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Description
Bridge
infrastructure condition has been in the forefront of public concern due to the
increasing age of bridges, many built during the interstate era and nearing
their design life, with lack of needed investments. Bridge inspection, which is
predominantly visual, plays a major role in obtaining bridge condition data to
ensure safety and planning future work. While safety has been the primary focus
for bridge inspections and asset management, recent emphasis has also been on
preservation, reliability, and mobility. This requires changes to accommodate
low service interruptions and finding deterioration at early stages. Hence, nondestructive
testing and structural monitoring are increasingly becoming popular to
complement the visual inspection of bridges. This presentation will
discuss current bridge inspection and evaluation methods, recent changes, and future
trends.
Topical outline/timeline:
- Introduction to highway bridge infrastructure in the US (10 minutes)
- Current federal inspection guidelines and inspection process (10 minutes)
- Changing expectations and recent changes to guidelines (10 minutes)
- Future directions (15 minutes)
- Closure (5 minutes)
- Q&A (10 minutes)
- State the current highway bridge population in the US.
- Describe how highway bridges are visually inspected at present following federal standards.
- Explain how current expectations from the bridge inspection process have changed to accommodate a bridge management perspective.
- Identify upcoming changes to federal inspection standards .
- Discuss how NDE and structural monitoring is being used to augment visual inspections.