My Construction Photos > Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Photo shows detailed view of dozer blade pushing on rear push block of scraper.  The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
My Construction Photos > Boats/ships/barges: The Fluvius barge ship pushes two other barges under the Elizabeth Bridge headed upstream on the Danube River in Budapest, Hungary, July 2006.
My Construction Photos > Bridge construction, steel construction: Superintendent at upper right listens to radio with right ear while directing the dozer operators pushing the bridge with signals of his left hand. Ironworkers standing on top of each temporary bridge pier watch process and signal superintendent with hand signals/ radio if there is reason to stop. They also unlock and lock rollers to allow movement when dozers push and to prevent movement thereafter.Superintendent is standing on stack of temporary bridge deck panels, which will span transverse bridge joists to provide final driving surface. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel construction: Ironworker is taken by boat/skiff, driven by another ironworker, to temporary bridge pier. Both are wearing life jackets for water safety. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel construction: Superintendent at upper right listens to radio with right ear while directing the dozer operators pushing the bridge with signals of his left hand. Ironworkers standing on top of each temporary bridge pier watch process and signal superintendent with hand signals/ radio if there is reason to stop. They also unlock and lock rollers to allow movement when dozers push and to prevent movement thereafter.Superintendent is standing on stack of temporary bridge deck panels, which will span transverse bridge joists to provide final driving surface. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel construction: An International dozer and a Dressta dozer both push on the erection end of the Mabey 
Bridge to temporarily carry Route 113 vehicle traffic to allow rehabilitatrion of the adjacent steel truss bridge over the Merrimack River. Additional prefab panels will then be erected to lengthen the bridge, which then can  be pushed out further. Cycle continues until bridge reaches west shore of Merrimack. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel pile construction: Concrete bridge abutment sits on the soil embankment on east side of Merrimack River. Soil is supported by retaining wall formed of vertical structural steel soldier beams/piles driven deep into the soil. Soil is directly supported by timber breastboards inserted between flanges of H-sections. (See inserted detail.) Tyngsborough, Massachusetts 2005.
My Construction Photos > Bridge construction, steel pile construction: Concrete bridge abutment sits on the soil embankment on east side of Merrimack River. Soil is supported by retaining wall formed of vertical structural steel soldier beams/piles driven deep into the soil. Soil is directly supported by timber breastboards inserted between flanges of H-sections. (See inserted detail.) Tyngsborough, Massachusetts 2005.
My Construction Photos > Bridge construction, steel construction: View toward west bank of Mabey Bridge that is being erected and pushed across Merrimack River from the east bank. The Mabey 
Bridge will temporarily carry Route 113 vehicle traffic to allow rehabilitatrion of the adjacent steel truss bridge over the Merrimack River.  At this point the bridge is two piers from its destination, to be pushed across the rollers on the pier it is approaching and then landed on the timber cribbing on the far piers. The bridge will be anchored at the west bank concrete abutment beyond the two far piers. Tyngsborough, Massachusetts 2005.
Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Photo shows detailed view of dozer blade pushing on rear push block of scraper. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
My Construction Photos > Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Photo shows detailed view of dozer blade pushing on rear push block of scraper.  The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Photo shows detailed view of dozer blade pushing on rear push block of scraper. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
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