Is there a way to build underwater tunnels?

[poke_ravi]

Everytime I try to build an underwater tunnel the game won't let me. What gives?

[Vandalen]

depends on the terrain you want to build. if it's not flat enough, you cant build on it. try a deeper lever or curves.

[PsySpy]

Not sure if it will help but try this:

http://steamcommunity.com/sharedfiles/filedetails/?id=415545176&searchtext=metro+tunnel

[Mack]

You can definitely build tunnels underwater. The big issue is 'cliffs' in the terrain, which will block a tunnel the same way that a mountain will block a road up the side. The solution is the same, work diagonally down the bank of the bed and try to find good 'landing' sites.

[grapplehoeker]

Originally posted by mack:

You can definitely build tunnels underwater. The big issue is 'cliffs' in the terrain, which will block a tunnel the same way that a mountain will block a road up the side. The solution is the same, work diagonally down the bank of the bed and try to find good 'landing' sites.

I have no problem with tunneling through any part of the terrain. Tunneling under water however depends on the depth of the water. You can only tunnel down 5 steps, so if that still isn't deep enough to pass under the water then it's back to bridges. For this reason I'm editing my maps to ensure the rivers, lakes, and waterways I want to use are shallow enough.