The story
Origins
In 1794 the Monkland Canal was completed, enabling the cheap transport of coal from the Monklands coalfields, south of Airdrie, to the households and industries of Glasgow. Advantageous at first, in time the canal was accused of exploiting its monopoly, and in 1824 the Monkland and Kirkintilloch Railway (M&KR) was opened, connecting the coalfields to the Forth and Clyde Canal at Kirkintilloch; onward conveyance by canal barge from there to Glasgow and Edinburgh was possible.
Ironstone was also smelted on a small scale at first, and from 1828 James Beaumont Neilson developed the hot blast process of iron smelting, and iron manufacture quickly became a huge industry, centred on Coatbridge, and the M&KR found itself at the centre of this massive industry, connected at first to all the local sources of coal and iron, and to the ironworks.
Coal was already extracted on a small scale in New Monkland, north and east of Airdrie and not directly accessible to the M&KR, and Thomas Grainger, the engineer of the M&KR, prepared a pamphlet proposing a railway from the New Monkland pits to connect with the M&KR. Construction was promised to be cheap, and the Ballochney Railway Act 1826 (7 Geo. 4. c. xlviii) of 5 May 1826 authorised the construction by a new company, the Ballochney Railway Company, with share capital of £18,425 and borrowing powers of £10,000.
The Ballochney Railway was to connect the pits to the M&KR at an end-on junction at Kipps, between Coatbridge and Airdrie. Money was scarce at the time, and the Forth and Clyde Canal company had agreed to subscribe for stock in February 1826. £3,300 was subscribed by English investors. The engineer was to be Grainger.
As was usual, the act laid down maximum toll rates for the railway: "For all Goods, Wares, Merchandize [sic], Coal and other Things: 3d per Ton, per Mile. For passing up or down any one of the Inclined Planes, or for any part of one, and for every Inclined Plane, 6d in addition."
Four contracts were let to construct the line from Kipps on the M&KR to "Airdrie Depot", i.e. the Leaend depot near Mosside Farm; from there to the top of the inclined plane at Rawyards; from there to Ballochney; and the Clarkston branch. A branch to Whiterigg and Stanrigg had been authorised in the Ballochney Railway Act 1826, but it was not made at this time.
Birkinshaw's patent malleable rails were ordered, as used on the M&KR. These had been a considerable technological advance on the cast iron rails used previously. The rails were 20 lb/yd (10 kg/m) and 15 feet (4.6 m) long, but there was a subsequent change to 28 lb/yd (14 kg/m) and 18 feet (5.5 m) long. This change may reflect improvements in manufacturing capability, which must have been at its technical limit at the time.
Subsequent history
The Monkland Railways were absorbed by the Edinburgh and Glasgow Railway by the Edinburgh and Glasgow and Monkland Railways Amalgamation Act 1865 (28 & 29 Vict. c. ccxvii) dated 5 July 1865, effective from 31 July 1865. A day later (on 1 August 1865) the Edinburgh and Glasgow Railway was absorbed into the North British Railway
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The location of active mineral extraction changed with time as pits became exhausted and new ones opened; the former Ballochney line continued to play a part in transporting minerals for the rest of the 19th century. The inclines on the Ballochney main line converted to locomotive operation, notwithstanding the very steep gradients. The passenger service over the Arbuckle route to the Slamannan line continued, and survived until 1930. By that time nearly all the pits and quarries had closed; the few remaining terminals closed progressively. The final part of the Ballochney system was the link from Kipps to the Hallcraig Street station, which remained open for goods traffic for Airdrie until closure in 1964. (A short stub at the western extremity may have remained open until 1971.
From Wikipedia’s article on Ballochney Railway, shared under CC BY-SA 4.0.3