Robbins Company, The

Auger boring equipment from American Augers, The Robbins Company, McLaughlin, Akkerman, Bor-It Mfg. and Barbco.

Auger boring equipment from The Robbins Company, McLaughlin Group, ICON Tunnel Systems, American Augers, Akkerman, Bor-It Mfg. and Barbco.

The Robbins Company

Jeff Griffin, Senior Editor

Construction is proceeding on the largest combined sewer overflow project ever undertaken by the city of Indianapolis.

Illinois contractor L.J. Keefe Co. is no stranger to utility crossing construction, but a recent force main project in Clinton, IA, was no easy task, requiring six crossings below major highways and a channel of the Mississippi River. The simultaneous construction required hard rock and mixed ground auger bores as well as TBM tunneling, all within a short construction schedule of just five months.

Legend has it that Cincinnati, like Rome, was built on seven hills. Contractor Midwest Mole Inc., Indianapolis, IN, is continuing the local history by constructing seven sewer tunnels in a landmark project that is challenging common trenchless methods for long bores.

On Dec. 7, 2009, a new milestone was reached for auger boring machines (ABMs) using disc cutterheads. Contractor Gonzales Boring & Tunneling bored a landmark crossing length of 600 feet using a 42-inch diameter small boring unit (SBU-A).

After 35 working days of excavation, Ohio contractor Turn Key Tunneling Inc. had reason to celebrate. Their trenchless crossing beneath Interstate Highway 265 in Louisville, KY, had just been completed at an unprecedented bore length of 352 feet.

After decades of debate and hard work, completion of the Animas La Plata main reservoir in Colorado was down to just two intake lines.

The Robbins SBU-M is a manned entry, hard rock boring machine for use on both long utility installations (300 feet and over depending on geology) and crossings with specific line and grade requirements.

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