Below grade corridor features

rspearYL2SX — Fri, 06 Feb 2026 23:08:44 GMT

How do you handle below grade features in your corridor like walls and footing below grade?

I model them in the corridor for design and production purposes but when I bring the corridor into infraworks, I have them coded to transparent but the terrain still reconizes them and ****izes things adjacent to my walls.

I attempted to fix with a grading area in infraworks but it's so tedious of a task and tends to introduce more issues with the terrain.

Any thoughts would be appreciated.

Re: Below grade corridor features

Karsten.Saenger — Tue, 10 Feb 2026 08:16:51 GMT

Hi @rspearYL2SX ,

can you send screenshot to show the issue?

If you model a corridor in Civil 3D and load it into InfraWorks, the corridor is a static object in InfraWorks. All transparent parts of the corridor are still recognized and InfraWorks adapts the terrain.

Regards,
Karsten.

topic Below grade corridor features in InfraWorks Forum

Below grade corridor features

Re: Below grade corridor features