The Friedewald train collision was a railway accident on 12 September 2009 in Saxony, Germany.

It involved two steam-hauled passenger trains of the narrow gauge heritage Radebeul–Radeburg railway (German: Lößnitzgrundbahn).

On the weekend of 12–13 September 2009,[1] the 750 mm (2 ft 5+1⁄2 in) gauge Lößnitzgrundbahn was holding a gala to celebrate the 125th anniversary of the opening of the railway.

[4] A double-headed train hauled by Saxon-Meyer 0-4-4-0Ts Nos.145 and 176 was in collision with a BMW car at an open level crossing in Radebeul.

[2] At 17:45 local time, two passenger trains were involved in a head-on collision on the single track between Friedewald Haltepunkt and Friedewald Bad stations of the Moritzburg municipality,[1] approximately halfway between the streets Karlstraße and An der Siedlung.

[2] Both trains were travelling at a speed of about 25 kilometres per hour (16 mph), and entered a single-tracked long turn in a narrow, forested valley from opposite directions.

[9] One hundred and twenty-one people, including passengers as well as both drivers and firemen,[7] were injured,[10] four seriously, but not critically.

[1] Fifty-two injured passengers, including seven children under ten years of age,[2] were rescued from the collision site by the local police and fire departments and the German Red Cross,[4] and taken to six different local hospitals.

[11] Four hundred such engines were built as part of the East German World War II reparations for the Soviet Union.

After the accident, the badly damaged locomotive was taken to the Sächsische Dampfeisenbahngesellschaft (SDG) workshops in Oberwiesenthal for assessment.

[5] After the derailed carriages had been lifted back on the track with hydraulic jacks, both damaged locomotives and seventeen carriages were transported from the collision site to Radebeul Ost station by diesel locomotives for inspection.

According to the Lößnitzgrundbahn's vice manager, Mirko Froß, the repair costs are covered by the railway's insurance.

The track, which had only suffered minor damage, was repaired before the line reopened on 16 September.

Expert for transport safety Ulrich Maschek of the Dresden University of Technology criticized that the trains were not equipped with GPS-based modules automatically warning or halting trains about to collide: "Modern technology and historical vehicles are not mutually exclusive", he said.

3011, hauled by engine 99 1789, had left Friedewald Bad without permission despite the other train on the line.