The Hyatt Regency Walkway Collapse occurred on July 17, 1981, in Kansas City, Missouri, during a crowded event. Two suspended walkways in the Hyatt Regency hotel fell, resulting in the deaths of 114 people and injuring over 200 others. The incident was one of the deadliest structural failures in U.S. history. Investigations revealed that design flaws and construction errors contributed to the collapse. The original design was altered, leading to a critical failure in the support system. This tragedy prompted changes in building codes and increased awareness of engineering safety standards in the construction industry.