Metro contractors are preparing to conduct a series of geotechnical field tests in the Century City area as a part of the Final Environmental Impact Statement/Environmental Impact Report (Final EIS/EIR) for the Westside Subway Extension. This work will build on the data gathered during the Draft EIS/EIR for the project and provide further soil and seismic information along the route of the Locally Preferred Alternative (LPA). In certain areas, noise and vibration tests will also be conducted. Following the tests, the data will be analyzed and used to make further informed decisions about subway construction.
During this next part of testing the work performed will consist of different types of testing. Weather permitting, testing will be performed:
Tuesday September 19 – Friday September 23; 9am – 3:30pm
Metro contractors will conduct work at Constellation Blvd between Avenue of the Stars and Century Park West.
Note: Should any work need to be cancelled and rescheduled, Metro will inform you of new work date(s)/time(s).
The equipment to be used during the field tests is described below:
Hollow Stem Drilling
Hollow-stem borings will be drilled using a truck-mounted drilling rig advancing a core barrel into the ground by spinning a 6- to 8-inch diameter casing with a drill bit into the ground to collect samples of the various soil layers. After the exploration is completed, the soil cuttings generated during drilling will be placed in drums, tested for adverse chemicals, and disposed of off-site on a daily basis. The work areas will be scanned for utilities prior to drilling, and the upper soils will be hand augered. At the conclusion of drilling, the hole will be filled with grout and its top patched with asphalt to match the surrounding grade.
What to Expect During Drilling:
Other Important Information
Comments may be submitted by:
Online: Complete our electronic Comment/Question Form
By U.S. Mail:
David Mieger, Project Director
DEO, Countywide Planning & Development
Los Angeles Metropolitan Transportation Authority
1 Gateway Plaza, M/S 99-22-5
Los Angeles, CA 90012
Phone messages are retrieved at least once every business day.
Please be sure to include all of your contact information in the body of your e-mail.
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