I was a shunter at Bickershaw Exchange sidings for about eighteen months from October 1981. I could probably draw you a diagram of the
sidings,it may not be 100% accurate, but it may help. Some trains ran from the Albert Disposal Point, which was adjacent to the exchange
sidings and was accessed through the sidings. There are a few photos on Flickr of the exchange sidings. I would also suggest looking at the
Wiganworld website.
The NCB used two GEC diesel 0-6-0 locos. They were named Western King and Western Queen. The ADP had an 0-4-0 Sentinel.
All the coal trains ran as Trip workings, including the Partington trains. During my time at Bickershaw trains also ran to Padiham CEGB, using
MCVs. The only timetabled services were the Monday only departure to Burton Wagon Repair Depot and the return working, which ran to
Springs Branch. The repaired wagons would then be "tripped" to Bickershaw as required.