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 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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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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25 July 2012 ~ 1 Comment

Traffic on Stockton Street and Grant Avenue to Be Modified to Accommodate Central Subway Construction Near Union Square

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 […]

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21 June 2012 ~ 0 Comments

Traffic Alert: Nighttime closure of westbound I-80 onramp at 4th and Harrison starting Monday, June 25

Motorists traveling south on 4th Street will be directed to access westbound I-80 as shown above while the onramp at 4th and Harrison streets is closed. (Click on the map to enlarge.) Starting next Monday, June 25, the onramp to westbound I-80 at 4th and Harrison streets will be closed between the hours of 8 […]

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11 June 2012 ~ 2 Comments

Starting in SoMa: On 4th Street between Folsom and Howard, construction to prepare for tunneling

Construction is now underway on 4th Street near the intersection with Folsom Street. Construction to prepare for the installation of below-ground walls, called headwalls, has begun on 4th Street between Folsom and Howard streets, the site of the future Yerba Buena/Moscone Station.┬áThe work currently underway includes potholing and utility relocation. Headwall installation, which involves major […]

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