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Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is an Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
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Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is an Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.

equipmentconstructionphotosmethodsprecastprestressedconcretebridgegirderhydrasteertrailerkenworthtrucktractor.6797

  • Earth moving construction: Caterpillar D4C track mounted tractor bull dozer excavates earth for underground construction alongside parkway. Earth is dozed to this end of trench, where a backhoe loads it into dump trucks to haul away. Huron Parkway at Huron High School, Ann Arbor, Michigan August 2005
  • Earth moving construction: Bobcat 863 skid-steer tractor with stone separating blade/bucket lifts and sifts soil to extract and separate stones. Operator is picking out and tossing away soil clumps that sifted out with stones. Dixboro Bridge, Ann Arbor, MI, 2004.
  • Concrete construction: Laborers align crane supported laydown type concrete bucket. They will open its bottom gate to place concrete in bridge pier. Orange hopper funnels concrete into pier. Broadway Bridge, Ann Arbor, 2003.
  • Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is an Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
  • Underground construction: Rohrscheib earth auger mounted on Caterpillar 330B crawler mounted hydraulic backhoe boom. In background is Komatsu PC300LC crawler mounted backhoe. Broadway Bridge, Ann Arbor, 2003.
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