Existing Tollgate Interceptor, which serves a major portion of the City of Aurora, was reaching capacity. A multi-year parallel project was commissioned to serve the citizens of the area.


Major roadway, creek crossings, extensive utilities, limited public ROW and unique technical subsurface conditions defined the scope of the work.


Collaborative efforts between City of Aurora, CDM Smith &  BTC in on-going redesign allowed the team to continuously evaluate options.  Combining open-cut and tunneling allowed optimization of construction methods and pipe materials.

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BT Construction