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Project Name: “Mt. Olivet Adit Tunnel for the Northeast Boundary Tunnel DC Water Clean Rivers”

The Mt. Olivet Adit Tunnel is part of DC’s ongoing program to reduce combined sewer overflows into the districts waterway.

The massive project includes 126-inch diameter Hobas jacking pipe with a rating of 1920 US tons.

Watch this installation video and see…

  • 0:33 / 2:37 Custom Intermediate Jacking station Installed Mid-Tunnel
  • 0:45 / 2:37 126-inch 1920 US ton Hobas Jacking Pipe
  • 2:18 / 2:37 Smooth pipe service kept jacking loads low. Maximum 600 tons required (30% of pipe rating)