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Fossil Creek Trail BNSF Pedestrian Tunnel

July 2016 – January 2017

Project Description

  • A new pedestrian trail tunnel was constructed under the BNSF rail line in south Fort Collins, adjacent to both Redtail Grove Natural Areas.
  • The 70-feet long, 170-inch diameter tunnel was bored under the BNSF railroad using a steel pipe casing, large hydraulic jacks and excavation equipment.
  • Additionally, two horizontally arched concrete retaining walls were constructed at the ends of the tunnel, 23 feet tall and 93 feet long.
  • The project began in July 2016 and was completed in early 2017.

Mailed construction notice

Trail proposal map

Representative photos of similar tunnel construction

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