Went with some friends to this drain located behind a local hotel! It seems that the drain turns and follows the highway for as far as we were able to go, with no end in sight!

1

2

3

4

5

6

Thanks for checking out my stuff!

Great photos! I've been to a few drains like that, where they seem to just go on forever without any interesting features; usually I just go halfway and leave the rest alone if I don't have all day and/or it's nearing dark.

That place looks like it has been tagged up hard. The few bigger pieces look like the only interesting ones.