Advertisement
Help Keep Boards Alive. Support us by going ad free today. See here: https://subscriptions.boards.ie/.
If we do not hit our goal we will be forced to close the site.

Current status: https://keepboardsalive.com/

Annual subs are best for most impact. If you are still undecided on going Ad Free - you can also donate using the Paypal Donate option. All contribution helps. Thank you.
https://www.boards.ie/group/1878-subscribers-forum

Private Group for paid up members of Boards.ie. Join the club.

What are these extra rails?

  • 30-03-2015 11:42AM
    #1
    daymobrew
    Registered Users, Registered Users 2 Posts: 6,680 ✭✭✭


    On the Maynooth line near 12th Lock in Castleknock there is a tiny stretch of track with 2 rails inside the main rails. What are these for?

    Location: https://goo.gl/maps/swtxi - just west of the bridge over M50.

    Photos attached.


Comments

  • #2
    flyingsnail
    Registered Users, Registered Users 2 Posts: 2,787 ✭✭✭flyingsnail


    They are rails to help contain any derailment, you normally see them on bridges or where the rail line is close to a sheer drop


  • #3
    Seanmk1
    Registered Users, Registered Users 2 Posts: 119 ✭✭Seanmk1


    flyingsnail wrote: »
    They are rails to help contain any derailment, you normally see them on bridges or where the rail line is close to a sheer drop

    At this point, the line crosses the M50 on a curve. The check rails help prevent what would be a very nasty derailment


  • #4
    GM228
    Registered Users, Registered Users 2 Posts: 8,917 ✭✭✭GM228


    Seanmk1 wrote: »
    At this point, the line crosses the M50 on a curve. The check rails help prevent what would be a very nasty derailment

    The idea being if a train derailed the inner rails would hopefully catch the wheels stoping anything from falling over the bridge.

    GM228


Advertisement