Robbins Factory Acceptance: Lower Meramec Phase 2 Tunnel

See the factory acceptance of the 3.35 m diameter Robbins Main Beam TBM for the Lower Meramec Phase 2 Tunnel in St. Louis, MO, USA.

The machine features 360-degree probe drilling capabilities and is designed to bore in shale and limestone at depths up to 286 ft (87 m).

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