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My Construction Photos > Allis-Chalmers HD-9 tractor/bull dozer. 1954, 54 hp, 18,800 lb. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.

My Construction Photos > Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.

My Construction Photos > Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.

My Construction Photos > Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.

My Construction Photos > Catepillar D2 5J or 5U tractor/ bulldozer. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rip Carr

My Construction Photos > Euclid TC-12 tractor/ bulldozer with cable adjusted dozer blade. Known as the Twin Euc, the tractor is built from two smaller tractors side-by-side, with one track from each, which can be operated independently. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rip Carr

My Construction Photos > Caterpillar RD4 tracked tractor tows a pull grader. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rob Carr

My Construction Photos > Austin grader: The earliest motorized graders consisted of grader attachments mounted on modified crawler and industrial wheel tractors. This design was made obsolete by later machines that were built from the ground up as motor graders, rather than as modifications to or attachments for other types of machines. This machine consists of a McCormick-Deering 10-20 wheel tractor with an Austin Manufacturing grader attachment. It is an ancestor to the famous Austin-Western line of motor graders. Museum volunteers restored her in stages in 2003 and 2006. Historical Construction Equipment Museum, Bowling Green, Ohio, 2007. (Caption by HCEA)

My Construction Photos > Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Dozer blade pushes on rear push block of scraper. Bowl has been lowered so its cutting edge cuts soil, and scraper apron at front of bowl has been lifted. Therefore, the bowl fills with soil as scraper moves with asistance of dozer pushing it forward. 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.

My Construction Photos > Caterpillar 621F wheel-tractor scraper transports soil from cut area to fill are. After being filled, bowl is raised to clear the ground, and front apron of bowl is lowered to keep soil in bowl as scraper travels. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.

My Construction Photos > Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.

My Construction Photos > Caterpillar D6R bull dozer moves earth to rough grade path of scraper excavating earth. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.

My Construction Photos > Caterpillar 621F wheel-tractor scraper travels uphill empty, with bowl raised for traveling. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.

My Construction Photos > Caterpillar D4H XL bull dozer moves earth at site of new North East Branch Library, Ann Arbor, Michigan, May, 2007

My Construction Photos > Construction equipment: Caterpillar D250E 25 ton, articulated, rear dump, rough terrain, off road hauler. Plymouth Green Crossings, Ann Arbor, Michigan, March 2007.

My Construction Photos > Bay Lynx Multicat stone/soil spreader mounted on International Paystar 5000 truck chassis. Conveyor feeds from bottom of truck bed and dumps stone/soil onto spreader conveyor that extends from rear. Spreader conveyor accurately throws stone/soil a distance and direction controlled by speed and direction of the spreader conveyor. Plymouth Road, Ann Arbor, Michigan. March 2007.

My Construction Photos > Bay Lynx Multicat stone/soil spreader mounted on International Paystar 5000 truck chassis. Conveyor feeds from bottom of truck bed and dumps stone/soil onto spreader conveyor that extends from rear. (Spreader conveyor is here rotated forward, on right side, for traveling. Spreader conveyor accurately throws stone/soil a distance and direction controlled by speed and direction of the spreader conveyor. Spreader conveyor controls are at top left of truck rear. Plymouth Road, Ann Arbor, Michigan. March 2007.

My Construction Photos > Earthmoving construction: Caterpillar 9506 front end loader picks up and loads Western Star truck trailer with large stones from excavation for building extension. In background is vibratory pile driver and its power station. University of Michigan dormitory project, Ann Arbor, Michigan, December 2006

My Construction Photos > Earthmoving construction: Caterpillar 9506 front end loader picks up and loads Western Star truck trailer with large stones from excavation for building extension. In background is vibratory pile driver and its power station. University of Michigan dormitory project, Ann Arbor, Michigan, 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 > Earthmoving, embankment, shore construction: Deere 450J LGP bull dozer, 74 hp, 17,525 lb, moves/rough grades sand of Pensacola Bay/Gulf of Mexico embankment to be loaded on trucks by backhoe for transport away from site. Pensacola, Florida June 2006.

My Construction Photos > Earthmoving, embankment, shore construction: Deere 450J LGP bull dozer, 74 hp, 17,525 lb, moves/rough grades sand of Pensacola Bay/Gulf of Mexico embankment to be loaded on trucks by backhoe for transport away from site. Pensacola, Florida June 2006.

My Construction Photos > Earthmoving construction: Caterpillar 287B rubber track skid steer multi terrain loader is being checked out by young operator at annual Science of Big Machines exhibit by the northern Ohio construction industry at COSI, the Center for Science and Industry, Toledo, Ohio, June 2006.

My Construction Photos > Earthmoving construction: Caterpillar 924G articulated wheel loader moves gravel from stack to base for new road and consolidates gravel pile. Articulated steering is provided by hinging/jointing between cab and front wheels, which provides tight loading and turning radius. The turbocharged diesel engine drives the loader at up to 24 mpg forward and 13.4 mpg backwards. Michigan 2006.

My Construction Photos > Earthmoving construction: Caterpillar 924G articulated wheel loader moves gravel from stack to base for new road and consolidates gravel pile. Articulated steering is provided by hinging/jointing between cab and front wheels, which provides tight loading and turning radius. The turbocharged diesel engine drives the loader at up to 24 mpg forward and 13.4 mpg backwards. Michigan 2006.

My Construction Photos > Earthmoving construction: Caterpillar 924G articulated wheel loader moves gravel from stack to base for new road and consolidates gravel pile. Articulated steering is provided by hinging/jointing between cab and front wheels, which provides tight loading and turning radius. The turbocharged diesel engine drives the loader at up to 24 mpg forward and 13.4 mpg backwards. Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Soil, earth construction: Caterpillar 613C elevating scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper has just finished making its dumping pass and will now turn left to make its loading runm. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is traveling with bowl/pan edge up, from dumping soil at left to making a loading pass to the right. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl cutting edge lowered to scrape up earth and elevating paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl edge lowered to scrape up earth and paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. This is close upview of lower end of the chain and paddle elevating conveyor. We see four paddles, as they are lowered and rotated to pick up soil against the edge of bowl. The forward side of the elevating conveyor moves downward with paddle buckets pointing downward, and the rear side moves upward with the paddles pointing upward, holding excavated soil that they dump in bowl as they turn over at the top. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl edge lowered to scrape up earth and paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. This is close up view of upper end of the chain and paddle elevating conveyor. We see six paddles, s they are lifted and rotated to drop their soil into the scraper bowl. The forward side of the elevating conveyor moves downward with paddle buckets pointing downward, and the rear side moves upward with the paddles pointing upward, holding excavated soil that they dump in bowl as they turn over at the top. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar 613C elevating scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a dump/unloading pass, with its bowl edge raised and the soil ejector and wheel paddles pushing soil in bowl out, as can be seen here. Ann Arbor, Michigan 2006.

My Construction Photos > Soil, earth construction: Caterpillar D4G LP dozer spreads soil in bottom of excavation. Caterpillar 345BL hydraulic excavator excavates soil from same excavation. Apparently, the bucket of the excavator has been lowered to rooof of dozer, to consternation of dozer operator. East Ann Arbor Clinic, University of Michigan Health System, Ann Arbor, Michigan 2005

My Construction Photos > Earth moving construction, personnel lift: Construction equipment for rent at hardware store. Bobcat 763 loader with 1,500 lb/ 680 kg capacity, 46 hp/ 34 kw liquid-cooled diesel engine on left. Terramite T7 backhoe/loader excavator with with 26 hp diesel engine in center. Bil-Jax XLB-4319 articulating boom lift at right has 43 ft working height, 19 ft side outreach, 700 degree rotation, outriggers, and 450 lb capacity. Ann Arbor, Michigan December 2005

My Construction Photos > Earth moving/soil construction: Volvo L70E 112/152 kw/hp wheel mounted front end loader pulls Dynapac single drum vibratory soil compactor/ roller out of mud hole by steel chain. Building in bachground is concrete block masonry laid from interior adjustable height masonry scaffold. Naples, Florida November 2005

My Construction Photos > Earth moving/soil construction: Dynapac single drum vibratory soil compactor/ roller being pulled out of mud hole by steel chain attached to large front end loader. Naples, Florida November 2005

My Construction Photos > Earthmoving construction: Caterpillar 613C self-loading scraper moves earth for highway rehab. Scraper has 175 hp engine pulling 11 cubic yard bowl. US 405 highway between Los Angeles and Las Vegas, 2005.

My Construction Photos > Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor construction bulldozer. Broadway Bridge construction, Ann Arbor, 2003.

My Construction Photos > 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

My Construction Photos > Earthmoving construction equipment: Caterpillar D4C LBP track mounted bull dozer mounts goose-neck low boy trailer using front flip ramps in foreground (circled). Trailer will be hauled by truck tractor backing up and mating male hitch on gooseneck trailer yoke to slotted female hitch on this lowboy trailer body. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.

My Construction Photos > General, masonry, earth construction: Busy crews fill alley with construction activity. Two workers in ight foreground are stretching string for place masonry around manhole. Worker in left foreground is sawing material, probably for formwork, for concrete/ masonry using portable diamond blade rotary saw. Crew in background with Caterpillar backhoe is coarse grading the gravel base for paving. Beyond backhoe is Caterpillar backhoe/loader parked across alley entrance from Liberty Street. Alley between Washington and Liberty, 1/2 block West of Main, Ann Arbor, Michigan, 2005.

My Construction Photos > Soil, earth construction: Wacker WP 1550 manually operated walk-behind vibratory plate compactor compacting soil fill behind retaining wall. Geotech fabric covers back side of retaining wall. In distance is nuclear guage and technician that measures density of compacted soil. To right is unexcavated earth embankment. Fill will be placed up to top of retaining wall, compacted in lifts specified by design, probably 6, 8, or 12 inches. Huron Parkway, Ann Arbor, 2005.

My Construction Photos > Soil construction, foundation construction: Nuclear gauge setup and setup tools, for measuring density of soil. Soil is fresh fill behind a retaining wall that has just been compacted by a manually operated vibratory soil compactor, and the technician is measuring soil density. On left side is geo-fabric to contain soil fines and water, for water to drain out at base of wall through flexible corrugated plastic soil tubing. Huron Parkway, Ann Arbor, 2005. (Note: Non-nuclear gauges have made nuclear gauges obsolete. See Electrical Density Gauge and Geogauge at www.humboldtmfg.com, which won the Nova Award for construction innovation.)

My Construction Photos > Soil, earth construction: Caterpillar 426C diesel powered, wheel-mounted, backhoe/loader, resting on rear tires and loader bucket. In background is Caterpillar backhoe excavator in alley between Washington and Liberty, 1/2 block West of Main. Liberty St., Ann Arbor, Michigan, 2005.

My Construction Photos > Earth moving construction: Caterpillar CS-563D single drum vibratory soil compactor compacts gravel base for street at Huron High School. Machine has 84 inch compaction width, operating weight of 25,000 lb, and is driven by Cat 3116T turbo-charged 153 gross hp diesel engine. Ann Arbor, Michigan, August 2005.

My Construction Photos > Earth Construction: Caterpillar D8R (front) and D4C bulldozers move soil together. North Campus construction, University of Michigan, Ann Arbor, 2004.

My Construction Photos > Earth Construction: Caterpillar D4C 80 horsepower, 8 ton crawler tractor bulldozer. North Campus, University of Michigan, Ann Arbor, 2004.

My Construction Photos > Earth Construction: Caterpillar D8R 305 earthmoving horsepower, 41 ton crawler tractor bulldozer. North Campus, University of Michigan, Ann Arbor, 2004.

My Construction Photos > Earthmoving construction: Dresser Pay Loader grapgraph h wheeled front end loader has just dumped a load of earth and is returning to the other side of project to excavate and transport another load. Huron High School, Ann Arbor, Michigan 2005.

My Construction Photos > Earthmoving construction: Dresser Pay Loader wheeled front end loader dumps soil it excavated on other side of project. Huron High School, Ann Arbor, Michigan 2005.

My Construction Photos > Caterpillar 2447 motor grader grading gravel for pavement base construction. Depot Street, Ann Arbor, 2004.

My Construction Photos > Caterpillar 2447 motor grader blade, with front scarifier. Depot Street construction, Ann Arbor, 2004.

My Construction Photos > Construction backhoes, hydraulic crane, front end loader in tight work area perform earth moving and concrete foundation construction. Broadway Bridge, Ann Arbor, 2003.

My Construction Photos > Soil moving, road construction: Worker pushes a gasoline driven vibratory soil compactor on a crushed gravel layer to provide base for street curb and sidewalk. Additional crushed gravel is in shovel of Caterpillar skeed steer loader on right. In foreground is excavation in which another worker is building a drain basin with concrete block and mortar. Huron Parkway, Ann Arbor, Michigan, 2005.

My Construction Photos > Construction rear dump truck dumps load of earth to cover up pipe and backfill 5 ft deep trench. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Site construction: Caterpillar 637 wheel tractor scraper, rear right view showing rear push engine, 34 cu yd (heaped), 24 cu yd (struck) pan, preparing building sites, Geddes Road, Ann Arbor, 2004.

My Construction Photos > Site construction: Caterpillar 637 wheel tractor scraper, front right view showing front pull engine, 34 cu yd (heaped), 24 cu yd (struck pan), preparing building sites, Geddes Road, Ann Arbor, 2004.

My Construction Photos > Site construction: Caterpillar 637 wheel tractor scraper, front left view showing front pull engine, 34 cu yd (heaped), 24 cu yd (struck) pan, preparing building sites, Geddes Road, Ann Arbor, 2004.

My Construction Photos > Front end loader moves the Earth.

My Construction Photos > Road construction: Caterpillar D6R track type tractor bull dozer pushes earth for access road for US 3. Chelmsford, Massachusetts, 2003.

My Construction Photos > Caterpillar D6M 140 horsepower, 18 ton crawler tractor bulldozer. Depot Street, Ann Arbor, 2004.

My Construction Photos > Site construction: John Deere 640C front end loader loads bucket of soil to load truck in background. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Site construction: John Deere 640C front end loader loads bucket of soil to load truck in background. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Site construction: John Deere 640C front end loader carries bucket of soil to load truck in background. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Site construction: John Deere 640C front end loader dumps bucket of soil to load truck. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Bridge construction: Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor bulldozer. In background is Caterpillar CP-563C single drum padfoot vibratory soil compactor. Broadway Bridge, Ann Arbor, 2003.

My Construction Photos > Bridge construction: Caterpillar CP563C single drum vibratory padfoot soil compactor. Broadway Bridge, Ann Arbor, 2003.

My Construction Photos > Site construction: Ingersoll Rand SD-100 single drum vibratory soil/ asphalt compactor/ roller. Huron Village Shopping Center, Ann Arbor, 2002.

My Construction Photos > Earthmoving construction: Caterpillar 623G Elevating Scraper moves earth for new highway. Las Vegas, Nevada, January 2006.

My Construction Photos > Pavement construction: Case 95XT skid steer tractor with front end loader attachment moves backward, with front wheels off ground, and grades/levels pavement base soil with shovel blade edge. Depot Street, Ann Arbor, 2004

My Construction Photos > Pavement construction: Case 95XT skid steer tractor with front end loader attachment moves forward, with front wheels off ground, and grades/levels pavement base soil while filling shovel with soil. Depot Street, Ann Arbor, 2004

My Construction Photos > Earthmoving construction: Komatsu D61PX crawler tractor bull dozer moves granular soil out of collected water. Dixboro Bridge, Ann Arbor, 2004.

My Construction Photos > Earth construction: Peterbilt diesel tractor pulls tandem rear dump trailers on graded site. Hyndai Automotive Tech Center, Geddes & Leforge roads, just east of Ann Arbor, 2004.

My Construction Photos > Caterpillar D6H XL crawler tractor bulldozer traveling in its own dust, compacting top of soil for better runoff of predicted rain. Hyndai Automotive Tech Center, east of Ann Arbor, 2004.

My Construction Photos > Earthmoving construction: Volvo A35C end dumping, 6x6 traction, 385 horsepower diesel, 57,000 pound, 35 ton payload off road hauler moves excavated earth on job site. Hyundai Automotive Tech Center, east of Ann Arbor, 2004.

My Construction Photos > Earthmoving construction: Large drag line removes overburden of earth on top of coal beds to expose the coal so it can be strip mined. Note size of bucket relative to equipment on left. Wyoming mine operated by Kennecott Energy, 2002. Photo by Scott M. Carr

My Construction Photos > Earthmoving construction: Volvo A35C end dumping, 6x6 traction, 385 horsepower diesel, 57,000 pound, 35 ton payload off road hauler moves excavated earth on job site. Hyundai Automotive Tech Center, east of Ann Arbor, 2004.

My Construction Photos > Construction earth moving equipment: Two-axle, four wheel trailer mounted diesel tank that transports fuel for construction equipment used off-road, such as the backhoe excavators and front end loaders moving earth on this site. Off-road diesel carries no road tax and may not conform to fuel demand os on-road uses, such as trucks. Ann Arbor, Michigan, 2004.

My Construction Photos > Construction Equipment: Caterpillar D6R XL 175 horsepower, 21 ton crawler tractor bulldozer moving earth. Sams Club, Ann Arbor, 2004.

My Construction Photos > Landscape construction: Laborer uses hand rake to smooth sloped wall of runoff water catchment. Sams Club, Ann Arbor, 2003.

My Construction Photos > Earthmoving construction: Terex 2566B 6x6 drive end dump articulated off-road hauler moves stone for rip rap. Sams Club, Ann Arbor, 2004.

My Construction Photos > Earth moving construction trucks: Peterbilt tandem rear end dump trucks deliver soil to build up South side ramps for Dixboro Bridge. Concrete bridge piers are mid right, and background is the North side of the Huron River. Ann Arbor, MI, 2002.

My Construction Photos > Earth moving construction trucks: Peterbilt tandem rear end dump trucks deliver soil to build up South side ramps for Dixboro Bridge. Dust cover has been pulled over top of truck/trailer beds to stop dust and other debris from blowing out while traveling on roads. Ann Arbor, MI, 2002.

My Construction Photos > Bridge construction site: Lower half of photo is south ramp of Dixboro Bridge to cross the Huron River. Upper half is the North approach, and in the distance is the intersection of Dixboro Rd with Geddes Rd. In mid-photo are tops of concrete bridge piers with foundations in the river bottom. Dump trucks are bringing fill soil from which ramp is being built. We can see the raised truck bed of one dump truck in right center of photo. In order to dump soil, it decoupled from its tandem trailer, which waits at far right center. Ann Arbor, MI, 2002.

My Construction Photos > Peterbilt tandem rear end dump trucks deliver soil to build up South side ramps for Dixboro Bridge. Dust cover has been pulled over top of truck/trailer beds to stop dust and other debris from blowing out while traveling on roads. Ann Arbor, MI, 2002.

My Construction Photos > Earth moving construction: Bobcat 863 skid-steer tractor with stone separating blade/bucket lifts and sifts soil to extract and separate stones. In upper right, operator is picking out and tossing away soil clumps that sifted out with stones. Dixboro Bridge, Ann Arbor, MI, 2004.

My Construction Photos > Earth moving construction: Bobcat 863 skid-steer tractor with stone separating blade/bucket lifts and sifts soil to extract and separate stones. Dixboro Bridge, Ann Arbor, MI, 2004.

My Construction Photos > 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.

My Construction Photos > Earth moving construction: Bobcat 863 skid-steer tractor with stone separating blade/bucket lifts and sifts soil to extract and separate stones. Dixboro Bridge, Ann Arbor, MI, 2004.

My Construction Photos > Earth moving construction: Bobcat 863 skid-steer tractor with stone separating blade/bucket lifts and sifts soil to extract and separate stones. Dixboro Bridge, Ann Arbor, MI, 2004.

My Construction Photos > Soil construction, earth moving: Caterpillar D5M 110 hp track mounted bull dozer pushes earth into position for front end loader to pick it up and deliver it to another part of project. Huron Parkway, Ann Arbor, Michigan 2005.

My Construction Photos > Earthmoving construction: John Deere 310G wheeled backhoe loader picks up loader bucket of soil to transport on street. Broadway Bridge, Ann Arbor, Michigan, 2004

My Construction Photos > Earthmoving construction: John Deere 310G wheeled backhoe loader transports bucket of soil on street. Broadway Bridge, Ann Arbor, Michigan, 2004

My Construction Photos > Earthmoving construction: Crawler mounted hydraulic backhoe reaches to excavate earth for basement. Laborer operates vibratory soil compaction machine in area recently excavated, beyond backhoe. In right background, soil is supported by timber breastboards. Breastboards are supported by structural steel H shape soldier beams, which were themselves driven as piles deeply into the soil, below bottom of basement. Cardiovascular Center, University of Michigan Hospital, Ann Arbor, 2004.

My Construction Photos > Earthwork, steel, concrete construction: Basement area has WF steel soldier beam, timber breastboard, tie back temporary retaining wall in left center. Bundles of resteel sit at grade level behind retaining wall, and two horizontal cables provide excavation edge fall protection. Right center bottom to top cast-in-place (CIP) reinforced concrete foundation piers sitting on CIP spread footings below and support base plates for H-section columns for superstructure. Protruding from piers are rebars, in circular pattern in piers, and 4 anchor bolts for column base plates. The rebars will be cut off before base plates and columns are set. heavy copper wire also protrudes from top of piers that is also attached to an electric ground plate in soil at bottom of footing. The cable will be attached/ spliced to metal above to provide an electic ground for building. Resteel extends above CIP foundation wall at bottom and upper right to provide reinforcing continuity at joint with future wall above and CIP slab to right. Backfill at bottom of excavation is sand, and additional granular material at top rear will later provide vertical support for CIP slab. Pink polystyrene sheets stacked in excavation will provide insulation when attached to exterior of foundation/ basement wall, as at mid-height far right. Cardiovascular Center, University of Michigan Hospital, Ann Arbor, 2004.

My Construction Photos > Earthmoving construction: Volvo L90D 160 hp wheeled tractor front-end loader, parked at the side of a parking lot while the operator has a 2:00 PM afternoon snooze, waiting for some action. University of Michigan, Ann Arbor, February 2005.

My Construction Photos > Earthmoving construction: Volvo L90D 160 hp wheeled tractor front-end loader, parked at the side of a parking lot while the operator has a 2:00 PM afternoon snooze, waiting for some action. University of Michigan, Ann Arbor, February 2005.

My Construction Photos > Earthmoving construction: Rolling dice the hard way, with an Ebsco bucket on a Link-Belt backhoe excavator at the Link-Belt Rodeo. 1st day of CONEXPO 2005, Las Vegas, Nevada, March 15, 2005.

My Construction Photos > Earthmoving construction: Caterpillar 627G 330 hp / 246 KW 22 yd3 / 17m3 (heaped), 15.7 yd3 / 12 m3 (struck), 84,000 lb / 38,000 kg, 42 ft / 13 m length self-loading scraper. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Caterpillar 627G 330 hp / 246 KW 22 yd3 / 17m3 (heaped), 15.7 yd3 / 12 m3 (struck), 84,000 lb / 38,000 kg, 42 ft / 13 m length self-loading scraper. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Case 721D XT wheel loader, 127 kw/ 170 hp, 2.3 m3/ 3 CY, 6,300 kg/ 14,000 lb. CONEXPO, Las Vegas, Nevada, March 15, 2005.

My Construction Photos > Earthmoving construction equipment: Second day of CONEXPO 2005. The John Deere 1050C dozer with ripping teeth on back. Las Vegas, Nevada, March 16, 2005.

My Construction Photos > Earthmoving construction: Terex 417B 17 cu yd tractor pulled scraper (manufactured by Noble). CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Concrete, asphalt, aggregate construction: Keestrack Pioneer 614 mobile track mounted stone crusher and aggregate screener, manufactured in Belgium. Other good photos are at www.keestrack.com. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving, underground construction: Guntert & Zimmerman (G&Z) Eagle 6500SS side shift bucket on wheel trencher. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Bell 4206D/T rubber track scraper towing tractor develops 65,000 lb of drawbar pull, will tow 3 fully loaded 18 CY scrapers in rough terrain. The 4206D/T replaces the 4 wheels of the 4206D tractor with 4 ATI 6,000 lb individual track assemblies having 36" wide continuous tracks (note in photo). CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: One of the four ATI 6,000 lb individual 36" wide by 72" contact length continuous drive tracks on the four Bell 4206D/T rubber track scraper towing tractor. Tractor develops 65,000 lb of drawbar pull, will tow 3 fully loaded 18 CY scrapers in rough terrain. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving, aggregate construction: Liebherr 580 2 plus 2, 5 m3 bucket, wheeled front end loader and two dollies and a cycle in patriotic colors. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving, aggregate construction: Liebherr HS 895 HD Litronic hydraulic open lattice boom 91,000 kg / 400,000 lb capacity crawler crane operating as dragline with large 5+ CY/CM Hendrix draining dragline bucket. Maximum boom for dragline is 55 m / 180 ft, with 55,000 kg / 121,500 lb counterweight. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving, aggregate construction: Large 5+ CY/CM Hendrix draining dragline bucket is operated by Liebherr HS 895 HD Litronic hydraulic open lattice boom 91,000 kg / 400,000 lb capacity crawler crane. A dragline bucket is controlled by three elements: The vertical wire rope above the bucket raises and lowers the bucket either with or independent of the boom raising/lowering. The chain from front of bucket is pulled in and let out by the wire rope operated by a front spindle. The short wire rope attached to the top-front of bucket allows the bucket to pitch front first into the excavation pit, then be pulled upward at end of loading to capture the load. The basic operation is to pull in a load, then release the bucket to swing forward and be lowered to capture the next load. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving, aggregate construction: Liebherr HS 895 HD Litronic hydraulic open lattice boom 91,000 kg / 400,000 lb capacity crawler crane operating as dragline with large 5+ CY/CM Hendrix draining dragline bucket. Maximum boom for dragline is 55 m / 180 ft, with 55,000 kg / 121,500 lb counterweight. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: John Deere 850J WLT 192 gross hp / 143 KW tractor/ dozer. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > . CONEXPO 2005, aggregate, stone construction: Super 18 Stone Slinger offloading and conveyor system. Conveyor distributes aggregate and stone with 220 degree radius, up to 70 ft away. CONEXPO Silver Lot, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Mack dump truck, pulling a low-boy equipment trailer. Pepperrel, Massachusetts, 2005.

My Construction Photos > Earthmoving construction: Mack dump truck, pulling a low-boy equipment trailer. Pepperrel, Massachusetts, 2005.

My Construction Photos > Embankment construction: Timber retaining wall supporting earth cut at Huron Hills Golf Course on Huron Parkway south of the Huron River, after plants were stripped to reconstruct embankment. Ann Arbor, Michigan, 2005.

My Construction Photos > Earthmoving construction: Solideal rubber tracks fit on John Deere and JCB wheeled skid steer loaders. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper has filled its bowl doing cut and is traveling with bowl raised to fill area to dump its bowl. November, 2006.

My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper has filled its bowl doing cut and is traveling with bowl raised to fill area to dump its bowl. November, 2006.

My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper filled its bowl doing cut and raised bowl to travel. It has now lowered bowl and its ejector is pushing the soil load out the front of lowered bowl to dump the load. November, 2006.

My Construction Photos > Earthmoving construction: Case 865 DHP motor grader with variable horsepower for long haul grading and snow removal: 125-141 kw/ 168-190 hp, 2.3 m3/ 3 CY, 14,500 kg/ 32,100 lb, 4 m/13 ft blade. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Komatsu WA380 wheel loader, 140 kw / 187 hp, 18,000 kg / 40,000 lb, 4 m3 / 5 yd3 bucket. Behind and towering above the loader is the PC1800 giant mining/ construction backhoe excavator, with people standing on top. CONEXPO, Las Vegas, Nevada, March 15, 2005.

My Construction Photos > Earthmoving construction: Case SV208 single drum vibratory roller with padfoot surface: 75 kw/100 hp, 7,140 kg/15,700 lb, 1.7 m/66 in. wide. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Soil construction, concrete construction: Terex Bartell walk-behind power equipment. In foreground is a edging trowel to float and finish concrete slabs around columns, along walls, and in confined spaces. Right rear are two power trowels for concrete slabs. Left rear are two vibratory plate soil compactors, which operate at 5040 or 5800 cycles per minute. CONEXPO 2005, Las Vegas, Nevada, March 15-19, 2005.

My Construction Photos > Earthmoving construction: Bobcat Toolcat 5600 utility work machine: 44 hp diesel engine, 4-wheel drive, all-wheel steer, 2-seat cab with roll-over,falling object protection, cargo area with hydraulic dump. On its front is Bobcat trencher attachment. CONEXPO, Las Vegas, Nevada, March 15, 2005.

My Construction Photos > Earthmoving construction: Bobcat 341 crawler mounted compact hydraulic excavator/backhoe with blade. Lift capacity is 2500 lb/ 1150 kg. Mounted on boom is rotating clamshell bucket. CONEXPO, Las Vegas, Nevada, March 15, 2005.

My Construction Photos > Earthmoving construction: John Deere 400D articulated truck/hauler and John Deere 450CLC crawler mounted backhoe excavator. 400D is 413 hp/308 kW, with 145,000 lb/66,000 kg gross weight, 82,000 lb/37,000 kg payload, 22 yd3/17 m3 struck capacity. 450CLD is 316 hp/236 kW, 40 ft/12 m reach, 27,300 lb/12,000 kg capacity @ 25 ft. CONEXPO, Las Vegas, Nevada, March 15-19, 2005.