Our structural engineering team specializes in both vertical and horizontal applications for a variety of project types, including pedestrian, vehicular, and railroad bridges; buildings; retaining walls; culverts; and recreational facilities.

Key Services

Bridge Design

  • Highway
  • Pedestrian
  • Vehicular
  • Tunnels

Bridge Inspection Services

  • Concrete
  • Concrete Arch
  • Truss
  • Trail
  • Treated Timber
  • Glulam
  • Steel Girder
  • Native Log

Special Services

  • Bridge Load Ratings
  • Retaining Walls
  • Feasibility Studies
  • Code Compliance
  • Structural Analysis
The expertise of the personnel assigned to this project was exceptional. Construction challenges for the unique sites were identified early and remained a consideration throughout the design process. DJ&A was always responsive in addressing our correspondence and our needs. They also added value by identifying logistical challenges that would likely…
- Della Koelling // Contracting Officer for for Edna Bay Bridge Designs, Tongass National Forest