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We make hard jobs look easy

Cheaper Than Trenching Through Cohesive Clay

30, 36 & 42 Inch Storm Water Tunnels

Cheaper Than Trenching Through Cohesive Clay

Water Project Through Multiple Geologies under the Tunjuelo River

42-Inch Wastewater Pipeline

Water Project Through Multiple Geologies under the Tunjuelo River

Petra Rescues Stuck Boring Machine in Liquefaction Zone

44 Inch Wastewater Pipeline

Petra Rescues Stuck Boring Machine in Liquefaction Zone

Boring Through Hard, Consolidated Clay to Deliver Clean Water to Millions

24, 32 Inch Pressure Water Tunnels (Potable Water)

Boring Through Hard, Consolidated Clay to Deliver Clean Water to Millions