In San Francisco, earthquake hazard is increased for bridges and highways because ____.
A)they use poured concrete without reinforcing bars
B)their support columns are not sheathed in steel
C)many are built on soft mud and clays
D)the supports are anchored to bedrock
E)the weight of vehicles increases the load on the structure

Question

Quizplus · Accepted Answer

Many bridges and highways in San Francisco are built on soft mud and clays, which can amplify seismic waves and lead to greater movement during an earthquake, increasing the hazard.

In San Francisco, Earthquake Hazard Is Increased for Bridges and Highways