SCP Foundation
The entrances must be sealed and kept under surveillance at all times. During testing, under no circumstances are personnel to enter SCP-903 or attempt to cross it. Any test subject or item that has passed through or emerges from SCP-903 must be immediately destroyed once testing is concluded.
Description: SCP-903 is an incomplete Site-19 utility tunnel that connects the SCP Containment Wing with the Lambda Laboratory Wing. The tunnel is three meters in diameter, fifty meters long, and buried approximately five meters underground. Because of its incomplete nature, SCP-903 is an empty concrete tunnel that contains no piping, wiring, or other utility equipment. SCP-903 also contains an old rail system that consists of a single monorail that spans the entire length of SCP-903.
SCP-903 was originally used as a discreet and secure method of transporting SCPs from the Containment Wing directly to the Lambda Laboratory Wing. However, this practice was discontinued shortly after Incident 903-1, where the presiding personnel violated standard operating procedure and transported several SCPs at once, rather than one at a time. The resulting incident is most likely what caused SCP-903 to obtain its current anomalous properties.
