Phase II Construction – Second Tunnel

  • Continue to monitor performance of construction-related mitigation efforts
  • Continue to implement Maintenance of Traffic Plan
  • Install Phase II temporary street decks to maintain traffic access across construction trenches
  • Complete demolition of the existing tunnel
  • Construction of second new tunnel
  • Backfilling excavation for second new tunnel
  • Installation of track bed ballast, railroad tracks,  railroad signals and communications equipment in second new tunnel
  • Provide track connections for second new tunnel at both portals
  • Open second new tunnel to train traffic, tunnel construction complete
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