John S. Lund, PE is a Principal at Martin/Martin, Inc., a full-service structural and civil engineering firm headquartered in Denver, Colorado. John has over 35 years of experience in the structural design, assessment, evaluation and repair of buildings and other structures. He manages the Structural Investigative Group at Martin/Martin, a team of 30 engineers and technicians who specialize in repair of existing buildings, bridges and other structures. John is a fellow of the American Concrete Institute and the chairman of ACI Committee 563 (Repair Specifications), he is also a voting member of several other ACI Committees, including  562 (Repair Code), 546 (Repair), 364 (Rehabilitation), E706 (Concrete Repair Education) and the TAC Repair and Rehabilitation Committee. He is past President of the Rocky Mountain Chapter of the International Concrete Repair Institute.