BTB wrote:
Did my BFR yesterday and while going over the local sectional, I noticed
something and asked the instructor about it.

It was a dashed blank line, labelled 'underground pipeline'.

Now I have to ask - why if it is underground, is it on the chart ? What
is the possible value of it being there ?

BTB

It is there so that if you have an engine out nearby, you can put it
down in that straight and have a better chance of surviving the forced
landing as opposed to landing into the trees. The path is cleared of
trees (well big ones anyways) for vehecle access.

The Monk