I have made it with his mod yes. But it doesn't need it to run :) The mod just gives you the option to modify your terrain in mods different than map making. The game already supports terrain modification in real time you just don't have those tools while building a city. That is why you don't need the mod :) . When you place that underpass. Your terrain will modify acordingly to it. But if you erase it afterwards... The terrain will go back to its normal state.

I could have just said "No". But I like to try and explain things tho I am usually bad at that xD

Are there other mods or assets necessary to run this mod?
Since you used Sims firehouse-mod to create this one.

Hmmm I am not really good with English... so would you describe what you mean with "dependency of a asset" I really didn't get that part...

@ Morrck: is there a dependency on mentioned asset (or other, for that matter)?
Kudos for this very nice piece of work.

yes I did :) there is a mod by sims firehouse that is for asset editor :)

Hi, I really liked this asset, but how do you managed to make the underpass? Did you used terraforming tools ins the editor?