 With such limited siding space, the colliery could not hold them and the GWR soon filled any available siding accommodation to capacity.The output from both Eastern and Northern United Collieries kept the Forest of Dean branch very busy, but the somewhat restricted accommodation at Bullo Junction was critical.About 1932, additional loops were provided, but at the same time it was proposed to demolish the engine shed, extend the siding through it and extend the adjoining siding to provide accommodation for a further fifty wagons.