Here the billboard has been positioned on the south facing hillside north of the tracks. The roughed in culverts can be seen under the roadbed where the two legs of the wye come together. The prototype features bridges for the water crossings, but my compressed module could not accommodate those crossings, so I opted for 30" and 36" culverts.

This module represents Dalwor Junction on the Chicago, Rock Island & Gulf Railroad. The prototype location can be viewed on Google Maps here.