Transportation Corridor Agencies (TCA) are two joint powers authorities formed by the California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 legislature in 1986 to plan, finance, construct, and operate Orange County

Orange County, California

Orange County is a county in the U.S. state of California. Its county seat is Santa Ana. As of the 2010 census, its population was 3,010,232, up from 2,846,293 at the 2000 census, making it the third most populous county in California, behind Los Angeles County and San Diego County...

's toll road

Toll road

A toll road is a privately or publicly built road for which a driver pays a toll for use. Structures for which tolls are charged include toll bridges and toll tunnels. Non-toll roads are financed using other sources of revenue, most typically fuel tax or general tax funds...

s. TCA consists of two local government agencies:

• The San Joaquin Hills Transportation Corridor Agency which oversees the San Joaquin Hills Toll Road.
• The Foothill/Eastern Transportation Corridor Agency which runs both the Foothill Toll Road and the Eastern Toll Road
  Eastern Toll Road (California)
  Eastern Toll Road may refer to:* California State Route 261, connecting 241 and Interstate 5* California State Route 133, in southern California* California State Route 241, part of both the Eastern Toll Road and the Foothill Toll Road...
  
  .

The toll roads maintained by TCA are financed with tax-exempt bonds on a stand-alone basis -- taxpayers are not responsible for repaying any debt if toll revenues fall short.

Some California lawmakers and toll road advocates favor using similar local agencies to build and maintain future tollways, especially after the controversy of authorizing a private company to run the 91 Express Lanes. Others oppose them, arguing that new toll roads will just facilitate and perpetuate sprawl.