Derailment of CLAM ballast wagons at Herne Hill on 21 January 1996 (RR-TRS-96-010)

On 21st January 1996 seven wagons of a ballast train, consisting of twenty-two CLAM wagons and five TOPE wagons, became derailed at Herne Hill station. The derailment was caused by a track cant gradient of 1 in 94 over 3m. The fact that two wheels climbed onto the rail...