The Quebec Bridge Disaster - Short science journal article from the University of Guelph, summarising the event. - http://www.physics.uoguelph.ca/summer/scor/articles/scor213.htm
The First Quebec Bridge Disaster - A Case Study - Quebec Bridge, 1907. Collapse of steel cantilever motor bridge owing to mismanagement and miscalculations. Case study compiled from Royal Commission of Inquiry Report of 1908. - http://www.civeng.carleton.ca/ECL/reports/ECL270/Introduction.html
Quebec Bridge Failure - Short overview of the Quebec Bridge failures, with audio file of narrative. - http://www.uh.edu/engines/epi220.htm