Help! Building things on a slanted surface (a bridge)

[dillydadally]

I'm trying to build a multiplayer map on a large bridge. Unfortunately, what I thought wouldn't be too tough of a map is becoming nearly impossible because of one issue - the slight slant of the ground. A bridge has a slight arch shape. Well, it's hard enough to make an arch shaped ground and I got into that by painstakingly placing together piece after piece with slight changes in slant. However, part way through this I realized the next step was impossible!

Everything I build has to be placed on this slanted surface. Sidewalks need to follow the ground perfectly, etc. I don't know how to easily place items on a slanted surface. In particular, surfaces that follow the whole length of the bridge (ie. sidewalk, side railing, etc.) seem utterly impossible. Can anyone think of the best way to do this? Is there a way to slant a brush to match an already added brush? (I tried the "End" key and it dropped it not slanted on top of the slanted surface).

Thanks in advance for your comments.

[Molkien]

You can rotate the mesh/brush manually to align with the ground. Although I'm not exactly sure if that is what you are looking for. Perhaps a screenshot could help explain your situation a little better.

[dillydadally]

Yeah, I've got that answer a lot (just rotate it to align with the ground). That will work for most items, like cars and such, but the main structure of the bridge is pretty complex. It's modeled after the Brooklyn bridge, so there's kindof two layers - a layer for the cars and on top of that for pedestrians. The structure is complex enough to make rotating everything manually a royal pain. I was wondering if there was an easier way to do it (like a shortcut key that will rotate an object to match the rotation of another object)

[NeoNautica]

Best bet would be to make the bridge in a 3D program (max, maya, etc) and import it in as a static mesh. At least thats how I make complex objects...