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

Horizontal Key Services

Bridge Design

  • Highway
  • Pedestrian
  • Vehicular
  • Trail
  • Tunnels

Bridge Inspection Services

  • Routine Bridge Inspections
  • Fracture Critical Bridge Inspections
  • Trail Bridge Inspections

Special Services

  • Bridge Load Ratings
  • Retaining Structures
  • Feasibility Studies
  • Code Compliance
  • Structural Analysis

Vertical Key Services

Building Design

  • Wood Frame
  • Steel Frame
  • Concrete Masonry
  • Cast-in-Place Concrete
  • Precast Concrete
  • Shallow Foundations
  • Deep Foundations

Building Rehabilitation

  • Historic Retrofit and Rehabilitation
  • Remodel
  • Seismic Stabilization

Special Services

  • Existing Building Structural Assessment
  • Appurtenant Structures
  • 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