In 2003 Freightliner Heavy Haul introduced a batch of MJA bogie ballast wagons for the movement of spoil and aggregates. The wagons, which are coupled in pairs with a bar coupling, were built by Wagony Swidnica in Poland. 66561 ambles along the up relief line at Circourt Bridge, Denchworth, on 9 October 2003 with a load of spoil from Baglan Bay, heading for the tip at Appleford.