Chester County nbis bridge inspections

Orth-Rodgers & Associates, Inc. (ORA) has been retained by the Department of Transportation (PENNDOT) to perform periodic bridge inspections of 424 state owned bridges in Chester County, Pennsylvania. All inspections are to be completed in accordance with the National Bridge Inspection Standards.

All bridge inspections were completed by ORA’s PENNDOT Certified Bridge Safety Inspectors. Additionally inspectors working around railroads attended AMTRAK Safety Training.

ORA was required to inspect a wide variety of single and multi-span structures. These structure types include steel trusses, steel through girders, steel I-beams, prestressed concrete I-beams, prestressed concrete adjacent and spread box beams, cast-in-place concrete T-beams and slabs, concrete and stone masonry closed spandrel arches, concrete open spandrel arches, concrete box culverts as well as covered bridges containing both timer and steel members. These bridges crossed waterways, roadways and railways.

Several bridges required the use of traffic control procedures and specialized inspection access equipment including snoopers and bucket trucks. Other bridges have been accessed using ladders, boats and free-climbing. Access to bridges over railroads was coordinated through AMTRAK and Norfolk-Southern.