Technological advances have enabled tunnels to be constructed today where they were not possible or cost-effective before, allowing us to facilitate infrastructure projects where conventional methods would be too disruptive or expensive. From shallow road crossings for water lines to deep gravity tunnels for stormwater and wastewater, Freese and Nichols has offered this specialized service for many years. What started as a solution offered for pipeline crossings has grown into a full-service business tailored to your needs for projects of all sizes.

  • Concept development and evaluation
  • Tunnel route studies
  • Shaft site selection
  • System hydraulics evaluation, computational fluid dynamics (CFD), and surge modeling
  • Desktop environmental/remedial investigations
  • Alternatives analysis
  • Tunnel excavation method evaluation
  • Economic evaluation and life cycle cost analysis
  • Tunnel and pipe design
  • Permitting and regulatory approvals
  • Public input support
  • Odor control/cleaning facilities
  • Geotechnical investigation and interpretation
  • Risk management
  • Data collection and GIS management
  • Construction inspection
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Benbrook Connection Project

Tarrant Regional Water District, Texas

HCFCD Tunneling Phase 1

Deep Tunnel Study Phase One

Harris County Flood Control District, Texas

BCRUA Phase Two Raw Water Delivery System

Brushy Creek Regional Utility Authority, Texas