TUNNELING - SUBWAY & SANITATION

Chicago, Los Angeles, Columbus (USA)

 

PROJECT ROLE: General Contractor

PROJECT SCALE: USD $2 billion combined total

• All completed on-time and on-budget

SCOPE: Deep Sub-surface Tunneling

• Transportation & Sanitation

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HIGHLIGHTS:

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TARP TUNNEL SYSTEM (CHICAGO)

• Three tunnel projects

• USD $475 million

• 21 miles (33.8 km) of mined and concrete tunnels 

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ECIS PROJECT (LOS ANGELES)

• Sewer system upgrade

• USD $257.5 million

• 11.2 miles (17.9 km) tunnel length

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OARS PROJECT (COLUMBUS, OHIO)

• 22-foot-diameter tunnel

• USD $264.5 million

• 4.5 miles (7.2 km) tunnel length

• Custom manufactured mining machine

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