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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

Retaining Wall Engineer



Andrew Tominaga

Retaining Wall Asset Management Specialist




 Program Resources
Other Resources
Guidance and Resources
MSE Retaining Wall Templates (MicroStation Drawings)