Archive | Traffic

07 December 2012 ~ 0 Comments

Construction update: Subsurface wall construction underway at new SoMa location; construction paused in Union Square, North Beach

The tunneling contractor has begun installing below-ground walls to prepare for tunneling at this site on 4th Street between Howard and Folsom streets. Since our last update, construction in Union Square and North Beach has paused for the holiday season, while work at two sites in SoMa has continued to move forward. In addition, work […]

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26 November 2012 ~ 0 Comments

Photos: Union Square, North Beach construction sites restored for holiday season

Last week Central Subway crews restored portions of Stockton Street and Ellis Street in Union Square and Columbus Avenue in North Beach to prepare for a holiday season construction pause. On these blocks, roadways and pedestrian walkways were returned to their regular use in time for Thanksgiving. Check out these photos of restoration in progress […]

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19 November 2012 ~ 1 Comment

Construction Update: Central Subway construction during the holiday season

This construction site near Union Square will be restored and reopened to traffic during the holiday season. During the holiday season, construction at some currently active Central Subway construction sites will pause, with roadways and pedestrian walkways restored to regular use. At other sites, construction will continue. This blog post provides a summary of construction […]

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09 November 2012 ~ 1 Comment

Construction update: New traffic configuration starting in North Beach, full closure of 4th Street implemented under I-80 overpass

Construction at the site where tunneling will begin next year. Along the Central Subway Project alignment, tunnel pre-construction has continued to progress at the four active construction sites. Since our last update, crews have completed construction of a sewer manhole and a sewer line in North Beach, and a portion of 4th Street has closed […]

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19 October 2012 ~ 0 Comments

Construction Update: Tunnel prep work progressing, full closure of 4th Street under I-80 overpass starting soon

This construction site on Stockton Street recently hosted an event to celebrate approval of major federal funding for the Central Subway. Tunnel pre-construction remains underway at four construction sites along the Central Subway Project alignment, including the site shown above, which last week hosted a ceremony to celebrate approval of federal funding to extend the […]

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27 September 2012 ~ 0 Comments

Traffic Alert: New traffic configuration starting Saturday in SoMa (4th Street between Harrison and Bryant)

The traffic configuration near this construction site in SoMa will be modified starting Saturday. Starting Saturday, September 29, a new traffic pattern will be established on 4th Street between Harrison and Bryant streets, at the site where tunneling will begin next year. To facilitate construction in the northwest and southeast sections of the block, vehicles […]

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07 September 2012 ~ 0 Comments

Construction Update: New traffic configurations in SoMa, North Beach as tunnel preparation progresses

This block of Columbus Avenue in North Beach is temporarily restored for traffic at the end of each work day. With autumn just around the corner, tunnel pre-construction continues to move forward in SoMa, Union Square and North Beach. As tunneling contractor Barnard Impregilo Healy JV completes work along the alignment, new traffic configurations are […]

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31 August 2012 ~ 1 Comment

Traffic Alert: New traffic configuration starting next week in SoMa

To avoid traffic congestion on this section of 4th Street, we suggest using the detours described below. As tunneling contractor Barnard Impregilo Healy Joint Venture continues to make progress on┬átunnel pre-construction work, traffic configurations at a construction site in SoMa will be modified next week, starting Tuesday, September 4. No Central Subway construction will occur […]

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06 August 2012 ~ 6 Comments

Utility relocation starting in North Beach on August 13

Central Subway construction will take place on this block of Columbus Avenue near Washington Square Park. Construction associated with the Central Subway tunnel will begin August 13 in North Beach. The work involves relocating utility lines on a half-block section of Columbus Avenue between Union and Powell streets. The Central Subway tunnel is planned to […]

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27 July 2012 ~ 0 Comments

Construction Update: Tunnel contract work starts next week in Union Square area

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 […]

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