Faultline: Seismic Science from the Epicenter
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Seismically safe freeways
from the Retrofitting page in Damange Control

Earthquakes can devastate bridges and take down highway overpasses. Older structures are vulnerable at their joints and columns. This drawing shows some of the techniques used in retrofitting bridges to help them withstand a strong quake.
Diagram: CA Dept. of Transporation

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Retrofitting a freeway overpass


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