Bob Ortblad warns the Interstate Bridge Replacement's planned S-curve approach will be more dangerous than San Francisco's Bay Bridge detour that killed multiple drivers. The engineer argues the 1,100-foot radius curve combined with icy conditions and steep grades creates a recipe for disaster, calling speeds over 40 mph "engineered manslaughter." He advocates for an immersed tunnel alternative that would eliminate safety risks while providing earthquake protection and weather shielding for Vancouver commuters. https://www.clarkcountytoday.com/opinion/letter-interstate-bridge-replacement-design-is-engineered-manslaughter/ #IBR #InterstateBridge #BridgeSafety #Transportation #Vancouver #ClarkCounty #Engineering #TunnelAlternative #PublicSafety #WashingtonState