Webster Street and Posey Tube Tunnels Underwater - Oakland - California - 4K Infrastructure Drive

A drive through the Webster St. and Posey underwater tunnels that connect Oakland and Alameda. Filmed: September 2025 Follow on Instagram:   / mileagemike   Main Channel:    / @mileagemike485   Cities Explored: https://www.google.com/maps/d/edit?mi...