The sewers have three main entrances. One is opened after the fight with the deathclaw, and the other two can be found in the alleyways of Concord. The system of tunnels is home to a number of creatures.
The deathclaw entrance leads past a few small rooms into the main sewer line. Continuing through the sewer, there is a metal catwalk that spans across the water and connects the other exits. Further along, there is a single mirelurk guarding assorted loot and a copy of Taboo Tattoos.
- Taboo Tattoos issue #10 - In the scavenger's sleeping area, close to the steamer trunk, located in the western area near the exit stairs.
- Fusion core - At the western end of the water drain, behind a pipe.
- Two Vault-Tec lunchboxes - One is next to the fusion core. The second is near the 'deathclaw' entrance, following the pipes to a room on the left.
When at this location, companions make comments, which are activated at two locations: the main pipe room and in the tunnel next to where the deathclaw can be heard (the latter only prior to the deathclaw encounter in When Freedom Calls).
|Cait||Main pipe room||""|
|Codsworth||Main pipe room||""|
|Curie||"What is that noise? Oh, it is some sort of animal."|
|Danse||Main pipe room||""|
|Deacon||Main pipe room||"I think we're right under Concord."|
|"Shit. Deathclaw. Don't wake it."|
|John Hancock||Main pipe room||""|
|Robert MacCready||Main pipe room||""|
|Nick Valentine||Main pipe room||""|
|Piper Wright||Main pipe room||""|
|Preston Garvey||Main pipe room||""|
|X6-88||Main pipe room||""|
Concord civic access appears only in Fallout 4.
Behind the scenes