World's Shortest Stretch of C.T.C. ?

Carter Street C.T.C. crossovers, Helena, Montana

End C.T.C. ?

The last step of the Helena Yard expansion was the installation of the signal bridge just east of the Carter Street Crossovers, which are controlled by the dispatching office in Missoula. On the signal bridge are signs indicating the end of C.T.C.  Of course these signals only govern the new yard tracks and are back in yard limits under the authority of Helena Yard. Notice the radio controlled switch machine stands past the signal bridge.