![]() This resulted in another eight years of payments, delaying the pay-off date to 2050. In 2014, the debt was again restructured in an attempt to get improved interest rates, improved debt ratings, and in the process save $44 million in debt repayment. In 2011, $2.1 billion in debt for the San Joaquin Hills toll roads was restructured, which pushed back the time until the bonds are paid off and the route becomes a state-owned freeway to 2042. SR 73's toll road was the first to be financed with tax-exempt bonds on a stand-alone basis, including construction and environmental risk. A joint venture led by Kiewit Pacific Co., a subsidiary of Kiewit Corporation, completed this project in 1996. Construction was divided into four sections, each with an individual management system and quality control. In the end, State Route 73 included 10 interchanges, 68 bridges, 725,000 square feet (67,400 m 2) of retaining walls, and 32 million cubic yards (24,000,000 m 3) of excavation at completion. The design and construction was overseen by the San Joaquin Hills Transportation Corridor Agencies, or SJHTCA, an agency formed in 1988 for the express purpose of designing the tollway. The design and construction of the highway cost a total of $800 million. Though the next ramp heading southbound (Bison Avenue) is part of the toll road, it is toll-free, as is the first ramp heading northbound from the southern terminus (Greenfield Drive). Under the current alignment, heading southbound, SR 73 becomes a designated toll road immediately after the Jamboree/MacArthur ramp and remains so until its southern terminus at I-5. SR 73's previous alignment had the freeway portion end at MacArthur Boulevard, and the SR 73 designations ran along with MacArthur south to meet SR 1 in Corona del Mar. From its northbound terminus heading southbound, the first three miles (4.8 km) of SR 73 has no tolls and is known as the Corona Del Mar Freeway. SR 73 is not a toll road over its entire length. ![]() Most of SR 73 is a limited-access toll highway designed to reduce congestion within Orange County on the Pacific Coast Highway ( SR 1) and the San Diego Freeway ( I-5 and I-405) by providing a direct route through the San Joaquin Hills. In the foreground is the Bonita Canyon Drive exit. SR 73 climbs into the San Joaquin Hills, as seen looking southward from University Hills in Irvine. SR 73 is part of the California Freeway and Expressway System, and is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. Entering Costa Mesa, SR 73 interchanges with SR 55 before ending at I-405. SR 73 continues into Newport Beach, running along the southern boundary of Orange County John Wayne Airport ( IATA Airport Code SNA). Following the MacArthur Boulevard exit, the tolled part of the road ends and becomes a freeway. ![]() After leaving the state park, SR 73 straddles the border between Irvine and Newport Beach and provides easy access to University of California, Irvine through the Bison Avenue exit. Following this, the road passes through Crystal Cove State Park, where the main toll plazas are located. After passing Greenfield Drive, SR 73 enters Aliso Viejo before entering Laguna Beach, where SR 73 has an interchange with SR 133. The freeway heads northwest into Laguna Niguel before the tolled portion begins at the Greenfield Drive exit. SR 73 begins in northern San Juan Capistrano near the Mission Viejo border at an interchange with I-5. Currently, there are no HOV lanes for the three-mile freeway segment, but the medians have been designed with sufficient clearance for their construction should the need arise in the future. The highway's alignment through the San Joaquin Hills follows an approximately parallel path between the Pacific Coast Highway and I-405. SR 73's southern terminus is at Interstate 5 (I-5) in San Juan Capistrano and its northern terminus is at Interstate 405 (I-405) in Costa Mesa. The northernmost 5.76 miles (9.27 km) of the highway, which opened in 1978, is part of the Corona del Mar Freeway. The southernmost 12 miles (19.31 km) of the highway is a toll road operated by the San Joaquin Hills Transportation Corridor Agency named the San Joaquin Hills Transportation Corridor, which opened in November 1996. State Route 73 ( SR 73) is an approximately 17.76-mile (28.58 km) state highway in Orange County, California. ![]()
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