[8] The September 1959 timetable shows After the Second World War at the latest most trains were composed of two carriages, with one regular turn comprising just one brake third coach.

Workmen's trains had been a feature of the line from the outset; they were the Festiniog and Blaenau Railway's biggest source of revenue.

[12][13] Up to 1930 at the earliest such services used dedicated, lower standard, coaches which used a specific siding at Blaenau where the men boarded from and alighted to the ballast.

A survey undertaken in 1956 and 1957 found that the average daily numbers of passengers boarding and alighting were: Military traffic had ended and, apart from a finite contract to bring cement to Blaenau in connection with the construction of Ffestiniog Power Station[22] freight traffic was not heavy, most arriving and leaving Bala did so from and to the south and that to Blaenau could be handled from the Conwy Valley Line northwards.

Monies were made available to divert the route round the dam, but it was decided that improving the Bala to Llan Ffestiniog Road would be of greater benefit.

This was necessary as locomotive hauled trains had been banned from the usual route along the Cambrian Line owing to concerns regarding the structural condition of Barmouth Bridge.

Few people used the service to visit the power station, most riders travelled "for the ride", so the following year tourist trains drove to the line's terminus then reversed, with no-one getting on or off.

On 21 September at least one regional newspaper reported that "Volunteers are set to start work this weekend on clearing vegetation from the trackbed between Blaenau Ffestiniog and Trawsfynydd."

[41] After the society's meeting on 28 January 2017 they were given the go ahead to start on stage two of the project and to create a base to work from at Maentwrog Road.