onnatural foundation, at no additional cost inthe abutment, and at an additional cost ofonly $100 in the superstructure. … 40-/ ■I T fBase of RaiI g £ ^
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
