Auburn Dam

Site of an abandoned dam project on the North Fork American River near Auburn, California, USA.

At a glance

SourceAuthorRoleIn one line
California’s Tallest Bridge Has Nothing UnderneathWesley Crumpturning pointThe never-finished dam that explains the bridge.

California’s Tallest Bridge Has Nothing Underneath — Wesley Crump (2025)

Source: Original · Readwise highlight

One of the first steps in the process was rerouting the American River.

  • Role: turning point
  • In the article: A tall concrete arch dam was authorised here in 1968. Crews built a cofferdam and diversion tunnel and grouted the foundation, but earthquake concerns, the Teton Dam collapse, cost and opposition halted it, and the river was returned to its channel in 2007.
  • Why it matters: Without the dam the bridge would never have been built so high; its abandonment is the story’s turning point.