Construction of a major excavation known as a launch box is underway on 4th Street between Bryant and Harrison streets. At nearly 500 feet long, 50 feet wide and up to 40 feet deep, the launch box will take up most of the block. In the next three weeks, work to prepare for tunneling will […]
New Central Subway construction is beginning soon around Union Square. Beginning Monday, July 30, Stockton Street between Ellis and Geary streets will be closed to all vehicles except emergency vehicles to accommodate construction of the Central Subway tunnel and Union Square/Market Street Station. To facilitate local access to Union Square, Grant Avenue between Geary and […]
At the site where tunneling will begin next year, contractor Barnard Impregilo Healy Joint Venture is making progress in constructing below-ground walls around the perimeter of the tunnel launch box – a major excavation almost as big as a city block. At other points along the Central Subway alignment, Union Square utility relocation is progressing toward completion, and […]
To accommodate Central Subway construction, the Muni 8X Bayshore Express bus line will be re-routed in July. Starting Wednesday, July 11, the southbound 8X/8AX/8BX Bayshore Express and 91 Owl Muni bus lines will be re-routed to accommodate Central Subway construction in Union Square and SoMa. The re-routes may remain in effect throughout the duration of the […]
