Engineer's Line References (ELRs)

Mileages

Last update 4 June 2026

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Mileages are given in the form miles.chains unless stated otherwise. Figures prefixed with ≈ are approximate, those in parentheses are not on this route but are given for reference. Reference to 'start'/'end' of an asset are as read down the page.

MJR Morlais Junction to Rhydycar Junction

  18.75	Morlais Junction with POL (18.75) and MEX (19.33)
  19.53	start of Pontsarn viaduct
  19.60	end of Pontsarn viaduct
  19.64	PONTSARN
  21.29	CEFN COED formerly CEFN
  21.33	start of Cefn viaduct
  21.45	end of Cefn viaduct
  22.39	HEOLGERRIG
  22.70	Cyfarthfa Ironworks Junction with Cyfarthfa branch and Llwyncelyn Junction with LLZ
  23.44	Ynysfach Junction with YNF (0.00)
  23.56	Rhydycar Junction with MER (5.59)