Bridges in New York State have been experiencing close to 200 bridge hits a year. These accidents are attributed to numerous factors including: improperly stored equipment on trucks; violation of vehicle posting signs; illegal commercial vehicles on parkways, etc. This report describes the work done to achieve the following objectives: (i) review and identify major factors contributing to bridge impacts, (ii) provide recommendations to the NYSDOT about effective measures for reducing the likelihood of future bridge hits, (iii) provide long term, feasible and economical recommendations to reduce the likelihood of bridge hits, (iv) review and comment on the NYSDOT Collision Vulnerability Assessment Procedure and provide recommended improvements and (v) develop a computer program for analyzing the bridge hits occurrences as new bridge hits data become available. The focus of the research has been on commercial overheight vehicles hitting superstructures of bridges. This study doesn’t address water vessels or trucks colliding with highway bridge piers.