| 03/08/1846 | Newport, Abergavenny and Hereford Railway
Incorporated. Tramroads the Llanvihangel Railway, Grosmont Waggonway and Hereford Railway purchased. |
| / /1847 | Newport, Abergavenny and Hereford Railway
Act for Taff Vale Extension passed. Line from Coedygric North Junction to the Taff Vale Railway at Quakers' Yard. |
| 02/01/1854 | Newport, Abergavenny and Hereford Railway
Abergavenny opened. |
| 02/01/1854 | Newport, Abergavenny and Hereford Railway
Opened from Hereford Barton to Coedygric on the Monmouthshire Railway and Canal Company. Worked by the London and North Western Railway. |
| 24/07/1854 | Rhymney Railway
Act for a line from the Rhymney Iron Works to the Taff Vale Extension of the Newport, Abergavenny and Hereford Railway at Hengoed. |
| 31/12/1854 | Newport, Abergavenny and Hereford Railway
Takes over its own working. |
| 31/12/1855 | Railway Clearing House
By this date, Cork and Bandon Railway, Crieff Junction Railway, Dublin and Belfast Junction Railway, Dublin and Drogheda Railway, Forth and Clyde Junction Railway, Furness Railway, Great Southern and Western Railway, Irish South Eastern Railway, Killarney Junction Railway, Leeds, Bradford and Halifax Junction Railway, Leven Railway, London and South Western Railway, London, Tilbury and Southend Railway, Monkland Railways, Monmouthshire Railway and Canal, Newport, Abergavenny and Hereford Railway, Norfolk Railway, North and South Western Junction Railway, Oxford, Worcester and Wolverhampton Railway, Peebles Railway, Perth and Dunkeld Railway, Shrewsbury and Hereford Railway, St Andrews Railway, Ulster and Dundalk Railway, Waterford and Kilkenny Railway and Waterford and Limerick Railway join. |
| / /1860 | West Midland Railway
Newport, Abergavenny and Hereford Railway
Oxford, Worcester and Wolverhampton Railway
Worcester and Hereford Railway
Newport, Abergavenny and Hereford Railway, Oxford, Worcester and Wolverhampton Railway and Worcester and Hereford Railway merge to form the West Midland Railway. |
| 01/10/1862 | Newport, Abergavenny and Hereford Railway
Abergavenny Junction opened. |
| / /1863 | Newport, Abergavenny and Hereford Railway
West Midland Railway builds platforms north of the south facing junction with the Merthyr, Tredegar and Abergavenny Railway. |
| / /1864 | Newport, Abergavenny and Hereford Railway
Trains start to serve the newer Abergavenny station by reversing at the south facing junction to the south of it. |
| 20/06/1870 | Newport, Abergavenny and Hereford Railway
Abergavenny Junction re-built further north. |
| / /1871 | Newport, Abergavenny and Hereford Railway
Abergavenny Junction station re-built at London and North Western Railway expense. |
| / /1884 | Newport, Abergavenny and Hereford Railway
Private coal and stores siding laid to Abergavenny Lunatic Asylum from south junction at triangle. London and North Western Railway had running powers to hospital. |
| 19/07/1950 | Newport, Abergavenny and Hereford Railway
Abergavenny renamed Abergavenny Monmouth Road. |
| 09/06/1958 | Newport, Abergavenny and Hereford Railway
Abergavenny Junction closed. |
| 09/06/1958 | Newport, Abergavenny and Hereford Railway
Stations between Pontypool Road and Hereford, excluding Abergavenny Monmouth Road, closed to goods. |
| /05/1965 | Newport, Abergavenny and Hereford Railway
Pontypool Road engine shed closed. |
| / /1967 | Newport, Abergavenny and Hereford Railway
Pontypool Road engine shed demolished. Sidings here and at Coedygric largely removed. |
| 06/05/1968 | Newport, Abergavenny and Hereford Railway
Abergavenny Monmouth Road renamed Abergavenny. |
| 01/05/1972 | Newport, Abergavenny and Hereford Railway
Pontypool Road renamed Pontypool. |
| / /1994 | Newport, Abergavenny and Hereford Railway
Pontypool renamed Pontypool and New Inn. |
