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 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.