i'm seriously missing something

[seven_tech]

ok, i have two corridors and have also now built an intersection in civ3d 2010. my aggrevation is that i still have two seperate surfaces. i know there is a way to combine two surfaces to make them one in 2009 but can't remember how to do it. how do i get the two corridors to become one surface? please, somebody...anybody....help....

[brainman1000]

Either paste one into the other or paste both of them into a third surface.

[sinc]

It's possible that your primary problem is that you used two Corridors. There are times that you want to use multiple Corridors, but it sound possible that you may have gotten better results this time if you had done everything in one Corridor, with multiple Baselines. Then you could create one single Surface from the entire Corridor.

But since you already have two Corridors and two Surfaces, you might also still be able to get what you want by pasting both Surfaces into a new Surface, like Brainman suggests.

[seven_tech]

ok, the one corridor option sounds good to me.