Yerba Buena Tunnel CA
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Description: The Yerba Buena Tunnel, an integral part of the San Francisco-Oakland Bay Bridge in California, is a remarkable engineering feat that cuts through Yerba Buena Island. Opened in 1936, this double-deck tunnel is one of the largest-bore tunnels in the world, measuring approximately 76 feet wide and 58 feet high. It accommodates both eastbound and westbound traffic, with the upper deck designated for westbound vehicles heading into San Francisco and the lower deck for eastbound vehicles traveling toward Oakland. The tunnel's construction was a significant challenge due to the island's rocky terrain, but it has since become a critical component of the Bay Area's transportation infrastructure, facilitating the movement of thousands of vehicles daily and contributing to the region's economic vitality.