Pipe/steel, underground construction: Caterpillar 312B crawler mounted hydraulic backhoe/excavator prepares to lift and set pipe in trench it straddles. Standing worker at far left pulls on steel cable sling to tighten its loop around pipe. He will next hook sling over hook on his side of backhoe shovel, so backhoe can pick up pipe. Far left bent over worker is slipping black plastic bag over far end of pipe to keep it clean during placement. West Stadium, Ann Arbor, Michigan 2006.

Pipe/steel, underground construction: Caterpillar 312B crawler mounted hydraulic backhoe/excavator prepares to lift and set pipe in trench it straddles. Standing worker at far left pulls on steel cable sling to tighten its loop around pipe. He will next hook sling over hook on his side of backhoe shovel, so backhoe can pick up pipe. Far left bent over worker is slipping black plastic bag over far end of pipe to keep it clean during placement. West Stadium, Ann Arbor, Michigan 2006.