@structboard: How do you connect a highway to a suspension bridge across a deep canyon? Two helical ramp towers — built from the gorge floor up. Foundation poured, rebar set, reinforced concrete rising level by level, two cranes working in parallel. Formwork stripped, asphalt laid, lane markings done. Each spiral tower handles both entry and exit in a single structure. Opening day: every lane packed. The engineering is in the geometry. Learn more 👉 https://structboard.com #structboard #civilengineering #bridgeengineering #suspensionbridge #helicalramp #constructiontimelapse #concretestructures #infrastructuredesign #structuralengineering #megastructure