California State Route 133

State Route 133 is a state highway in the U.S. state of California. It connects SR 1 in Laguna Beach through the San Joaquin Hills with several freeways in Irvine, ending at the SR 241 toll road in the latter city. The portion north of SR 73 in Laguna Beach is part of the California Freeway and Expressway System, and it is built as an expressway from SR 73 to Laguna Canyon Road . SR 133 is a freeway to I-5, and a tollway to SR 241 near the Santa Ana Mountains.SR 133 was constructed as a county road by the 1910s; the portion from I-405 to I-5 was upgraded to a freeway four decades later. Plans to extend the freeway south were canceled by the state, and the southern part of the road remains an undivided highway. In 1998, the majority of the Eastern Transportation Corridor opened, and the connector between I-5 and SR 241 was designated as a toll extension of SR 133.