3D legal descriptions or easements

[pls7809]

We have a requirement for an aerial easement for a bridge that we need to prepare. Does anyone have any samples of one they can post up here? It will have an upper and lower limit.

Thanks.

[land butcher]

Some years back someone on here did something similar in Los Angeles for a building whose 2nd floor would encroch over the street R/W.

I think they noted specific points such as TC or back/walk with elevations on bw and the structure directly overhead and the BM data
The BM data is a reference as the important part is the elev difference between the ground and the structure.

This a RR requirement?

[pls7809]

Yes. For a future RR bridge.

[BoundaryMan]

You typically depict a plan view with a specific horizontal controlled boundary; and the vertical boundary will be defined by elevation referenced to a local bench mark. The vertical boundary will be in between lower elevation of xx.xx’ & upper elevation of xx.xx’. Similar to condo plans.

[Propst]

Chapter 14 should help.