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The Transportation Corridor Agencies (TCA) are the two joint-powers agencies -- the Foothill/Eastern Transportation Corridor Agency and the San Joaquin Hills Transportation Corridor Agency -- formed in 1986 to manage the planning, financing, construction and operation of State Routes 73, 133, 241 and 261 (The Toll Roads). Elected officials from 18 cities and three members of the Orange County Board of Supervisors govern the agencies and one staff works under the direction of both boards.