Metro North Catenary & Bridge Replacement

In Connecticut, there are approximately 200 track miles of mainline overhead powerlines juicing the trains.  For 20+ years, the Office of Rail has undertaken the monumental task of complete replacement, while still operating the nation’s busiest commuter rail service.

Project Summary:

  • Helical Pile Type: 2″ Square Shaft
  • Location: Bridgeport | Fairfield | Westport | Norwalk, CT
  • Challenge/Unique Aspect: The challenges eliminated by using helical anchors as tiebacks for the temporary soldier piling and lagging retention system proved to be both cost effective and time efficient.  The helical anchors were installed at skewed angles with careful precision to avoid the existing stone abutment.  At all times during construction, two tracks of the four-track bridge were in operation. Construction took place between the morning and evening rush hours. Demobilizations needed to take place immediately upon notification.