Sunken Sewer

The  is a rather small and due to many waste barrels heavily radiated underground location, containing some feral ghouls and possibly a Glowing One. It can be reached from the northern part of Dupont Circle.

Notable loot

 * U.S. Army: 30 Handy Flamethrower Recipes book can be found on top of an average safe.

Trivia
Sunken Sewer may be a reference to Sunken Sewers below the Imperial City in Elder Scrolls IV: Oblivion.

Bugs

 * With patch 1.1.0.35 on the Xbox360 the game may crash on exiting the Sunken Sewer.
 * Sometimes Followers can get stuck in the room with the barrels when trying to leave. They will not escape even if you fire/send them away. DO NOT go into the large room after the initial hallway opening with your companions. Have them wait in the hallway until you are ready to leave. If you already got them stuck in there, just tell to wait and push them all the way to the hallway.