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  1. TC54

    NAVD29 adjustment to NAVD78

    Thanks for the response. Unfortunately, I don't think it solves my problem. To clarify my problem, I need to check to see if another consultant's design for a residential development will jive with the grading of my road design (i.e the design elevations on the property line between the road...
  2. TC54

    NAVD29 adjustment to NAVD78

    Does anyone know of the method or a reference document which explains how to adjust an elevation from one vertical datum to another? Specifically, I'd like to know how to adjust an elevation from NAVD29 to NAVD78 in the area of Toronto, Canada. Thanks

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