Description

The Oroville Tunnel Portal was created at the time of the building of the Oroville Damn in California. It was a very busy line during the building of the damn. A horrific accident took place there in the 60’s in which two trains hit head on at the tunnel entrance. The tunnel portal is still there as far as I know unless  it was destroyed from the flood there in 2017. 

Here is the version with the retaining walls.  

SH & W does provide this portal without the retention walls also.