Both the Saddleworth villages of Delph and Greenfield are on the western slopes of the Pennine hills. The branch followed the main cross country line between Manchester and Huddersfield as far as Delph Junction set above the village of Uppermill. Just before the junction was Moorgate Halt. Although this was situated on the main line, it was only ever used by trains to Delph. The Delph branch then left the main line and veered sharply left past Ladcastle Quarry before reaching Dobcross halt. It then continued to Delph with one additional intermediate halt that served the 'Measurements' factory on Delph New Road where trains only called at the start and end of the working day. The line terminated at Delph where a private siding served Messrs Mallalieu's Bailey Mill. There was also a goods shed and coal staithes serving local business. Delph was the only station on the line beyond Moorgate with permanent structures; the station building still survives as a private residence. Services ran to and from Oldham via Greenfield with connections to several other destinations, and summer specials ran usually to coastal resorts.
Origin of the name
The line took its name from the original service which was said to be a railway carriage drawn by a donkey. However, Gordon Suggitt states in his book, Lost Railways of Merseyside & Greater Manchester, that it has never been proven that there ever was a donkey or horse-drawn service on the line. Since the branch trains worked onto the main Manchester to Huddersfield line, it is unlikely horse-drawn trains would have been permitted.
Closure
Passenger trains ceased running on the Delph Donkey in April 1955, although a limited number of freight trains continued to use the line until November 1963. The track was lifted in 1964 to turn the line between Oldham and Grotton into a cycle/walk way. The line between Moorgate and Delph became the Delph Donkey Trail footpath and bridleway, on which the halts at Dobcross and Measurements are now marked by replica station nameboards. The section of the railway between Greenfield and Grotton was either abandoned as waste land or converted into small footpaths. A section of the line that ran below Grasscroft through Friezland is now part of a large housing estate. , old pieces of track remained outside Bailey Mill at the old Delph terminus that have not been moved since the closure almost 50 years before.
Lydgate Tunnel
The tunnel running underneath Lydgate, connecting Grasscroft and Grotton, is still completely intact and maintained, but it is unused and completely inaccessible. It was felt, after lifting the track and deciding the future use of the new available land, that it would be too costly and dangerous to collapse or infill the tunnel, especially as there were more structures above the tunnel, such as housing, than there had been when the tunnel was built in the mid-19th century. Minor work was carried out in the 1980s, as part of a planned maintenance programme, which in-filled the centre air vent to avoid any subsidence. In 2008, 44 years after the tunnel had been last used, a routine inspection revealed some areas of loose and hollow brickwork in the tunnel lining. Routine maintenance work to rectify that was carried out by BRB Limited, with substantial areas of the tunnel lining replaced with new brickwork, incorporating drainage pipes and other securing works. News of the inspection and remedial work led to concern by some local people that the tunnel was near to collapse, but BRB stated that was never a risk, and the work was just on-going planned maintenance.
