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  • Posted in: Member Forum

    I think it's important to note that, if it's an electrified RR, some care needs to be taken around steel ties regarding proper insulation/isolation between the rails and with regards to stray currents. Matt ------------------------------ Matthew ...

  • Posted in: Member Forum

    Had the same issue on the Van Wyck Expressway for Long Island RR. Special 7" thick concrete ties, under tie pad, and ballast mat were utilized on this very unique installation. WSP out of New York was the designer. Please reach out to me directly if ...

  • Posted in: Member Forum

    Hi all: 12 inch ballast depth is applicable to both timber and concrete tie. If a depth of 8 inch is given under concrete tie, it would be less and can be compensated with ballast mat. Wood tie is a good damper compared to concrete tie ...

  • Posted in: Member Forum

    Hi Farhad, I understand your concern and agree with you and all recommendations given by the community above. I may add a couple of points to help you on this: Please refer to the standard "Metrolinx General Guidelines Bridges" (RC-0506-04STR). ...

  • Posted in: Member Forum

    Paul, you beat me to it. Definitely need to consider maintenance and protection of the deck (and tie bottoms) during tamping operations. I'd highly recommend some sort of physical protection of any waterproofing that may be on the surface. We have ...

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