CHAPTER III.

BRIDGE FLOORS.

Liability to defects--Impact--Ends of cross and longitudinal girders--Awkward riveting--Fixed ends to cross girders--Plated floor--Liberal depths desirable--Type connections--Effect of “skew” on floor--Water-tightness--Drainage--Timber floors--Jack arches-- Corrugated sheeting--Ballast--Rail joints--Effect of main girders on floors 20