Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Oroville main spillway damage 3x2

Insight | Inside Oroville Dam spillway design woes

Oroville Dam’s failed main spillway was designed by a graduate engineer with no prior experience, knowingly built on weak rock and hit by cost pressures during construction, a critical report has revealed.

Subscribe for full online access and get...

  • Full, instant access to all stories
  • Customised email alerts straight to your inbox
  • Monthly print magazine

Register for guest access to keep reading and get...

  • A free taste of other selected news stories
  • Daily email newsletters

Already have a subscription or ICE membership? or