GER Class B74 [SEP] designer
GER Class B74
The GER Class B74 was a class of five 0-4-0T steam locomotives designed by Alfred John Hill for the Great Eastern Railway. They all passed to the London and North Eastern Railway at the 1923 grouping and received the LNER classification Y4.
History.
These locomotives had outside cylinders driving wheels. They were built to replace the older, less powerful Class 209 (LNER Class Y5).
All were still in service at the 1923 grouping; the LNER adding 7000 to the
viaduct at this point) which was built in 1880. 
Accessed by a steep ramp from the main line the yard was worked by small GER Class B74 (LNE classification Y4) 0-4-0T locomotives. There was also a coal yard south of the railway linked to the goods yard with a line through the viaducts carrying the main line.
Although heavily bombed in World War II (staff reputedly had to jump in the adjacent canal to avoid fire on one occasion), the yard remained operational until