To further educate bridge designers, constructors, federal, state, local officials, and the general public in the vital role of bridges in our society. To improve and encourage the science of bridge design, construction, maintenance, and reconstruction by providing a forum for members to exchange and develop new ideas and techniques. To provide technical information and assistance to various public and private authorities for bridge programs, and to further educate and encourage public and private authorities in new and improved techniques for testing and reconstruction of bridge structures to promote the public welfare.