The San Mateo Bridge is a vital roadway in California, connecting the cities of San Mateo and Hayward. Spanning approximately 7 miles across the San Francisco Bay, it serves as a major thoroughfare for commuters and commercial traffic, facilitating travel between the Peninsula and the East Bay. Opened in 1967, the bridge features a unique design with a series of concrete spans and a distinctive arch. It is part of California State Route 92 and plays a crucial role in the region's transportation network, helping to alleviate congestion on other nearby bridges like the Dumbarton Bridge and the Bay Bridge.