California State Route 73 is a toll road that runs through Orange County, connecting the cities of Irvine and Laguna Niguel. It spans approximately 15 miles and provides a scenic route along the coastal foothills, offering views of the surrounding landscape. The highway is part of the larger California State Route system and serves as a vital commuter route, helping to alleviate traffic congestion in the area. It features several interchanges that connect to major roads, making it an important thoroughfare for both local residents and visitors.