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Retaining Structures
Geo-Environmental Section Retaining Structures Program is responsible for developing and maintaining Chapter 15 Retaining Structures in the ODOT Geotechnical Design Manual (GDM), construction specifications, standard drawings and details, and standards of practice for retaining structures. Core functions in this program include:
  • Statewide technical expertise
  • Standard and practices
  • Preapproval of proprietary retaining structures
  • Training
Retaining structures engineering, including:
  • Selection of wall type
  • Site conditions
  • Construction materials
  • Design loads
  • Internal, external, overall, and compound stability
  • Seismic design
  • Interaction between retaining walls and other structures, such as bridges
  • Drainage
  • Erosion and scour
  • Corrosion
  • Obstruction avoidance
  • Proprietary and nonproprietary walls
  • Plans and Specifications
  • Constructability
  • Design life
  • Maintenance
  • Asset management
  • Safety
  • Freight mobility
  • Environmental considerations
  • Cost analysis
  • Aesthetics


Sophie Brown - Sophie.Brown@odot.state.or.us
Retaining Wall Engineer
Organizational Chart
Or contact by phone at:  (503) 986-3778


 Program Resources
Other Resources
Manuals, Procedures, Practices 
Sample Documents  ODOT GDM Appendix 15-D
Retaining Wall Committee (ODOT Access Only)
Standard SOW's 
Retaining Wall References 
Training Modules  MSE Retaining Wall Templates (MicroStation Drawings) 
Standard Specifications 
Standard Drawings & Details