▁long , ▁steam ▁operated ▁Open ed : ▁Sal z ungen ▁– ▁Dor nd orf ▁– ▁L eng sf eld , ▁ 1 9 . 7   km ▁long , ▁ 1 ▁June ▁ 1 8 7 9 ▁( good s ▁traffic ), ▁ 2 2 ▁June ▁ 1 8 7 9 ▁( pass enger ▁traffic ). ▁Dor nd orf ▁– ▁V ach a , ▁ 5   km ▁long , ▁ 1 0 ▁August ▁ 1 8 7 9 . ▁L eng sf eld ▁– ▁D erm bach , ▁ 8 . 8   km ▁long , ▁ 6 ▁October ▁ 1 8 7 9 . ▁D erm bach ▁– ▁Kal ten n ord heim , ▁ 1 0 . 6   km ▁long , ▁ 2 4 ▁June ▁ 1 8 8 0 ▁( good s ▁traffic ), ▁ 1 ▁July ▁ 1 8 8 0 ▁( pass enger ▁traffic ). ▁The ▁line ▁was ▁taken ▁over ▁on ▁ 2 0 ▁May ▁ 1 9 0 2 ▁by ▁the ▁Pr uss ian ▁state ▁rail ways ▁and ▁taken ▁into ▁operation ▁via ▁Dor nd orf ▁to ▁V ach a ▁on ▁ 7 ▁July ▁ 1 9 0 6 ▁as ▁standard ▁gauge . ▁Straßen bahn ▁Rav ens burg – We ing arten – B a ien furt ▁ ▁N arrow ▁gauge ▁() ▁section ▁opened : ▁Rav ens burg – We ing arten , ▁ 4 . 1   km ▁long , ▁ 6 ▁January ▁ 1 8 8 8 ▁( P ), ▁ 1 5 ▁July