in a northeasterly direction along the White Slough before turning east as it crosses over State Route 29 and heads to its eastern terminus at I-80 as the James Capoot Memorial Highway (honoring a Vallejo police officer who was killed in the line of duty). In the early 1990s, the stretch between Fairgrounds Drive, which serves as the entrance to Discovery Kingdom, and Mini Drive was upgraded to a freeway. In 2004 and 2005, following over fifty years of complications, the remaining non-freeway section in Vallejo was upgraded as well. SR 37 is also known as Randy Bolt Memorial Highway from SR 29 to Skaggs Road (honoring a California Department of Justice agent who was killed in the line of duty in an accident along SR 37), and Sears Point Toll Road, which was originally a toll road that ran from SR 121 to Vallejo. SR 37 is part of the California Freeway and Expressway System, but is not 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. SR 37 is eligible for the State Scenic Highway System, but it is not officially designated as a scenic highway by the California Department of Transportation. History The stretch of road east of Sears Point was once part of the historical El Camino Real. As a result of the State Highways Acts of the early 20th century, the Black Point Cut-off was built over it and opened to traffic in 1917. This highway followed the current alignment east of Sears Point, before diverting northeast along present-day Route 121. It was first designated Legislative Route 8 (LRN 8), later being signed as State Route 37. Prior to being under State control, the section between Sears Point and Vallejo was known as the Sears Point Toll Road, a toll road managed by Golden Gate Ferry that was built over an ancient Native American trail. When it was purchased by the State in 1938, tolls were removed; it then became signed as State Route 48 until 1964. Route 37 was redefined in the 1964 state highway renumbering as a route starting at SR 251, then SR 17, near Nicasio and ending at I-80 near Lake Chabot. The whole of SR 37 has been proposed to be built to freeway standards since the early 1950s. However, the proposal was