Expertise: MTBM (Microtunnel Boring Machine), Annular Pressure Grouting, Products Pipe Pressure Testing
Construction workers in yellow safety vests and hard hats stand near large yellow industrial equipment on a fenced construction site with rusted steel beams and power lines against a clear blue sky.

WHCRWA Contract 64 Water Transmission Main

Client: West Harris County Regional Water Authority (WHCRWA) / Reytec Construction Resources, Inc.
Location: Houston, TX
Status: Completed 2026
Contract Value: $3.1 Million
Trenchless Method: Microtunneling (MTBM)
Pipe Diameter: 84" Steel Casing
Length Installed: 930 LF

Gallery

  • Construction crew at a worksite with a white truck, power lines, and a tall equipment tower in the background; worker in a neon yellow vest in foreground.
  • Construction excavation with a large circular pipe入口 in a muddy pit, surrounded by wooden formwork, a yellow vent hose, and orange ladders far right.
  • Construction site with a large black pipe/container labeled 'LAST PIPE', yellow equipment, and a worker in a reflective vest nearby.
  • Back view of a construction worker in a neon yellow safety vest with orange reflective stripes; vest reads 'BIG RIVER' on the back, helmet covered in stickers; blurred construction site in the background.
  • Welding scene with bright sparks and a protective helmet near a metal seam being joined, in a workshop scenario.
  • Construction workers in yellow safety vests and hard hats stand near large yellow industrial equipment on a fenced construction site with rusted steel beams and power lines against a clear blue sky.
  • Interior of a cylindrical tunnel under construction with exposed pipes, cables, and temporary lighting along the walls
  • Workman in a high-visibility vest stands beside large industrial equipment inside a muddy, multi-level trench with a big black pipe and red hydraulic components.
  • Mud-covered, circular metal frame with broken red tile fragments and wooden supports in a collapsed structure.
  • Construction trench with a large dusty pipe and a yellow spiral-wrapped conduit, surrounded by wooden supports and scattered debris on the muddy floor
  • Construction site with a large crane lowering a circular concrete tunnel segment into an open trench, workers in high-visibility vests nearby.
  • Massive cylindrical tunnel segment being lowered onto a blue trailer by cables, at a construction site with a crane and worker nearby in safety gear.
  • Construction site trench with a large circular manhole frame in muddy water, surrounded by wooden formwork and a yellow duct.
  • Two construction workers wearing high-visibility vests and hard hats stand near a large curved metal pipe on a muddy construction site.
  • Construction site with a worker in a neon vest kneeling on a large yellow cylindrical pipe on a blue trailer area
  • Two construction workers in safety vests and hard hats stand on a trailer beside a large wooden spool, with crane cables coming down.
  • Industrial trench with a large yellow cylindrical component and red piping, supported by a blue frame and wooden shoring.
  • Close-up of a machine control panel with numerous orange and teal push buttons and black toggle switches.
  • Yellow industrial turbine housing being lowered into a deep excavation by multiple chains, with workers in hard hats nearby.
  • Construction crew at a site with a large yellow drilling rig lowering a cylindrical component into a trench area, safety gear on workers visible
  • Construction workers inspect a large orange tunnel boring machine segment in a deep excavation pit behind blue grating and ladders dismissed with scaffolding around it.
  • Large yellow industrial cylinder being lowered into a shaft with heavy chains, surrounded by scaffolding and workers in safety vests and helmets.

PROJECT OVERVIEW

Big River Trenchless completed critical microtunneling operations for the West Harris County Regional Water Authority’s Contract 64 program. The project supports long-term regional water transmission improvements and was completed beneath active roadways and developed corridors with minimal surface disruption.

Key Highlights

  • 930 LF of 84-inch steel casing installed
  • Large-diameter microtunneling installation
  • Precise line and grade control
  • Annular grouting and survey coordination
  • Herrenknecht AVN1800 MTBM equipment utilized