Enhancing Seismic Resilience: Developing Next-Generation Of Bridge Fragility Models For Oregon's Transportation Network

After a major earthquake, Oregon Department of Transportation (ODOT) emergency managers require immediate understanding of field conditions to coordinate response and dispatch bridge inspection resources. The ShakeCast alerting system enhances situational awareness by utilizing real-time ground-shaking maps from the United States Geological Survey and precalculated bridge fragility relationships to rapidly estimate bridge damage. The limitations of the current fragility models for Oregon's bridge infrastructure hinder post-earthquake emergency response and planning. Existing models are both obsolete and a poor match for Oregon’s bridge inventory. This may result in unrealistic estimations of regional seismic vulnerability. Addressing these limitations will enhance post-earthquake emergency response, restoration of network mobility, and capital resource allocation for seismic safety improvements. Developing next-generation parameterized fragility models tailored to Oregon's unique infrastructure is a pressing research need to ensure that Oregon will respond more quickly and efficiently after a widespread impact of a major seismic event, like a Cascadia Subduction Zone Earthquake.

Language

• English

Project

• Status: Active
• Contract Numbers:

  SPR 884

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Managing Organizations:

  Oregon Department of Transportation

  355 Capital St NE MS42
  Salem, Oregon  United States  97301
• Project Managers:

  Silverman, Sean

• Performing Organizations:

  Oregon State University, Corvallis

  Corvallis, OR  United States  97331
• Principal Investigators:

  Soleimani, Farahnaz

• Start Date: 20241001
• Expected Completion Date: 20270630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Bridges; Disaster resilience; Earthquakes; Risk assessment
• Geographic Terms: Oregon
• Subject Areas: Bridges and other structures; Maintenance and Preservation; Planning and Forecasting; Security and Emergencies; Transportation (General);

Filing Info

• Accession Number: 01964201
• Record Type: Research project
• Source Agency: Oregon Department of Transportation
• Contract Numbers: SPR 884
• Files: RIP, STATEDOT
• Created Date: Aug 28 2025 4:57PM