FlyAway-Van Nuys Bus Terminal and Parking Structure, Van Nuys, CA
FlyAway-Van Nuys Bus Terminal and Parking Structure, Van Nuys, CA


Van Nuys Airport

Start Date

November 2000

Completion Date

July 2003

DYA Client


Project Cost


Project Description

Diaz•Yourman & Associates (DYA) provided geotechnical services for a proposed flyaway terminal.  The proposed project included a one-story terminal building, a five- to seven-story parking structure, access roads for buses and automobiles, and on-site and remote surface parking areas.  The access road design considered both automobile and heavy bus traffic.  DYA provided recommendations for shallow and deep foundations for the terminal building, deep foundations for the parking structure, asphalt and concrete pavements for the access roads with heavy bus traffic, and asphalt concrete (AC) pavement for the surface parking area.

V. R. (Nadesh) Nadeswaran, PE, GE – Geotechnical Manager

Allen M. Yourman, Jr., PE, GE – Geotechnical Principal

Somadevan Niranjanan, PE, GE – Geotechnical Engineer

Gary K. Gilbert, PE, GE – Geotechnical Engineer

Our Services


  • Site and route evaluations
  • Geologic hazards
  • Seismic design
  • Site characterization
  • Subsurface drainage
  • Grading
  • Ground improvement
  • Slope stability
  • Foundations
  • Dynamic analyses
  • Pavements
  • Instrumentation


  • Material sources
  • Construction observation and testing
  • Verification of anticipated conditions
  • Evaluation of changed conditions
  • Foundation installation
  • Instrumentation
  • Claims evaluation


  • Site characterization
  • Remediation
  • Solid and liquid waste disposal
  • Landfill
  • Aerially Deposited Lead (ADL) Studies
  • Phase I Initial Site Assessments (ISA)
  • Phase II Hazardous Waste Studies
  • Sustainability


  • Forensic investigation
  • Litigation support

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