It is clear that the government is serious about safety. In 1990, 22,578 citations for alleged Hazard Communications Standard (HazCom) violations were issued in the construction industry. The U.S. Bureau of National Affairs, which tracks OSHA activities, listed construction as one of OSHA's prime targets because of the industry's poor record in reducing serious accidents. Another indication of OSHA's interest in construction is the new OSHA Office of Construction and Engineering. Its purpose is to provide technical construction advice to OSHA.
Nineteen forty-nine was an exciting year for the concrete industry. It was the year that structural concrete literally leaped into full competition with structural steel as a result of the construction of the 155-foot-span prestressed concrete Walnut Lane Bridge in Philadelphia.