NJDOT has adopted “AASHTO Guide Specifications for LRFD Seismic Bridge Design” approved by the Highway Subcommittee on Bridges and Structures in 2007. The main objective of research presented in this report has been to resolve following issues for an effective implementation of AASHTO Guide Specifications: (i) AASHTO Guide Specifications don’t provide any specific guidelines for classification and performance requirements for critical bridges.

This project focused on the feasibility of the use of natural brine for anti-icing and pre-wetting in Onondaga County, Syracuse, New York. A thorough literature review was conducted on the use of brine as an anti-icing and pre-wetting agent both in the U.S. and abroad. The review indicated that the use of brine as an anti-icing and pre-wetting agent has gained popularity in most of the Departments of Transportation (DOT) in the U.S. and abroad over the years.

This project focused on the feasibility of the use of natural brine for anti-icing and pre-wetting in Onondaga County, Syracuse, New York. A thorough literature review was conducted on the use of brine as an anti-icing and pre-wetting agent both in the U.S. and abroad. The review indicated that the use of brine as an anti-icing and pre-wetting agent has gained popularity in most of the Departments of Transportation (DOT) in the U.S. and abroad over the years.

Inappropriate traffic speeds are a major cause of traffic fatalities. The use of lighting and visual information such as signage could assist in encouraging appropriate driving speeds. Along sharp roadway curves, an overall reduction in driving speed might be desirable to prevent rollover crashes. At other locations, such as those prone to chronic congestion, uniformity of vehicle speeds might be desirable in order to optimize safety and traffic flow.

Anti-icing, deicing and pre-wetting methods have become common for winter maintenance of roads. Brine (23%salt solution) is the most common material for anti-icing, deicing and pre-wetting processes. Typically brine is prepared from rock salt. There are very few studies that have investigated the use of naturally occurring brine for anti-icing and deicing. This study focused on the use of naturally occurring brine in the Syracuse, New York area for winter roadway maintenance.

This report presents a new approach for evaluation and maintenance of existing concrete bridges; an active preventive maintenance approach, which costs just fraction of the current passive approach. Such an active preventive maintenance approach requires chemical detection of potential deterioration problems before they even start.

NJDOT has adopted “AASHTO Guide Specifications for LRFD Seismic Bridge Design” approved by the Highway Subcommittee on Bridges and Structures in 2007. The main objective of research presented in this report has been to resolve following issues for an effective implementation of AASHTO Guide Specifications: (i) AASHTO Guide Specifications don’t provide any specific guidelines for classification and performance requirements for critical bridges. This issue is resolved by proposing performance requirements and classification criteria for critical bridges in New Jersey.