A short introduction to this album.

A short introduction to this album.

How the Silver Bridge and the Hi-Carpenter Bridge differed from other suspension bridges in one crucial aspect.

How the Silver Bridge and the Hi-Carpenter Bridge differed from other suspension bridges in one crucial aspect.

Why it's safer to incorporate more eyebars than are actually needed, to bear the weight of the bridge.

Why it's safer to incorporate more eyebars than are actually needed, to bear the weight of the bridge.

How the use of a new high-strength steel led to mistaken assumptions about safety.

How the use of a new high-strength steel led to mistaken assumptions about safety.

How an investigation identified where the failure had occurred. A recovered eyebar is examined up close.

How an investigation identified where the failure had occurred. A recovered eyebar is examined up close.

How increasing traffic and freezing temperatures triggered the failure. An eye-witness account of the collapse.

How increasing traffic and freezing temperatures triggered the failure. An eye-witness account of the collapse.

How an undetected 3mm crack formed over 39 years weakened the eyebar, and a forensic deconstruction of what happened during the accident.

How an undetected 3mm crack formed over 39 years weakened the eyebar, and a forensic deconstruction of what happened during the accident.

The legacy of the Silver Bridge Disaster.

The legacy of the Silver Bridge Disaster.