A Reservoir.

The Junction Engine on the Lambton Railway/Wagonway, (SMR 2833).

Success Pit was connected to the Lambton Railway by a Wagonway, (SMR 3131). Newbottle Colliery was opened in 1816 and closed in 1956. There were several other pits - Dolly Pit (sunk in 1811), Dorothea Pit (HER 3123), Margaret Pit (HER 3126) and Elizabeth Pit (HER 3136). The colliery was opened by the Nesham family, then taken over in 1819 by the Earl of Durham, and in 1896 by Lambton Collieries Ltd, then Lambton, Hetton and Joicey Collieries Ltd and from 1947 by the National Coal Board. The collieries were linked by 18 miles of private railways. There were several disasters - an explosion on 2 June 1815 killed 57, a boiler burst on 7 August 1815, killing 11. There were explosions on 19 October 1821 (killed 6 miners), 19 November 1824 (killed 11) and 15 June 1832 (killed 12).

Margaret Pit was connected to the Lambton Railway by a wagonway, (SMR 3131). Newbottle Colliery was opened in 1816 and closed in 1956. There were several other pits - Dolly Pit (sunk in 1811), Dorothea Pit (HER 3123), Elizabeth Pitt (HER 3136) and Success Pit (HER 3127). The colliery was opened by the Nesham family, then taken over in 1819 by the Earl of Durham, and in 1896 by Lambton Collieries Ltd, then Lambton, Hetton and Joicey Collieries Ltd and from 1947 by the National Coal Board. The collieries were linked by 18 miles of private railways. There were several disasters - an explosion on 2 June 1815 killed 57, a boiler burst on 7 August 1815, killing 11. There were explosions on 19 October 1821 (killed 6 miners), 19 November 1824 (killed 11) and 15 June 1832 (killed 12).

Success Brickfield was served by a wagonway, (HER 3131). 1861

Herrington Mill (Corn), with mill race (HER19088) located on the east side of the burn above the point where Philadelphia Lane (A182) crosses the burn today. Designed to serve West Herrington township probably in the medieval period. By 1768 it is shown as a paper mill on Armstrong's county map and as a flint mill on Greenwood's map of 1820. By c.1858 it was a corn mill.

Newbottle Colliery, Dorothea Pit. Newbottle Colliery was opened in 1816 and closed in 1956. There were several other pits - Dolly Pit (sunk in 1811), Elizabeth Pit (HER 3136), Margaret Pit (HER 3126) and Success Pit (HER 3127). The colliery was opened by the Nesham family, then taken over in 1819 by the Earl of Durham, and in 1896 by Lambton Collieries Ltd, then Lambton, Hetton and Joicey Collieries Ltd and from 1947 by the National Coal Board. The collieries were linked by 18 miles of private railways. There were several disasters - an explosion on 2 June 1815 killed 57, a boiler burst on 7 August 1815, killing 11. There were explosions on 19 October 1821 (killed 6 miners), 19 November 1824 (killed 11) and 15 June 1832 (killed 12).

To serve the Lambton Railway and to carry out repairs for collieries a group of buildings - the "Earl of Durham's Engine Works" was gradually erected alongside the railway at Philadelphia. Later it became much better known as the "Lambton Engine Works". The original facilities for loco repairs soon became inadequate, despite the fact that a new 0-6-0 tender loco was constructed in 1877, and in 1882 a new locomotive erecting shop was built. This was a tall, airy building, with two through roads for locomotive repairs. The remainder of the building was given over to machinery, and in 1883 a clock was installed to overlook the Works yard. Adjacent to the erecting shop were - and still are - the boiler, fitting and machine shops, so that the Works was almost self-contained, new boilers and fireboxes being the only major items purchased from outside. In 1884 the Works built an 0-4-0 saddle-tank and later contributed two more tender locomotives, one in 1890 and another in 1894. The Works has passed through a number of changes of ownership in its time. In 1911 Lambton and Hetton Collieries Ltd was formed by the amalgamation of Lambton Collieries Ltd and the Hetton Coal Co Ltd. Before 1914 the shop handled about twenty repairs a year, which fell to about twelve during the 1914-1918 War. The length of time taken to complete a major repair - e.g. a new boiler, varied, but was usually between seven and ten months, though No.26 was in for 4.5 years from 1915 to 1919! After the War things speeded up and in 1923 no fewer than 31 repairs were handled, though this later settled down to about 17 a year. Usually there were four locomotives in the shop, two to each gang, and at least one of which was a tender engine. On 1st January 1947 the Works passed to the National Coal Board, and it has since become one of the main repair bases in North-East England. The locomotive side expanded its activities, receiving locomotives from other collieries in North Durham as well as continuing repairs to the Lambton Railway stud.…{2}.

Coal Pit, marked as Old on the 1st edition OS mapping, so out of use by 1858. May have been associated with Morton Engine, (SMR 3140), and a wagonway, (SMR 3614) {1}. The site of the pit is marked by low irregular grassed-over earthworks {2}.

Herrington Engine and Coal Depot on the Lambton Wagonway, (SMR 2833).