How to create a 3D Solid from a surface along a curved path?

Hello everyone, I am looking to generate a solid in Dynamo using a surface along a curved path. Is there a good method to achieve this? My surface has voids, similar to the one shown in the image below. Thank you very much for your help, appreciate it!

Hello @1427648137 and welcome to the forum…something here could probably be a start…

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if you mean creat bridge or any linear str. follow this post and video steps:

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If I don’t use Civil 3D nodes, and also don’t subtract one solid from another directly, is there another way? Is there a method to directly generate a solid from the surface in the image along a curved path? Thank you, everyone.

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dont think so thats why i try take the profiles perimeter curves and transform and sweep…

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