Can I therefore no longer drive through the Wawona Tunnel?
Don’t be confused! The Wawona Tunnel is something else entirely, and it still exists. It is not at Wawona, nor is it in Mariposa Grove, where the fallen Wawona Tunnel Tree lies. The Wawona Tunnel is a highway tunnel, 4,230 feet (1.3km) in length, bored through rock and completed in 1933, through which Highway 41 enters Yosemite Valley. At the tunnel’s eastern end (above the west end of Yosemite Valley) is Discovery View, also called Tunnel View, one of the grandest and most famous views of Yosemite Valley.