Bridge Engineering


"Our diverse and extensive expertise allows us to consistently deliver innovative yet practical solutions to bridges of all sizes, construction, and vintage."

— Brian Santosuosso, Principal, Unit Manager, and Northbrook Region Director

Bridge structures are subject to harsh conditions and require ongoing maintenance and rehabilitation to achieve long-term performance. Through the investigation of thousands of bridges and notable bridge failures, WJE bridge engineers have learned that improved bridge construction and rehabilitation designs are accomplished through a better understanding of the problems. Our knowledge of bridge performance is supported by expertise in structural, electrical, and mechanical engineering as well as laboratory and field testing and instrumentation.

WJE bridge engineers have extensive experience conducting field investigations of bridge deck, superstructure, and substructure problems involving a wide range of bridge materials and structure types. In addition to traditional highway and rail bridges, WJE has special expertise in heavy movable structures, including bascule, swing, and vertical lift bridges.

Supported by extensive laboratory facilities, nondestructive testing capabilities, and in-house expertise in WJE’s Janney Technical Center, WJE professionals are routinely called upon to complete fatigue and fracture investigations, corrosion assessments, and collapse investigations. Our engineers are also experts in the design of new movable bridge systems, shop and field inspection, preparation of procedures for machinery installation, and electrical testing and construction support services.

  • Structural evaluation and load rating
  • Fatigue and fracture studies
  • Failure investigation
  • Corrosion protection and durability studies
  • Repair and rehabilitation design
  • Corrosion Assessment and Service Life Evaluation (WJE CASLE™)
  • New construction and repair design services for movable bridges
  • Balance testing and analysis
  • Safety inspection and nondestructive testing
  • WJE Plannotate®
  • Seismic evaluation and retrofit design
  • Instrumentation and field testing
  • Mechanical, electrical, hydraulic services
  • Bridge management advisory services