The pusher set aids westbound NS 168 up the 2.8% grade of Duncan Hill.
After pushing 168 up Duncan Hill the pusher set with the specially painted 4004 returns to Louisville to wait for another westbound.
The former UP 8052 now wearing fresh NS paint pushes westbound 239 up the 2.8% grade of Duncan Hill.
Assigned for todays pusher set up Duncan Hill a SD40-2 and
CN GE assist westbound 224 up the grade.
A single 80MAC helps put the brakes on eastbound loads creeping slowly down the mountain and around Horseshoe Curve on a beautiful but chilly fall morning.
The D90 pushers exit the seldom photographed East portal of Duncan Tunnel