Llynvi and Ogmore Railway

Llynvi and Ogmore Railway
Locale	Wales
Dates of operation	1861–1873
Successor	Great Western Railway
Track gauge	4 ft 8 ¹⁄₂ in (1,435 mm) and 7 ft (2,134 mm) Brunel gauge
Length	27 miles (43 km)
Headquarters	Tondu

Legend

originally Duffryn, Llynvi and Porthcawl Railway

to Glyncorrwg

South Wales Mineral Railway

to Tonmawr

Cymmer Viaduct

Rhondda and Swansea Bay Railway

to Port Talbot • to Treherbert

West Junction

Cymmer Afan

Abergwynfi

Abergwynfi Colliery

Cymmer Tunnel

1591 yd

1455 m

Caerau Colliery

Caerau

Nantyffyllon

Port Talbot Railway and Docks Company

to Pontyrhyl

Maesteg (Neath Road)

PTR&DCo

to Port Talbot

Maesteg

Maesteg (Ewenny Road)

Garth

Troedyrhiew Garth

Llangynwyd

Ogmore Valley Railway

to Brynmenyn

Tondu

South Wales Main Line

to Bridgend

Cefn Junction PTR&DCo

Kenfig Hill

South Wales Main Line

to Bridgend

Pyle Junction

Pyle

South Wales Main Line

to Swansea

closed 1965

Cornelly Quarry

Nottage Halt

Nottage Tunnel

63 yd

58 m

Porthcawl

The Llynvi and Ogmore Railway (originally the Duffryn, Llynvi and Porthcawl Railway) was formed by the merger on 1 July 1866 of the broad-gauge Llynvi Valley Railway and the standard-gauge Ogmore Valley Railway. It served Porthcawl, Bridgend, and Tondu in Glamorgan, Wales, along with various branches.

The company name was spelt Llynvi using the Anglicised phonetic spelling popular at the time, rather than the correct Welsh Llynfi.

Chronology

1825 The horse-drawn Duffryn Llynvi and Porthcawl Railway (DLPR) authorised by Act of Parliament. Track gauge was as 4 ft 7 in (1,397 mm)^[1]
1828 DLPR opened from Porthcawl to Garnlwyd in the Llynfi Valley
1828 The horse-drawn Bridgend Railway authorised by Act of Parliament
1830 DLPR completed to its northern terminus at Coegnant near the head of the Llynfi Valley
1847 Llynvi Valley Railway (LVR) authorised by Act of Parliament and merges with DLPR
1861 Horse-drawn LVR re-routed and re-opened as the steam-hauled, broad gauge Llynvi Valley Railway
1863 Ogmore Valley Railway authorised by Act of Parliament
1865 Ogmore Valley Railway opened from Nantymoel to Tondu
1866 Llynvi and Ogmore Railway formed by merger
1868 All lines now mixed gauge
1872 Broad gauge abandoned
1877 Cymmer Tunnel opened to connect with the Afan valley
1883 Amalgamated into the Great Western Railway as part of the Maesteg Line
1886 Llynvi Valley Extension (Great Western Railway) to Abergwynfi opens
1958 Ogmore Valley Railway closes (Bridgend-Nantymoel 5 May 1958)^[2]
1960 Line to Abergwynfi closes
1965 Branch to Porthcawl railway station closes in the Beeching Axe
1970 Passenger service between Cymmer (Afan) and Bridgend withdrawn
1971 Cymmer Tunnel closed to all rail traffic
1973 Cefn Junction and Signal Box closes

Locomotives

Main article: Locomotives of the Great Western Railway

Broad gauge 0-6-0ST

0-6-0ST

Type and origin
Power type	Steam
Builder	Slaughter, Grunning & Co.

Specifications
Configuration	0-6-0ST
Gauge	7 ft (2,134 mm)
Driver dia.	4 ft 6 in (1,372 mm)
Wheelbase	15 ft 5 in (4,699 mm)
Cylinder size	dia × stroke, 16.5 in × 24 in (419 mm × 610 mm)

Ada (1862–1868)
Una (1862–1868)

The railway owned two 0-6-0STs for goods traffic. Built by Slaughter, Grunning and Company, they were similar to the South Devon Railway Dido class built at around the same time.^[3]

In 1868 they were exchanged for standard gauge locomotives from the West Cornwall Railway, which had recently been rebuilt to allow broad gauge trains to run through from the Great Western Railway to Penzance.

In 1876 Ada and Una became GWR 2146 and 2147 respectively. They were withdrawn in 1884 and 1886.

Broad gauge 4-4-0ST

4-4-0ST

Type and origin
Power type	Steam
Builder	Slaughter, Grunning & Co.

Specifications
Configuration	4-4-0ST
Gauge	7 ft (2,134 mm)
Leading dia.	3 ft 6 in (1,067 mm)
Driver dia.	5 ft 6 in (1,676 mm)
Wheelbase	18 ft 0 in (5,486 mm)
Cylinder size	dia × stroke 16.5 in × 24 in (419 mm × 610 mm)

Rosa (1863–1868)

The railway owned a single 4-4-0ST passenger tank locomotive. Built by Slaughter, Grunning and Company, it was similar to the South Devon Railway Eagle class.

Rosa was also exchanged for West Cornwall Railway rolling stock in 1868. It was then rebuilt as an 0-6-0ST, making it similar to Ada and Una.

It became GWR 2145 and was withdrawn in 1885.

Standard gauge

Twelve Lynvi and Ogmore Railway locomotives were acquired by the Great Western Railway in 1873 and renumbered 915 to 926.

5 Sharp Stewart and Company 0-6-0ST (1865)
4 Robert Stephenson and Company 2-4-0 ex-West Cornwall Railway (1868), three rebuilt as tank locomotives
3 Black, Hawthorn & Co. (1871)

References

↑ Duffryn Llynvi and Porthcawl Railway gauge
↑ Railway Magazine June 1958 p. 433
↑ Sheppard, Geof (2008). Broad Gauge Locomotives. Noodle Books / Broad Gauge Society. p. 71. ISBN 978-1-906-419-09-7.

Reed, P.J.T. (February 1953). White, D.E., ed. The Locomotives of the Great Western Railway, Part 2: Broad Gauge. Kenilworth: The Railway Correspondence and Travel Society. ISBN 0-901115-32-0. OCLC 650490992.
MacDermot, E T (1931). History of the Great Western Railway, volume II 1863-1921. London: Great Western Railway.
Waters, Laurence (1999). The Great Western Broad Gauge. Hersham: Ian Allan Publishing. ISBN 0-7110-2634-3.

External links

Historic Welsh railway companies

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