Sustainability and Performance at Hampton Roads Bridge Tunnel (HRBT)-Video

Video Transcription

Video Summary

The presentation examined sustainable management of jet-grouting waste on Virginia’s Hampton Roads Bridge Tunnel expansion. Traditional earth pits caused production delays, hauling problems, and reliance on solidification materials. A real-time separation system instead processed spoils into reusable water and dry, stackable solids. On the South Island project, the system supported 24-hour operations and helped complete more than 600 columns in seven months, compared with fewer than 300 in the previous year. It treated over 18 million gallons of water, hauled off 41,102 cubic yards of solids, and eliminated the need for approximately 4,200 additional end-dump truck trips.

Keywords

jet-grouting waste

Hampton Roads Bridge Tunnel

real-time separation system

sustainable management

construction spoil reuse