Delivering Talent For Virginia’s Largest Infrastructure Project For Flatiron

August 3, 2025

Flatiron construction site logo

How AG supported tunneling, marine, and highway builds on the $3.9B HRBT expansion.

Flatiron Corporation, through the HRCP joint venture, took on the Hampton Roads Bridge–Tunnel (HRBT) Expansion Project. At $3.9B, it’s the largest infrastructure job in Virginia’s history.

With new highway corridors, marine bridge structures, and an immersed-tube tunnel system, the project demanded a deeply specialized workforce to execute safely and on time.

Flatiron borring machine

Flatiron needed to staff three highly technical segments of the job:

  • Tunneling with TBM operations
  • Bridge-over-water construction
  • VDOT-aligned highway delivery

Internal and external recruiters struggled to consistently source candidates with the depth of experience required. Add to that the complexity of a multi-partner JV approval process, and the hiring challenge only intensified.

That’s when Flatiron brought in Amundson Group.

Flatiron construction tunnel

We coordinated closely with Flatiron’s executive team, JV partners, and field leadership to deliver a targeted hiring strategy:

  • Sourced specialists in tunneling, marine works, and VDOT highway projects
  • Vetted every candidate for technical expertise and cultural fit
  • Managed end-to-end logistics, including JV approvals and onboarding coordination

This wasn’t just filling roles. It was niche hiring at scale, under pressure.

Flatiron construction tunnels
  • 14 hires across the HRBT project, including:
    • 1 General Superintendent – Highway
    • 1 General Superintendent – Bridge
    • 3 Tunnel Superintendents
    • 4 Superintendents across disciplines
    • 3 Bridge Crew Leaders
    • 2 TBM Foremen

Delivery metrics

  • Time to submit: 4.5 days
  • Time to interview: 6 days
  • Time to hire (with JV signoff): 10 days

These hires kept critical scopes on schedule across one of the most complex infrastructure projects in the country.

  • Because we know how to recruit for complexity.
  • Because we understood the project’s technical, cultural, and compliance demands.
  • Because we embedded ourselves across functions and partners to make hiring frictionless.

Amundson Group continues to support Flatiron and the HRCP JV as the HRBT Expansion moves into future phases.

Alex Mowbray

Written by Alex Mowbray

Founder and CEO of Amundson Group

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