Reply to "Bridge too low for CSX trains in Delaware"

Without knowing what occurred when the DelDot Engineering Department approved construction drawings, if questions arose about height elevation or clearance dimension measured from what reference point the CSX Mechanical or Engineering Department should have been contacted for clarification.  All of the freight and passenger car general arrangement drawings that I have ever seen had all vertical dimensions measure from top of rail(TOR) for heavy and light cars, not from roadbed grade.