Laborers' International Union of North America Local 310 is an affiliate of the 750,000 member Laborers' International Union of North America (LIUNA) which represents workers in the Ohio Valley/Southern States region. Chartered on 9 November 1925, Local 310 has continually been locally affiliated with the Cleveland AFL-CIO, despite the LIUNA's national disaffiliation in 1 June 2006. Members of Local 310 work for over 600 construction contractors in Cuyahoga and Geauga Counties. Local 310 members specialize as carpenters, cement masons, bricklayers, plasterers, floor layers, operating engineers and plumbers.
Following the general deindustrialization of greater Cleveland area following World War II, Local 310 has modified training of its members to meet the needs of the modern labor force. As such, Local 310 provides qualified asbestos and hazardous waste abatement workers who supervise cleanup efforts in Northeast Ohio. Members also participate in an apprenticeship program co-sponsored by Construction Employers Association. Training classes are held regularly at the union hall
Laborers' Local 310 offices are located at 3250 Euclid Avenue. Built in 1972, The Joseph Vallente Union Hall also houses other labor-oriented organizations including: the Cleveland AFL-CIO, Cleveland Building and Construction Trades Council, Laborers' Local 1099, Elevator Constructors Local 17, the District Office of the International Association of Bridge Structural and Ornamental Iron Workers, Benefits Group Administrators, Inc. and Local 310 Fringe Benefits, Inc. In 2008, Local 330 had 3,000 members.