WEBJun 12, 2023 · Local 478. Quick Facts. Members. 3,098 Assets. $5,755,961 Employees. 38 Primary Industry Other Address. OPERATING ENGINEERS 1965 DIXWELL AVENUE HAMDEN, CT 6514. Financial Information. The Labor-Management Reporting and Disclosure Act (LMRDA), which is enforced by the Office of Labor-Management Standards, requires labor unions to file annual ...