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My Construction Photos > Dinosaurs, prehistoric animals: Allosaurus fragilis, from Colorado, is a large meat eating dinosaur of the Late Jurassic period, about 150 million years ago. National Museum of Natural History, Washington, DC, November 2006.

My Construction Photos > Steel frame supports horizontal rebars for cast in place concrete beam. Top steel is supported at proper height by a transverse rebar, and height can be adjusted by small chain fall. Top steel supports U stirrups, which can themselves support horizontal bottom steel. Note that steel rebar cage sags under its own weight and requires additional support along its length. Colorado Street, Denver, Colorado, December 4, 2006.

My Construction Photos > At far end, steel frame supports horizontal rebars for cast in place concrete beam. Top steel is supported at proper height by a transverse rebar, and height can be adjusted by small chain fall. Top steel supports U stirrups, which can themselves support horizontal bottom steel. Resteel sags under its own weight and needs additional support along its length. The resteel extends grade beams at near end, which has top steel exposed to bond to concrete slab floor. Colorado Street, Denver, Colorado, December 4, 2006.

My Construction Photos > Allen Engineering Razorback Rider mechanical drive riding trowel is being set by crane on top of reinforced concrete elevated slab of building to produce a trowelled finish. Another riding trowel is already being used, in left background. Monroe Pointe Building, Denver, Colorado, December, 2006.

My Construction Photos > Allen Engineering Razorback Rider mechanical drive riding trowel is lifted by crane to finish reinforced concrete elevated slabs of building. A tag line/rope is hanging from its left side to allow workes on ground to guide it into position. Monroe Pointe Building, Denver, Colorado, December, 2006.

My Construction Photos > Allen Engineering Razorback Rider mechanical drive riding trowels sit on trailer awaiting use in finishing reinforced concrete elevated slabs of building. Monroe Pointe Building, Denver, Colorado, December, 2006.

My Construction Photos > Caterpillar 140H motor grader does fine grading of soil for city street with its blade, Denver, Colorado, 2006

My Construction Photos > Placing concrete with concrete pump: Concrete shoots out end of elephant trunk in a stream of concrete directed by the worker at the left into wood forms, where it joins with the reinforcing steel to create horizontal foundation beams. To the right a second worker inserts and withdraws a flexible concrete vibrator that helps consolidate the concrete. Behind him a worker carries on his back the motor that drives the vibrator.
In background is temporary support wall, consisting of vertical steel soldier piles/beams that support wood breast boards that support the soil of the vertical soil embankment at the edge of the excavation. Soldier beams are supported at mid-height against lateral movement of soil by steel rod tiebacks, shown here with orange steel plates. Colorado Street, Denver, Colorado, December 4, 2006.

My Construction Photos > International dump truck filled with soil to be used to backfill hole being excavated to repair leak in water main under street. Montview Blvd, Fitzsimons/University of Colorado Hospital Campus, Aurora, Colorado, December, 2006.

Dinosaurs, prehistoric animals: Allosaurus fragilis, from Colorado, is a large meat eating dinosaur of the Late Jurassic period, about 150 million years ago. National Museum of Natural History, Washington, DC, November 2006.

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Camera: Canon (Canon Eos 5d) |

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Original size: 808px x 1068px |

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filename: allosaurus_1283 |

Keywords: washington colorado animal meat fossil november skeleton jurassic dinosaur prehistoric fragilis allosaurus late jurassic meat eater national museum of natural history

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