Structures

Structural Design Services

  • Highway Bridges over roads, railroads and water features of all kinds using steel and prestressed concrete.  Includes curved steel girder design.
  • Pedestrian bridges using steel, concrete and timber.
  • Steel truss bridge analysis and design.
  • Retaining walls, including concrete cantilever and mechanically stabilized earth.
  • Sound barriers including structure mounted, caisson mounted, and grade-beam mounted.
  • Culverts including 3-sided (rigid frame) and traditional 4-sided single cell boxes.
  • Foundation designs
    • Concrete Spread Footings
    • Deep Foundations (H-pile, Pipe pile, Drilled shaft)
    • Integral abutments
  • Sign Structures
  • Contractor services incuding deck removal sequence analysis, temporary falsework design, and general consultation.

NBIS Inspection Services

  • Bridges over water and roadways
  • Sign structures