13 April 2012 ~ 1 Comment

Construction Update: Continued progress on utility relocation, tunnel site preparation


A worker inspects a reinforced steel structure at a work site on Stockton and Market streets.

Since our last three-week construction update, work to prepare the tunnel launch site for tunneling and to relocate utilities around Union Square has continued to progress.

In the next three weeks, the following work will be underway:

  • Union Square/Market Street Station Utility Relocation: Crews will continue to relocate utilities to prepare for construction of the Union Square/Market Street Station. We expect all utility relocations around Union Square to be completed by June 2012. Construction is scheduled seven days a week from 7 a.m. to 7 p.m., although night work may be necessary.
  • Tunnel Launch Site Construction: Work is continuing on 4th Street between Bryant and Harrison streets to prepare the site for tunnel construction. Crews are working to relocate utility lines and install guide walls at the site where tunneling will commence. Work hours are 7 a.m. to 5:30 p.m., Monday through Friday.

The complete, current three-week construction schedule for Union Square utility relocations is available here (PDF). We also post construction, auto detour and Muni impact information on our project Google Map.

Muni Service Impacts:

While utility relocation work is in progress around Union Square, the following Muni routes may experience delays:

  • 8 Shuttle/8X/8AX/8BX Bayshore Express
  • 38/38L Geary

The 30 Stockton and 45 Union/Stockton lines have been rerouted around the Stockton Street and 4th Street construction sites, effective January 21.

Traffic Detours:

While Union Square utility relocation work is in progress, only Muni buses, taxis, tour buses and delivery trucks will be permitted on Stockton Street between Post and Market streets.

Two traffic detour options are in place to allow for better access to the Union Square area and to aid the flow of traffic:


We appreciate your continued patience while construction is in progress.

Be Sociable, Share!

One Response to “Construction Update: Continued progress on utility relocation, tunnel site preparation”

Leave a Reply