Safety Inspection of In-Service Bridges and Transportation Related Structures. Regional.

WRA performs initial, routine, in-depth, and emergency in-service condition inspections of bridges, sign structures, noise walls, retaining walls and high mast light poles. Over 3,000 bridges, including both fixed span and moveable spans, and over 500 overhead sign structures have been inspected by WRA’s staff. The bridges include steel tub and I-girders (including fatigue sensitive details and fracture critical members), prestressed concrete girders, concrete slabs, deck and through trusses, arches, culverts, and timber bridges. Inspection services include the review of the previous report documentation, field inspection (including bridge scour evaluation), structural evaluation, report preparation, prioritized repair recommendations and cost estimates (when required), and updates to the Structure and Inventory Appraisal data. Load ratings are performed when required. Destructive and non-destructive evaluations can also be performed when required to ascertain in-depth information on the bridge condition.