SCP-4XXX (unnamed)
rating: 0+x

Item #: SCP-4XXX Level 2/4XXX
Object Class: Safe Classified


A pedestrian crossing on SCP-4XXX and also the most prevalent location for SCP-4XXX-1 incidents.

Special Containment Procedures:

Under an agreement with PennDOT1, SCP-4XXX is to be indefinitely closed off under the guise of road construction, and any personnel researching on SCP-4XXX will be provided with temporary PennDOT employee IDs and apparel. All personnel is advised to be cautious and to follow all standard road safety procedures; any large transport or personal vehicles are prohibited in the vicinity of SCP-4XXX. Jurisdiction of SCP-4XXX will fall under the local Site-198 and MTF Rho-4 ("Crossing Guard"); only Level 2+ personnel are allowed access.


SCP-4XXX is an approximately 2.5km long stretch of Trellis Street in the city of Vannenburg, Pennsylvania. The anomalous effects of SCP-4XXX manifest whenever a pedestrian attempts to cross 4XXX without having looked to the right to check for approaching incoming traffic. When the pedestrian (designated SCP-4XXX-A) reaches the middle of the road, they will be struck by a vehicle weighing 1.7 tonnes on average. This incident (designated SCP-4XXX-1) will usually result in fatal injuries to SCP-4XXX-A. The striking vehicle is always present in the area near the location of SCP-4XXX-1; during the incident, SCP-4XXX-A will always be obscured to the driver of the vehicle until approximately a second before the collision. This effect may manifest anywhere along SCP-4XXX's length, although the pedestrian crossing by Avery Bus Stop (pictured above) is the most prevalent location for SCP-4XXX-1 incidents.

Around a month after its initial discovery, SCP-4XXX's anomalous properties changed: see Addendum 01 for more details.

Item History:

SCP-4XXX was brought to the Foundation's attention on 4/22/2019 when 4 fatal pedestrian strikings occurred over the span of the previous 5 days. Afterward, SCP-4XXX's anomalous properties were confirmed with the death of a Rho-4 agent involved with the initial containment effort and through subsequent testing.

It is unsure whether or not SCP-4XXX's anomalous effect is connected to a recent partial repaving of Trellis Street completed on 4/17 by the country-wide company Caleb-Maven Paving (designated GoI-1229) - the area paved correlates to the length of SCP-4XXX. Research into Caleb-Maven Paving is currently underway.

Addendum 01: SCP-4XXX Update

On 5/21/2019, two Foundation researchers were involved in a 4XXX-1 incident after they failed to look left before crossing SCP-4XXX-1. Currently, it appears that SCP-4XXX's anomalous effect manifests if pedestrians do not look both ways before crossing. It is unclear if this modified effect is permanent, but it is theorized that there is a correlation between SCP-4XXX and personnel only looking right before crossing.

Several more possible SCP-4XXX-like anomalies, also paved by Caleb-Maven Paving, have been located but at this moment they have not been confirmed to be anomalous.