Geotechnical Services for the LAX TWDE Existing Bridge Structure (2022-2023)
The project site is located east of LAX Terminal 1 at the intersection of World Way and Sky Way in Los Angeles, California. To enable the easterly extension of Taxiways D and E, the existing roadways and bridges must be demolished, including Sky Way Avenue of the Second Level Roadway Bridge (SLRB) and 96th Street Bridge over Sepulveda Boulevard.
The SLRB Analysis, to be performed by the Client, includes an evaluation of the stability and service conditions of the remaining sections of the SLRB.
GAI provided geotechnical services for this project Our scope of services is comprised of collecting field exploration data from the previously available reports performed by others; collecting laboratory testing data; determining Vs30 by reviewing the existing data and performing verification calculations to establish the most appropriate value for the project location; reviewing As-Built structural plans and coordinating with the project structural engineer/HNTB to determine and establish the structural properties of the existing Upper-Level World Way North (ULWN) bridge; performing geotechnical engineering analyses to evaluate seismicity at the site and provide Seismic Design Spectrum for the site and to provide design soil profile and input parameters for utilizing in engineering software to be used by the project structural engineer; preparing a geotechnical Foundation Report (FR) based on the collected data to support the structural analysis and remaining portion of the SLRB; and responding to the City of Los Angeles Department of Building and Safety’s (LADBS) review comments.
LOCATION: Los Angeles, CA
AGENCY/CLIENT: Los Angeles World Airports (LAWA)/LAX/HNTB Corporation