Analysis of Bridge Collision Incidents. Volume II.

摘要

This report is the second volume in the investigation of towboat collisions with bridges on the inland waterway and western rivers. Volume I was a review and analysis of casualty reports. Volume II supplements and completes the casualty research by technical interviews with experienced towboat captains and pilots. The primary cause of bridge collisions is identified as lack of control in high water and swift currents. The lack of control situation is very briefly analyzed to indicate that there are certain combinations of tow size and current speed that can be very critical. Five bridges are studied in detail including navigation procedures for making the bridge passage safely. The bridges at Berwick Bay (Morgan City) are analyzed and current high water regulations are evaluated. (Author)