Statewide NBIS Inspection of Locally Owned Bridges

Location: Commonwealth of Pennsylvania

Client: Pennsylvania Department of Transportation

NBIS Bridge InspectionNBIS Bridge InspectionCCJM was selected for three consecutive four-year open end contracts to provide NBIS bridge safety inspections statewide for designated bridges owned by counties and municipalities throughout the Commonwealth of Pennsylvania.

Inspection responsibilities include field work and report preparation, including a bridge load rating/re-rating and/or posting evaluation and recommendations. Load rating information is updated for each structure as needed due to section loss, additional dead load, changes in legal loads, etc. Additional responsibilities include plan review, detailed field measurements, drawing preparation and computer analysis.

Bridges vary in length from 20 feet to 2,000 feet and are built of concrete, masonry, timber and steel. Work includes the subcontracting of access equipment, rigging, safety boats and traffic control. Of particular importance was determining the scour susceptibility of all bridges crossing waterways. Bridges were ranked to establish the order in which detailed scour analyses are to be completed.

Work orders have included the county-wide re-inspection of 58 bridges in Centre County, 78 State Park bridges for the Department of Conservation and Natural Resources, and 278 bridges in Lancaster County. We have also provided emergency inspection of utility owned bridges that had not been originally inventoried as part of the National Bridge Inventory but were carrying public traffic. Some work orders have been a single bridge inspection precipitated by complaints by the public.

A very important component of this project is the maintenance recommendations meeting with local officials to present the findings and expound on the recommendations contained in the reports. After the bridges in a jurisdiction have been inspected and the reports accepted by the Department, the Project Manager meets with the bridge owner and presents an overview of the findings in layman’s terms. The recommendations for maintenance or replacement are then discussed in detail. This ensures that the overall intent of the bridge inspection program – bridge safety – is the final result of the inspections.