Bixby Bridge, Monterey

Bixby Creek Bridge, also known as Bixby Bridge, on the Big Sur coast of California, is one of the most photographed bridges in California due to its aesthetic design, "graceful architecture and magnificent setting." It is a reinforced concreteopen-spandrel arch bridge. The bridge is 120 miles (190 km) south of San Francisco and 13 miles (21 km) south of Carmel inMonterey County alongState Route 1. Source: Wikipedia 

Prior to the opening of the bridge in 1932, residents of the Big Sur area were virtually cut off during winter due to the often impassable Old Coast Road that led 11 miles (18 km) inland. At its completion, the bridge was built under budget for $199,861 (equivalent to $3.5 million in 2016) and was the longest concrete arch span at 360 feet (110 m) on the California State Highway System. It is one of the tallest single-span concrete bridges in the world.