Vault 99

Vault 99 is located in Newport News.

Experiment
The Vault 99 experiment was to study how the residents reacted to numerous technical failures. The vault was intentionally designed poorly, with the machinery designed to break down periodically. This would often lead to flooding and power outages.

Result
Vault 99 was maintained by its residents for many years until, in 2259, Overseer McConnel finally makes the decision to abandon the vault. The residents flee to Newport News, where they begin to adapt to the Virginia Wasteland. McConnel determines that they should take a hostile approach, and thus the Newport Raiders was formed.

In 2276, the vault began to flood the streets of Newport News. In response, the Newport Raiders walled the vault entrance with concrete, shutting it off from the outside world forever.