Bridge Inspection

TranSystems has a national reputation for excellence and innovation in the inspection and evaluation of highway, railroad, and transit bridges. This reputation has been earned through our performance of inspections on landmark bridges; reinforced by the numerous state DOTs and agencies who have contracted us to perform inspection programs for their bridge inventories and provide bridge inspection training for their in-house inspection staff; and proven by our selection to “write the books” for manuals, codes, and standards which govern the inspection and evaluation of the nation’s highway bridges.

TranSystems engineers are pioneers in the performance of routine, fracture critical, special member, and damage inspections for routine, complex, and difficult access structures. Our staff is familiar with the operation of all types of specialized lift equipment, design and use of rigging systems, and specialists in protected bridge climbing techniques. Our engineers plan the most appropriate access method for each structure, to reduce inspection time, increase structure accessibility, improve safety and reduce disruption of normal traffic patterns and operations.

We are proficient in the calculation of load ratings for structures ranging from simple span stringer bridges and culverts to the most complex of bridge types, including: curved steel and prestressed/post-tensioned concrete bridges; steel trusses and complex box girders; suspension bridges; and all types of movable bridges. Our engineers have in-house capability to analyze 2-D or 3-D structural systems under static or dynamic loading.  We are experts using a number of structural analysis programs giving us the flexibility to analyze complex structures, either in their entirety or sub-assemblies. 

On the strength of our nationwide bridge inspection and evaluation experience, we have been selected by the Transportation Research Board (TRB) under the National Cooperative Highway Research Program (NCHRP) to author the following manuals, which specify the procedures and methodologies for the inspection, load rating and evaluation of over 600,000+ fixed and movable highway bridges nationwide:

  • AASHTO The Manual for Bridge Evaluation
  • AASHTO Manual for Condition Evaluation of Bridges
  • AASHTO Manual for Condition Evaluation and Load and Resistance Factor Rating (LRFR) of Highway Bridges
  • AASHTO Movable Bridge Inspection, Evaluation, and Maintenance Manual
  • NCHRP Manual for Bridge Rating Through Load Testing

In addition to selecting us to inspect their bridges, several state DOTs have acknowledged our bridge inspection skills by engaging TranSystems’ staff to provide training programs, courses, and seminars on bridge inspection, rating and rehabilitation for their own bridge engineering staff.

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