| ||For the similarly named tunnels that lead to the White House, see Utility.|
There are three entrances to the tunnels. The first is beneath a trap door near the Fairfax Ruins map marker. The second is a manhole cover a bit to the northwest. The third is another manhole cover a little ways west of the other manhole.
If entered via the trap door, the first room contains several ammo boxes and a mine box. There is a switch here which opens a hatch on the floor, leading to a small raider hideout.
The utility tunnels appear only in Fallout 3.