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OTREC-RR-11-22 By Peter Dusicka & Selamawit T Mehary
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This project developed a seismic model for Oregon truck routes using Risk for Earthquake Damage to Roadway Systems (REDARS2) and HAZUS-MH. We refined data from the first model to more realistically... More > represent bridge inventory, address the seismicity of the Pacific Northwest (PNW), conduct sensitivity analyses of soil data and develop a seismic network model of Oregon bridges to assess roadway vulnerability. Assumptions were reviewed and Oregon data was incorporated to replace defaults for economic loss. The largest probable PNW earthquake is a subduction zone earthquake. A shortcoming of REDARS2 is its inability to incorporate subduction zone attenuation. USGS shakemaps for Cascadia subduction zone events are incorporated to add that capability. Analyses of the network incorporating bridges and post processing of the data with input from Oregon DOT engineers resulted in recommendations for bridge route priorities. More data and cost-benefit analyses are needed for final retrofit decisions.< Less

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Paperback: $19.00
Inside Secrets Inside Secrets By Joseph Stumpf
Paperback: $3.25