Manchester contractors Pauling & Henfry, who tendered £167,529 (£ in ), were in May 1844 awarded two contracts to build the Clifton to Bury and Bury to Rawtenstall sections of the new railway. The work was sub-let to smaller contractors and began quickly; in July 1844 the "Manchester Guardian" wrote a favourable report on the works. However, a shortage of workers in 1845 (reflecting the amount of railway construction underway at that time) meant that some men were asked to work on Sundays, resulting in some being charged with breaking the Sabbath. Further difficulties prompted the dismissal of the original contractors, their place being taken by John Waring.