TBM - Rock Archives - Akkerman

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Mainline Segment 9, I-20/ Railroad Crossing – TBM 48SCII, 50-in. OD Disc Cutter Head, Tunnel Boring System with 5200 Pump Unit, 524 Haul Uni

Michigan Ditch Tunnel – 720 Series II TBM, 98-in. Mixed-Ground Disc Cutter Head, 5200 Pump Unit and Dual Bucket 1548 Haul Unit

Blacks Run Interceptor Division 1B Replacement – TBM 600, 74-in. OD Mixed Disc Cutter Head, Tunnel Boring System with 5200 Pump Unit, 524 Haul Uni