The Lancaster and Carlisle Railway was a main line railway opened between those cities in 1846. With its Scottish counterpart, the Caledonian Railway, the Company launched the first continuous railway connection between the English railway network and the emerging network in central Scotland. The selection of its route was controversial, and strong arguments were put forward in favour of alternatives, in some cases avoiding the steep gradients, or connecting more population centres. Generating financial support for such a long railway was a challenge, and induced the engineer Joseph Locke to make a last-minute change to the route: in the interests of economy and speed of construction, he eliminated a summit tunnel at the expense of steeper gradients.
The sparseness of the population discouraged the addition of branch lines, with a small number of exceptions, although several east-west secondary routes made independent connection to the route. Establishing a joint station at Carlisle with the three other railway companies terminating there, seemed obviously appropriate, but proved hugely difficult, and the Lancaster and Carlisle Railway funded the main station practically single-handedly, in the face of outright obstruction.
The line was electrified in 1974 and at the present day is a key part of the West Coast Main Line, carrying long-distance passenger and freight trains.
Extending northwards
In 1830 the Liverpool and Manchester Railway opened, heralding a new age of steam powered public railways. It did not take many years for a railway network to form, and by October 1838 it reached Preston, enabling through journeys from London. On 26 June 1840 the Lancaster and Preston Junction Railway further extended the network north as far as Lancaster.
Already in 1835 many observers saw that a trunk line connecting England and Scotland could be expected soon; surveys had already been carried out and routes suggested. George Stephenson had developed two routes, a direct one via Shap following the valley of the River Lune. This involved steep gradients, which Stephenson disliked, and he preferred a route crossing Morecambe Bay by a long barrage, and round the Cumberland coast. This had much easier gradients and would serve numerous populated settlements, but at the expense of considerable extra distance. Stephenson's proposals were not carried forward at this stage. Joseph Locke carried out a series of assessments of practicable routes in the years 1835 to 1837, not all of them actual surveys. In particular, on 4 November 1836 Joseph Locke was commissioned by the Grand Junction Railway to "report on the practicability of making a railway communication between Preston and Glasgow". He proposed a route passing east of Lancaster and running up the valley of the River Lune past Kirkby Lonsdale. There was to be a summit tunnel at Shap, miles long, after which the line would descend through Bampton, Askham and Penrith into Carlisle. The steepest gradients were to be 1 in 100. His report was well received, but no progress was made at this stage.
In 1837 George Stephenson was commissioned by interests in the Whitehaven area to design a route round the coast of Cumberland linking with the Maryport and Carlisle Railway. Stephenson was sceptical about the ability of locomotives of the day to ascend gradients, and he was happy to prepare a route that followed the coast closely, crossing Morecambe Bay from Poulton-le-Sands to Humphrey Head, crossing to Ulverston and then tunnelling under the Furness peninsula and crossing the Duddon Estuary, next following round the Cumberland coast to Whitehaven, where a railway from Carlisle was already proposed. Modifications to that prodigious scheme were put forward the following year.
At the time Kendal was a significant community of 9,000 persons, and local interests were dismayed to be by-passed by Locke's scheme. They argued that a line could be made running north from Kendal up Long Sleddale. At the head of the valley a mile tunnel could take the line to a viaduct over Mardale, and the line would then follow the west side of Haweswater to Bampton and Penrith. The tunnel under Gatescarth Pass (1,950 feet above sea level) would require construction shafts 700 feet deep. Meanwhile Locke revisited his Lune Valley route and proposed a deviation between Tebay and Penrith, involving a shorter tunnel under Orton Scar, before curving to the west through Crosby Ravensworth, Morland and Clifton.