The fourth tunnel opened in 1935, continuing the route south and southwest to Figueroa Street at Alpine Street. (Bridges over Figueroa Street on Temple Street and First Street were built in 1940, further improving that entrance to downtown.) The Figueroa Street Viaduct opened in 1937, providing a wider and direct Los Angeles River crossing than the Dayton Avenue Bridge. After passing over the river and San Fernando Road, it tied into Dayton Avenue (Figueroa Street) south of Avenue 26. The Arroyo Seco Parkway opened in late 1940 as a freeway from the Viaduct to Pasadena. However, the six-lane parkway narrowed to four lanes at the viaduct and through the tunnels, and had a number of at-grade intersections on its way downtown.