Site Prep January-February 2012

JANUARY/FEBRUARY 2012 | WWW.SITEPREPMAG.COM

VOLUME 6 | ISSUE 1

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The Connected Contractors Resource JANUARY/FEBRUARY 2012 | VOLUME 6 ISSUE 1 | WWW.SITEPREPMAG.COM

FEATURES 8 Plan for a Successful Demo Project National Demolition Association’s tool can help contractors prepare for the unexpected. by Michael R. Taylor, CAE

12 Seeing Beneath the Surface A 3D GPS system takes the guesswork out of underwater excavation on Ohio River project. by Daniel C. Brown

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16 Coming Clean N.Y. firm turns to skid steers, telehandlers to get down and dirty when restoring contaminated sites. by Jessica Simpson

20 Equipment Focus: Excavators Take a look at 15 of the industry’s latest excavators.

22 Attachment Focus: Bucket/Thumb Attachments Go the extra mile with eight new bucket/thumb attachments.

30 Case Study: Seeking an Underground View A Pennsylvania contractor invests in radar to push productivity to another level.

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COLUMN 26 Virtual Stringline Exploring Subsurface Utility Mapping by Harry O. Ward, PE

THE DIRT TALK BLOG @ WWW.SITEPREPMAG.COM

DEPARTMENTS 4 Editor’s View 6 Industry Dirt 24 You Dig This

32 Product Roundup 34 Classified Ads 35 Alternate Routes

Winter can be a drag, but don’t forget – it’s also the most wonderful time of the year! Check out our funny winter construction videos in our Dirt Talk blog. It might help you realize there’s fun to be had regardless of the weather!

On the Cover: Using the National Demolition Association’s Demolition Planning Document can help contractors minimize problems on their projects from the outset. Photo courtesy of Liebherr.

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SITE PREP (ISSN 1932-6122) is published 8 times annually, Jan/Feb, Mar, Apr, May/Jun, Jul/Aug, Sep, Oct and Nov/Dec, by BNP Media II, L.L.C., 2401 W. Big Beaver Rd., Suite 700, Troy, MI 48084-3333. Telephone: (248) 362-3700, Fax: (248) 362-0317. No charge for subscriptions to qualified individuals. Annual rate for subscriptions to nonqualified individuals in the U.S.A.: $115.00 USD. Annual rate for subscriptions to nonqualified individuals in Canada: $149.00 USD (includes GST & postage); all other countries: $165.00 (int’l mail) payable in U.S. funds. Printed in the U.S.A. Copyright 2012, by BNP Media II, L.L.C. All rights reserved. The contents of this publication may not be reproduced in whole or in part without the consent of the publisher. The publisher is not responsible for product claims and representations. Periodicals Postage Paid at Troy, MI and at additional mailing offices. POSTMASTER: Send address changes to: SITE PREP, P.O. Box 2147, Skokie, IL 60076. Canada Post: Publications Mail Agreement #40612608. GST account: 131263923. Send returns (Canada) to Pitney Bowes, P.O. Box 25542, London, ON, N6C 6B2. Change of address: Send old address label along with new address to SITE PREP, P.O. Box 2147, Skokie, IL 60076. For single copies or back issues: contact Ann Kalb at (248) 244-6499 or [email protected].

Join Editor Karen Scally as she counts down this month’s five top products in Episode 4 of Site Prep’s Top 5. Smartphone users, scan the tag to watch it now!

SITEPREP | JANUARY/ FEBRUARY 2012

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Editor’s View

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BY KAREN M. SCALLY 2401 W. Big Beaver Rd., Suite 700, Troy, MI 48084 Phone: 248/362-3700X Fax: 248/362-5103

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elieve it or not, I often find myself wishing I had more time to read. Yes, I realize that as an editor, I spend the majority of my day devoted to reading. Despite that fact, there’s still an abundance of interesting information out there that I want to absorb, and frankly, not enough hours in the day to do so. Because I don’t have enough time to read everything I would like to, I try to find ways to focus in on the things that interest me most. I’ve personalized my Google News page so it shows the latest items on the topics that are most important to me. I’ve bookmarked my favorite websites and begin my day by scanning the headlines on those pages. I’ve downloaded apps that allow me to quickly digest what I need to know. I’ve set alerts for certain keywords and subscribe to email newsletters that aggregate content. Since I don’t have time to waste, I don’t want to spend my precious moments wading through pages of nonessential information. Just get me to the good stuff. In 2012, we’re using that philosophy as the basis for introducing a new feature in Site Prep. We wanted to find a way to bring you more information on the things you’re already most interested in. So, starting in this issue, we’re excited to debut a new section, called “You Dig This.” This section will provide key details and images about one new product that’s getting the most clicks on our website. In it, you’ll learn why this product is important to your job, what makes this product different from others and what benefits you could expect from using this product as a customer. Our first “You Dig This” highlights Komatsu’s PC390LC-10 Hydraulic Excavator. Check it out on page 24 and look for it in every issue under the “Departments” section in the Table of Contents in the front of the magazine. We hope you find this information useful to your business. Please let me know what you think about this new addition to Site Prep—or about other new products or topics that you’d like to see more coverage on in the future. After all, as editor, it’s my job to help get you straight to the good stuff.

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SITE PREP MISSION STATEMENT SITE PREP FOCUSES ON THE CHALLENGES AND OPPORTUNITIES OF SITE PREPARATION, INCLUDING SITE CLEARING, EARTHMOVING, UTILITIES AND ENVIRONMENTAL ACTIVITIES. WE COVER EMERGING TECHNOLOGIES FOR AND THE EVOLVING INTERACTION AMONG CONTRACTORS, ENGINEERS AND RELATED PROFESSIONS. THROUGH IN-DEPTH COVER AGE, WE PROVIDE USEFUL INFORMATION ON DEVELOPMENTAL TRENDS, PROJECT MANAGEMENT STRATEGIES, BUSINESS PROCESSES AND SUCCESSFUL CASE STUDIES.

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Doosan and the Doosan logo are registered trademarks of Doosan Corp. in the United States and various other countries around the world. ©2012 Doosan Infracore Construction Equipment America. All rights reserved. | 118C-0

Industry Dirt Go to siteprepmag.com for daily news updates. Studies show polymer product used on jobsites safe for aquatic life New tests have revealed that a polymer product used to manage effluent on construction sites is not toxic to aquatic life. The polymer product, known as polyacrylamide (PAM), reduces the detachment and transport of sediments in runoff by increasing the cohesion of soil particles. PAM also flocculates particles in runoff, forming clumps that drop to the bottom. These clumps can slow the rate of runoff, reducing erosion capacity. Fort Collins, Colo.-based EarthChem uses PAM in its EarthBound gel logs and tablets. Contractors can use these products in a ditch or near active earthmoving operations. In February and March 2011, Smithers Viscient of Wareham, Mass., tested both EarthBound gel logs and tablets for toxicity to daphnids and rainbow trout. Under the tests, the EarthBound products were deemed to be nontoxic to both aquatic species. Currently, the Environmental Protection Agency (EPA) is seeking data to develop a new rule for construction sites of 10 acres or more that would establish effluent limitation guidelines and

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W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2012

standards. This rule would set a national technolog y-ba sed turbidity limit. The EarthBound products ca n help contractors decrease the turTests show the Earthbound gel log is not bidity of effluent harmful to aquatic life. exiting construction sites in the future. —By Don Talend. Talend, of Write Results Inc., West Dundee, Ill., specializes in covering innovation, technology and sustainability.

BUSINESS NEWS The Associated Equipment Distributors ( www.aednet.org ), the Associated Builders and Contractors (www.abc.org ), and the Associated General Contractors of America (www.agc.org ) all praised the U.S. Congress for passing legislation to repeal the imposition of the 3 percent withholding tax on contractors. The tax would have required state and local government entities whose annual expenditures exceed $100 million to withhold 3 percent of all payments made to any individual or company that provides goods or services to the government. Caterpillar (www.caterpillar.com) announced that it plans to open a new manufacturing facility in North America for small track-type tractors and mini-hydraulic excavators. When fully operational, the facility is expected to employ more than 1,000 people. Volvo Construction Equipment’s ( www.volvoce.com ) Bang a lore, Ind ia f ac tor y opened a new excavator assembly line. Plans are in place to ramp up excavator production significantly next year, and this new development will see factory total capacity tripled in 2012. Autodesk (www. Volvo Construction Equipment workers autodesk.com ) acquired build excavators on the new line. Horizontal Systems, a provider of innovative cloud-based BIM collaboration solutions. Autodesk intends to integrate Horizontal Systems solutions into its Autodesk 360 for BIM solution for collaboration, data and lifecycle management.

Plan for a

Successful Demo Project

BY MICHAEL R. TAYLOR

National Demolition Association’s tool can help contractors prepare for the unexpected.

A

s a contractor, you know that a successful demolition project can be a huge undertaking and that it requires a great deal of planning in order to coordinate all the facets of the project. Site clearing, earthmoving, utilities and environmental professionals are often directly or indirectly tied to the demolition process, and on almost every project, some detours and changes will inevitably occur. The National Demolition Association (NDA) has set out to help every stakeholder in the process—real estate developers, architects, and those in related trades—anticipate unforeseen situations and minimize any problems that might occur along the way.

The National Demolition Association’s Demolition Planning Document offers a checklist of activities that must be completed on typical demolition projects. INSET: The NDA recommends that demolition contractors should be prequalified on the quality and types of work they have done in the past, the recommendations of previous clients, their knowledge of environmental regulations, and whether they have the financial backing to bond and insure the job adequately.

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The NDA has issued a Demolition Planning Document that gives stakeholders a checklist of stages or activities that must be completed on typical demolition projects, ranging in scale from small to large. It’s designed to help avoid the negative impact of unanticipated changes on project schedules, costs and liabilities. In addition, the NDA is making specific contract language available to buyers of demolition services so that they can consider including it in their own contracts to make sure they manage all parties’ expectations concerning things like permitting, insurance, health and safety reports, and waste disposal. Copies of the Demolition Planning Document and the Model Demolition Specification language are posted on the NDA website (www. demolitionassociation.com) under “Our Industry.” While it may be impossible to foresee every possible contingency on a project—who will supply the water for dust suppression on site, for example—an experienced demolition contractor should have the skills, equipment and years of experience to make a demolition project proceed smoothly, almost invisibly. It’s no accident that the industry considers a “lengthy” demolition project to be one that lasts only three or four weeks.

demolition project starts or during the bid process. These include: • NESHAP Notifications: This federal regulation, part of the Clean Air Act, requires that written notification of demolition or renovation operations be filed 10 working days prior to commencement of work. Commonly referred to as the “10-day notice,” this requirement is in place to determine if asbestos is present on the site.

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Start with the Contract Since the level of understanding of the demolition process can range from “very little” among many architects and developers to “very knowledgeable” among some general contractors, it might be a good idea to take a look at some of the realities of demolition today. Once a developer or site owner decides to proceed with a partial or complete demolition, he first must decide how he wants to manage the entire process. Does he want to manage everything himself or does he want to outsource it to a general contractor, construction management firm or architect? If the redevelopment will proceed in stages, with the demolition preceding the new construction by a long period of time, the owner may decide to deal directly with a demolition contractor. The NDA recommends that demolition contractors should be prequalified in advance on the quality and types of work they have done in the past, the recommendations of previous clients, their knowledge of environmental regulations, and whether they have the financial backing to bond and insure the job adequately. Once a fully qualified demolition contractor has been selected, contract discussions and development begin. There are some common sources of misunderstanding that should be addressed before a

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PLAN FOR A SUCCESSFUL DEMO PROJECT

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Before the start of every demolition job, the demolition contractor is required by law to take a number of steps to safeguard the health and safety of workers on the jobsite.

• Engineering Survey: Before the start of every demolition job, the demolition contractor is required by law to take a number of steps to safeguard the health and safety of workers on the jobsite. These preparations involve the overall planning of the demolition job, including the methods to be used to bring the structure down, the equipment necessary to do the job, and the measures taken to perform the work safely. • Proposed Use: If the intended user of the site is known, it is helpful if the contractor is aware. The contractor’s expertise and input at this stage of the project can help the project be more successful. • Utility Disconnects: The owner/operator should determine if the demolition contractor will carry the cost and responsibility of the utility disconnects. If not, they should be prepared to provide all disconnect documentation to the contractor. • Reuse of Materials: If materials from the project are to be reused, the contractor should find out this information as early as possible. A schedule of items to be reused should be furnished so that the information can be used when putting together a bid. • Salvage of Materials: Bid and contract documents should be clear as to ownership of scrap/salvage materials. It is usu10

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ally in the owner’s best interest to let the contractor take ownership of these items, but make sure this is clarified. Extent of Underground Demolition: Options that should be clearly defined include removing all underground structures on site, removing underground structures to a certain depth, removing underground structures to a certain extent, leaving slabs and all underground structures, or a combination of all. Responsibility of Temporary Facilities: It should be made clear who has the responsibilities for temporary facilities such as portable restrooms, temporary power and water, site fencing, site security, etc. Hazardous Materials: The owner/operator must determine if they will have environmental remediation completed by the demolition contractor or by a separate entity. Federal and state laws mandate removal and disposal of certain hazardous materials prior to razing a structure. However, most typical landfills will not accept hazardous materials. Permits: It should be made clear which party will secure permits. With an aggressive schedule, it is best if the owners begin the process as early as possible. It’s important to note that multiple permits may be required for activities such as demolition, sidewalk closure, road closure, specific structure heights, dust mitigation plan, airborne release plan, truck route plan, etc. Expected Condition of Site at Completion: The demolition contractor should understand the owner’s expectations of the site condition after demolition. It can be left as is, with a full excavation with existing materials “bowled” to best eliminate any drastic cuts, for example. Alternatively, the contractor can backfill the void left by the structure. Site drainage issues should be addressed. Special Requirements: Prevailing wages, LEED requirements and reporting for Recovery Act work are examples of special requirements that should be addressed. Also included are requirements imposed by regulatory entities such as Coastal Area Management plans, Inland Wetland Commission requirements, storm water management plans, municipal requirements and work near a well head or reservoir that are applicable to the work. Existing Programs: Certain federal, state, private or quasigovernment-sponsored programs require specific reporting. These can include Armstrong ceiling tile recycling, Brownfields, community block grants and others. It is essential that the contractor be made aware of those, since they may have extensive reporting requirements.

Educating the Customer Experienced contractors know that while the issues listed above are the most common areas of potential misunderstanding, they can represent just the tip of the iceberg. That’s why it’s in their

best interest to encourage the buyers of their services to educate themselves about the entire demolition process. As one retail clothing chain likes to say, “An educated consumer is our best customer.” The more buyers know in advance, the less chance there is that problems will arise down the road. That is the very reason the NDA has made the Demolition Planning Document and the Model Demolition Specification contract language available to all.

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The demolition contractor should understand the owner’s expectations of the site condition after demolition.

During the bidding and planning process, demolition contractors need to take buyers through it point by point, making sure they are fully aware of every task and responsibility before work begins. All buyers of demolition services want one thing when it’s all said and done: peace of mind now and into the future, because they know they partnered with a true professional. One way demolition contractors can deliver that sense of security is by making a strong statement to clients that their membership in the NDA attests to their professional competency. With its focus on environmental stewardship, safe work practices, industry education and information sharing, the NDA enables it members to stay on the cutting-edge of what’s happening in the demolition industry. By making that dedication to professionalism clear, contractors can make that work to their advantage in their business development efforts. Michael R. Taylor, CAE , is executive director of the National Demolition Association. He can be reached at info @ demolitiona ssociation .com .

SITEPREP | JANUARY/ FEBRUARY 2012

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Beneath the A 3D GPS system takes the guesswork out of underwater excavation on Ohio River project. ny job is easier when you can see what you’re doing, but that can be tricky when it comes to excavating underwater. This past summer, contractor M. Bowling, of Henderson, Ky., found a way to successfully “see” underwater on a project that required the firm to widen and deepen the upstream approach to the John T. Myers Locks and Dam on the Ohio River near Mt. Vernon, Ind. The U.S. Army Corps of Engineers is preparing the river for a possible extension of one lock chamber from 600 feet to 1,200 feet long to accommodate the long barge tows that ply the river. Working under a $3-plus-million subcontract to Semper TekIntersteel Joint Venture, of Lexington, Ky., the Bowling firm started their portion of the job in June 2011. The project called for excavating 130,000 cubic yards of mud from the river. Two

A

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W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2012

BY DANIEL C. BROWN

large excavating machines—an American 9270 crane and a Caterpillar 385B long-boom excavator, both fitted with 4-cubicyard clamshells—handled the heavy-duty digging work in the river. But the key machine on the project for fine-grading and checking grade on the river bottom was a Case CX240 excavator with a 60-foot boom, rented from JOB Rentals and Sales, of Jeffersonville, Ind.

The Proper Fit Knowing that they needed to be able to “see” underwater, Bowling decided to have the Case excavator fitted with a PowerDigger 3D GPS machine control system from Leica Geosystems, which ABOVE: A Caterpillar excavator with a 4-cubic-yard clamshell performs some of the heavy-duty digging on the river bottom.

Surface JOB Rentals installed on the machine. They also purchased a Leica base station and rover from JOB Rentals. Cory Page, service manager with JOB Rentals and Sales, says the PowerDigger 3D allows the operator to use a full-color, touch screen display in the cab to see where the bucket is digging relative to the design grade of the river bottom. The contractor can configure multiple bucket types and store them in the cradle, which is permanently mounted to the machine. The XC16 display fits into the cradle, giving the contractor the flexibility to move the display from machine to machine without worrying about losing the machine configuration—it all stays in the cradle. This allows the contractor to wire up one, two or 10 machines relatively inexpensively and purchase only a couple of the display panels, which account for most of the investment, Page says. To pinpoint the bucket location, Page says the PowerDigger relies on four sensors and a GPS receiver mounted on the Case excavator. One sensor is located on the bucket itself, one on the dipper stick, another on the boom, and the fourth is on the counterweight.

TOP: Muck is towed ashore in a material barge and off-loaded into articulated dump trucks by a Komatsu PC300 LC excavator. BOTTOM: A Case excavator fitted with a Leica Geosystems PowerDigger 3D GPS system fine-grades and checks grades along the Ohio River bottom.

Signals from the GPS satellites are received by the Leica PowerBox receiver on the excavator and by a Leica PowerBox base station. By using radio signals, the base station sends location corrections to the excavator. A Leica service representative loaded a digital terrain model—the design grades—into the computer on the excavator. Software in the PowerDigger then compares the excavator bucket’s actual position to the digital terrain files in the computer and displays the results on the screen. SITEPREP | JANUARY/ FEBRUARY 2012

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SEEING BENEATH THE SURFACE

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“There’s no guesswork involved,” says Brandon Bowling, the project superintendent. “And there’s no over-excavation—that’s a big advantage to the GPS system.”

Dirty Work Bowling began excavation by cutting back a 1,500-foot-long section of the river bank by about 150 feet. All of that excavation could be handled from land. A Caterpillar 330 excavator, provided by JOB Rentals, and a John Deere 330 loaded earth into two articulated dump trucks, a Volvo A35 and a 40-ton Komatsu. The two trucks hauled the spoil to a nearby basin for disposal. “We dug a pit on the land side of the bank and left a berm in the river to hold the water back,” Brandon Bowling says. Next, the American crane and the big Cat excavator, each working from a barge, dug out the berm and placed the spoil in a material barge. Tugboats pushed the material barge to shore, where a Komatsu PC300 excavator off-loaded the barge into the two articulated trucks. Bowling says the PowerDigger was especially handy in grooming the required 3:1 slope on the river bank. And when it came time to place rip-rap on the bank and in the river, the PowerDigger helped Bowling gauge the exact amount of material needed. The project called for placing 40,000 tons of rip-rap along a 1,500-foot stretch of river bank and on two underwater dikes in the river, which are used for current diversion. “We used the Case excavator with the Leica GPS system to fine grade the river bottom and to give us the exact 3:1 slope we needed on the river bank,” Brandon Bowling says. “The Case worked from its own barge.” Beneficial System Brandon Bowling estimates the PowerDigger system sliced two weeks from the 26-week project schedule—by providing one-time assurance of grades achieved and eliminating wasted movement of work barges from place to place. Another benefit of the PowerDigger is that because it can check final grades, no survey crew was needed to continually measure the newly excavated depth of the river bottom, Brandon Bowling says. That can be a major savings for firms, by avoiding extra contracts for survey crews, because the “as-built” can be completed by using the machine. And it may not always be easy to find crews who own the equipment to accurately map the river bottom, which means that delays could occur while waiting to get into the schedule of an engineering firm. In early October, Brandon Bowling says the firm planned to finish the heavy excavation by the middle of the month. Brandon Bowling says he was impressed with the benefits he saw from using the Leica GPS system. “It’s a good system,” he says. “It’s the first one I’ve ever used ... we need to be sure that when we leave an area that we have completely excavated it—and the Leica GPS gives us that assurance.” Dan Brown is the owner of TechiComm, a communications business based in Des Plaines, Ill. He specializes in construction and engineering topics.

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Coming Clean N.Y. firm turns to skid steers, telehandlers to get down and dirty when restoring contaminated sites. BY JESSICA SIMPSON n the past 40 years, environmental regulations have drastically changed in the United States. With the establishment of the Environmental Protection Agency in 1970, environmental issues have continued to gained momentum as a hot topic for the government and citizens alike. When action needs to be taken to clean up hazardous material, an experienced firm with a reputation in environmental remediation is the key to restoring a site to healthy standards. Sevenson Environmental Services is one U.S. firm with that kind of experience. Based out of Niagara Falls, N.Y., Sevenson specializes in environmental remediation and cleanup of hazardous materials. The company has completed more than 1,300 projects throughout the country.

I

Building a Reputation Sevenson Environmental Services started out as the Albert Elia Building Company in 1917. The company first dabbled in environmental remediation in 1979 when it was selected to clean up the toxic chemicals affecting Love Canal in Niagara Falls, N.Y. That successful project led to other cleanup work and a new name—Sevenson E n v i r o n m e nt a l Services—in 1988.

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Today, Sevenson is one of the nation’s leading environmental cleanup contractors with hundreds of projects completed at a value of more than $3.3 billion. Sevenson’s full-time staff of 300 and its seasonal staff of 600 to 700 employees allow the company to complete projects at sites all across the United States. According to Jim Pease, a heavy equipment superintendent at Sevenson, the company’s most common service is hazardous sediment remediation. Sevenson’s other services include excavation and earthwork, dredging and dewatering, temporary and mobile water treatment systems, chemical treatment, slurry wall and trench construction and facility decontamination and demolition.

Machinery for Heavy-Duty Jobs Working on rough, dirty terrain is the norm for Sevenson. To physically dig out and load contaminated soil, they use excavators and dozers. In order to complete time-sensitive and laborintensive projects under harsh conditions, Sevenson operates a fleet of specialized equipment and vehicles, which includes 14 JCB skid steers and 10 JCB telehandlers, used for several different purposes. “After we get word of a job, we mobilize all of the equipment we need and get it out to the site,” Pease says. “We have JCB equipment on just about every job.” The JCB skid steers are used for material handling, but they also have sweepers, pick-up brooms and fork attachments for cleaning, loading and unloading. “We have used other brands, but we like the quality of this product,” Pease says. One of the things that Pease says makes JCB’s skid steers stand out is their single-arm PowerBoom design, instead of the conventional two-armed approach. The side-mounted arm creates an unobstructed rear view and better visibility, which enhances job safety. The skid steer’s entrance is on the left side, so operators can enter and exit on the opposite side of the loader arm. This design also keeps operators from having to step over attachments that are often sharp or slippery. “The side door and single-arm design of

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the JCB skid steers was a big reason why we purchased these machines,” Pease says. “Visibility from the inside of the cab was a lot better with the JCBs, and we feel the single-boom design has excellent stability and lifting strength.” While skid steers can handle many tasks for Sevenson, there are times when a different type of machine could provide more benefits to the contractor, says Jim Blower, senior product marketing manager for JCB North America. “Telehandlers can be outfitted with a number of attachments, making them able to perform many of the same tasks as a skid steer loader, for example,” Blower says. “However, while skid steers are also maneuverable and useful in crowded spaces, telehandlers have an extendable boom that provides greater reach if you’ll be lifting loads across obstacles or up to a higher level. Some smaller telehandlers can even be used as a compact loader when outfitted with the appropriate bucket attachment.” Blower says JCB telehandlers have side-mounted engines, as well as the side-entry door. Larger machines feature a four-stage boom, allowing the telehandler to lift up to 10,000 pounds without compromising maneuverability and safety. Like the skid steers, the telehandlers also have all-around visibility, Blower adds. “The telehandlers are generally used for loading and unloading materials as they are coming into the jobsite,” Pease explained. “We also use them to move supplies around the site, such as pipes, pumps and water treatment materials. Anything you would normally use a forklift for in a warehouse, we use telehandlers. We’re not working on blacktop or concrete surfaces. We need the telehandlers for the terrain.” Sevenson’s equipment operators use telehandlers when the job involves heavier lifting and faster delivery. One of the main uses for these machines is in the yard at the Niagara Falls headquarters. “We have two telehandlers that run eight to nine hours a day, five to six days a week,” Pease says. “We are constantly

moving things, unloading materials and preparing things to deliver to jobsites. The telescopic handlers also get to spend time out on the cleanup sites as well. At a location in Tennessee, Sevenson used the telehandlers to help remove contamination from a polluted river. Ash from a nearby power plant outside of Knoxville, Tenn., had gotten into the river, causing major environmental hazards. Pease says the telehandlers’ lifting ability, speed and maneuverability on the sometimes marshy ground made them an indispensable element during the remediation process.

Safety First For safety purposes, it’s essential for machine operators to be thoroughly trained. At any given time, up to 400 operators are trained to use Sevenson’s equipment. Each must know how to quickly move from one machine to the next when necessary. According to Pease, JCB machines are easy to operate, a fact that’s beneficial when it comes to training. “Ease of use of the telehandlers and the skid steers saves money, too,” Pease says. “Our operators spend less time fumbling around, trying to remember what switch works what feature. Plus, they’re a lot safer to use. There is less of a chance of operator damage and injury. Pease says without their JCB skid steers and telehandlers, Sevenson wouldn’t have the capability to complete the heavy-duty and time-intensive restoration projects that they specialize in. “We take a lot of pride in the fact that we’ve been able to restore so many sites and make them environmentally safe once again,” Pease says. “It’s our combination of the right people and the right equipment that makes us very good at what we do.” Jessica Simpson is a public relations writer with Swanson Russell marketing communications agency in Lincoln, Neb. She works primarily with clients in the construction and green industries.

One of Sevenson’s primary uses for its JCB telehandlers is in the yard at the Niagara Falls headquarters. They use the machines to move equipment and unload materials. 18

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Equipment Focus E X C AVAT O R S Information for Site Prep’s special focus on excavators has been provided by the respective manufacturers. For more information on their equipment lines, visit the websites listed under each entry.

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BOBCAT’s E26 compact excavator has an operating weight of 5,690 lbs. and a 27-hp diesel engine that is IT4 compliant. The unit’s 0.8 in. of tail overhang allows it to fit in tight surroundings. (www.bobcatadvantage.com)

CASE CONSTRUCTION EQUIPMENT released the CX250C excavator, featuring IT4-certified cooled exhaust gas recirculation technology that burns cleaner while delivering 177 hp. (www.casece.com)

CAT’s 349E hydraulic excavator features a 396 hp Cat C13 ACERT engine that meets IT4 emissions standards. A heavy lift mode increases it's main hydraulic pressure by 9 percent. (www.cat.com)

The DOOSAN DX225LC crawler excavator has an operating weight of 48,722 lbs. with standard boom, arm and 0.92 yd 3 bucket. Bucket breakout force is 33,510 lbs. (www.doosanequipment.com)

HYUNDAI’s Robex 235LCR-9, with 37,280 ft. lbs of digging force, features a heated suspension seat, hands-free phone system, auto AC/heat and computer-aided power optimization. (www.hceamericas.com)

JOH N D E E R E ’ S’s 271 hp 3 5 0 G LC is equipped with a IT4 engine and comes equipped with Deere’s exclusive Powerwise III engine management system. (www.deere.com)

KOMATSU AMERICA’s PC290LC-10 hydraulic excavator is IT4-certified and equipped with the latest KOMTRAX technology. At 68,000 lbs. with 196 hp, it feature s i mp rove d hydr auli c ef f i ci e ncy. (www.komatsuamerica.com)

LIEBHERR’s R 900 C Litronic is a 44,000lb. crawler excavator utilizing the Liebherr Synchron-Comfort-System (LSC) featuring electronic limit load regulation ensuring maximum working performance and a 127-hp Liebherr diesel engine. (www.liebherr.com)

The LINK-BELT 36.3-ton 350 X3 full-sized excavator has been redesigned with an allnew ROPS certified cab and interior, Interim Tier 4A engine technology and up to 10 percent better fuel efficiency. (www.lbxco.com)

W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2012

LIUGONG’s new 9 0 6C IT4 compact excavator packs 45 net hp into an urbansize digger. The 906C offers a max digging depth of 12 ft. 8 in. with a reach of 19 ft. 8 in. (www.liugong.com)

The SANY SY215 excavator offers a redesigned cab with more operator comfort, increased visibility and a full color display. It comes with Kawasaki’s Positive Flow Hydraulic System. (www.sanyamerica.com)

The TAKEUCHI TB 1140 will tackle your job with its larger design to help you get the most for your money with a compact machine that is comfortable and reliable. (www.takeuchi-us.com)

The TEREX TC48 compact crawler excavator offers two-sided entry for easy access. It weighs 10,920 lbs. with a maximum dig depth of 12 ft. 10 in. and a maximum reach of 20 ft. 4 in. (www.terex.com/en/)

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YANMAR'S ViO80 is an 8-ton excavator with a 54.6 hp Yanmar 4TNV98 engine. It offers a high-efficiency hydraulic system, and 18 percent improved fuel consumption. (www.yanmar.com)

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Attachment Focus B U C K E T/ T H U M B AT TA C H M E N T S Information for Site Prep’s special attachment focus on bucket/thumb attachments has been provided by the respective manufacturers. For more specs on their attachments, visit the websites listed under each entry.

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1. AIM HD60 Excavator Buckets feature durable construction highlighted by AR400 steel cutting edges and side cutters. Other highlights include thick horizontal wear straps, full-curve side wear straps and lifting D-rings. Optional bolt-on side cutters and extra pins are also available. (www.aimattachments.com ) 2. CP’s Heavy- & Severe-Duty Buckets dig and move abrasive materials with mini-excavators and excavators up to 200,000-lbs. They have a circular torque tube design and an abrasion-resistant “double-bottom” up to ¾ in. thick to increase overall strength. (www.paladinconstructiongroup.com )

3 4

3. The 12-in wide CRAIG Universal Padmount Thumb welds on to a wide variety of machines to help with material handling. It requires the excavator to have an auxiliary hydraulic function and stick at least 9 ft. 10 in. in length. (www.craigattachments.com ) 4. KENCO's Hardrock Thumb is easily fitted on any excavator and folds out of the way without removing the stay arm. Four serrated tines provide gripping ability. It’s available in manual or hydraulic models. (www.kenco.com )

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5. LEADING EDGE ATTACHMENTS introduced the High-Cap Multi-Ripper bucket with a staggered shank on an arc design. It rips the sides and bottom of the trench flat with no depth limitations and delivers close to eight times the force of a standard excavator bucket. (www.digrock.com ) 6. LEMAC Bucket Clamps have a curved tine design that provides greater capacity and promotes better picking ability and load retention. The double-ear design prevents damage to the main pin. They’re available in hydraulic and mechanical versions. (www.lemaconline.com ) 7. The PEMBERTON Twist-O-Wrist Bucket eases the work of ditching, sloping, grading, back filling and land clearing operations. The bucket is available in widths from 60 in. to 90 in. with capacity from 0.75 to 3.0 yds3. (www.pembertoninc.com ) 8 . P S M ’s M a ximum Rot ate Hydr auli c Thumb d e s i g n allows the thumb to follow the bucket through full rotation, giving operators the ability to reach, lift and position. Work in close or at full reach while maintaining full thumb contact. (www.psmcorp.com )

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Komatsu PC390LC-10 Hydraulic Excavator Komatsu America Corp. recently introduced its new PC390LC-10 hydraulic excavator, featuring an increased operating weight at 89,072 lbs., and increased engine power at 257 hp. Read on for more details about this new excavator model. Q. What’s special or new about the PC390LC-10? A. Built using Tier 3 technology, the Komatsu SAA6D114E-5 Interim Tier 4 certified engine has a larger displacement of 8.9 liters and provides increased horsepower while lowering fuel consumption. This engine uses an advanced electronic control system to manage air flow rate, fuel injection, combustion parameters and aftertreatment functions to optimize performance, reduce emissions and provide advanced diagnostic capability. Komatsu has also developed a hydraulically actuated Variable Geometry Turbocharger (KVGT) and Exhaust Gas Recirculation (EGR) valve, resulting in better precision and air management, as well as longer component life. The Komatsu Diesel Particulate Filter (KDPF) has an integrated design to keep the operator aware of its status. All Komatsu Interim Tier 4 machines come standard with Komatsu CARE, which includes complimentary, factory-scheduled maintenance for three years or 2,000 hours, whichever comes first. Q. What are the features of the excavator? A. The PC390LC-10 features a large undercarriage design that uses the same components as the larger PC450LC-8. The over side lift capacity increases up to 20 percent when compared to the PC360LC-10, providing improved lateral stability in applications that require long arms or heavy lifting at maximum reach. The robust undercarriage design also features larger final drives that provide about 13 percent more drawbar pull than the PC360LC-10. A highly efficient hydraulic system has helped reduce fuel consumption by up to 10 percent when compared to the previous model. This model features variable speed matching technology, which allows the engine speed to adjust based on the hydraulic pump output for both light and heavy-duty applications. The new cab provides a comfortable and quiet work environment. The high-back, fully adjustable seat uses air suspension and is heated for improved comfort. A new high resolution 7-in. LCD monitor features improved working modes that allow the operator to match machine performance to the application. The PC390LC-10 is equipped with the latest KOMTRAX technology, which sends machine operating information to a secure website utilizing wireless technology. Data such as operating hours, location, cautions and maintenance alerts are relayed to the web application for analysis. Q. What benefits can customers expect from the PC390LC-10? A. With the PC390LC-10, customers can expect to have the same reliability and productivity as its predecessor, but with improved efficiency, lower fuel consumption, a more comfortable operator environment, and convenient serviceability. With the larger size class undercarriage, the PC390LC-10 will also provide exceptional over side stability, especially in long arm applications or when using heavy attachments.

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W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2011

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Virtual Stringline BY HARRY O. WARD, PE

Exploring Subsurface Utility Mapping n almost any project occurring in an urban or suburban area, we need to be aware of the utilities beneath the site. We must know where the water trunk lines are, where the sanitary tap-ins are located, and where the power and gas lines are. We need this information so we can hook into them for the project and avoid them when a backhoe is digging a trench nearby. If we don’t locate the utilities beforehand, the results can be damaging and costly. A few years ago Site Prep published an article on dowsing, the art of finding water, conduits, electrical lines and voids beneath the surface. Almost all respondents affirmatively stated that this “water witching” does indeed work, although none could explain why. Many organizations routinely use dowsing to locate utilities and other underground features and have for hundreds of years. But more modern methods for utility locating do exist, of course, and I want to discuss some of these methods in this column.

I

Collecting Data and Related Research In the case of identifying subsurface utilities for low-level efforts—those where you want to be aware that a utility exists in the vicinity—contractors should begin w it h basic data colle c t ion a nd research. They should check with landowners and agencies that are responsible for the area, including the loca l water a u t h o r it y, During an above-ground location, aerial mappers will fly county propthe site, photogrammetrists digitize the data into a CAD erty records, system, and surveyors supplement it with field verification. 26

W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2012

Call 811 and other organizations that maintain records of underground features. This level of identification may not provide highly accurate data; rather, it provides an understanding of the utility’s purpose, the density of utilities and an estimated location of where they are. But if you miss a document or perhaps if the utility was never recorded, then some utilities can be overlooked completely. For example, when I bought my house 20 years ago in a rural setting, I chose to have the septic system maintained. When the contractor came out, he asked where the tank was and where the leach lines were. Having just acquired the land, I didn’t know, and the county property records dating to 1945 for my house did not show them either. Another example occurred when an early GIS system for a major U.S. city. We compiled all of the data we could find and entered it into the database. After the system went into production, contractors’ feedback indicated that some of the utilities were a street width away from where they were recorded. This proved that a more accurate method was required to better identify locations.

Getting a Better Look If you need more accuracy, an above-ground survey can be conducted. Aerial mappers will fly the site, photogrammetrists then digitize the data into a CAD system, and surveyors supplement it with field verification. Above-ground utilities, such as overhead lines, manholes, pedestals and more, can be extracted from the orthophotos. Linework connections are surveyed in the field to ensure that the manholes or other features are correctly linked together. Simultaneously, manhole inverts, pipe sizes and other needed data may be captured and recorded so that the utility is actually in 3D. In fact, many surveyors are collecting GIS attribute data as part of their routine surveys now. For precisely measuring underground, different tools are needed. These tools include: • Metal Detectors—These devices use magnetic field measurements to identify underground utilities, and they can trace lines and compute depths as well. One

joints and leak locations or sounds introduced into the water of the drawbacks of this device is that it can produce false main using a transducer. This method may have good identisignals from wet ground foliage, pavement materials or minfication results, but can be inaccurate. eralized ground soils, and some will identify only ferro• Ground Penetrating Radar (GPR)—GPR is a method that magnetic metals like iron, steel, or other magnets. The size uses radar pulses to image the subsurface. It uses electromagof the coil in the metal detector helps determine how deep netic radiation in the microwave band of the radio spectrum, the equipment can read. These magnetometers are highly and detects reflected signals from subsurface features. It accurate instruments that measure local magnetic fields quite produces a geologic cross-section of the soil based on the precisely. They operate using proton-based fluids surrounded by an electric coil. Once a current is applied to the coil, it generates a field of magnetism that temporarily polarizes the protons. When the current is terminated, the protons realign along the line of the earth’s magnetic field. The proton movement creates a measurable electric current in the coil and reads a S ON ATI frequency proportional to the magnetic T S AL intensity. Metal detectors can only read TOT Y T ALI a few feet beneath the surface under -QU H most ambient conditions. HIG FOR • Gradiometers—These devices measure magnetic field gradients instead of total field strength. Magnetic gradients (changes) may provide a better definition of shallow buried features, such as below ground wells, tanks or buried metal debris, because the depth of magnetic surveys is unaffected by elevated electrical ground conductivities. This makes them more useful on sites with other conductive materials, such as salt-infused groundwater, highly conductive clays or other contaminates. • New Technologies —A new tool that has appeared recently is Optimal Ranging’s Spar utility locator. Its FieldSens technology computes the effects of ground conductivity and field distortions in real time and combines it with GPS to map utilities in 3D. It works using the alternating current and its magnetic field to locate the feature. It assumes that a signal can be located on the item, and if one doesn’t .com exist, the technician can often induce a ions SE stat O l a t P into UR signal from an exterior source. gow LL -P ATION A , • Acoustic Technologies —AcousTY ST ULI AL T QA O tic location methods usually apply H 2T HIG -20 to waterlines or lines with a flow in S K T them. A sensitive acoustic receiver reads background sounds of water flowing at

HE T G N I R K E I A R BRE E B A R C I R P

SITEPREP | JANUARY/ FEBRUARY 2012

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electrical properties of the ground. How deep the signal will penetrate the soil is based on the conductivity of the soil— the more clay-based soils, the less depth you can anticipate. This equipment is fairly heavy and may be mounted on a carriage so it can be pushed anywhere on site. GPR is effective in locating underground tanks and utilities, delineating pits and trenches that contain metallic and nonmetallic debris, identifying previously excavated or backfilled areas, mapping rebar or voids in the subsurface, measuring pavement depths and more. It is good for detecting objects, changes in material, voids and cracks.

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Going Deeper There are times when you may need to physically locate the utilities. This task is typically accomplished with heavy-duty mobile machines that physically remove the earth around the utility so that it can be seen, touched, measured and recorded very accurately. Because the utility is physically exposed, developing test pits is the most accurate and reliable method we have to ensure that a utility actually does reside exactly where it is recorded. In order to physically locate the utilities, nondestructive excavating equipment is employed at critical junctures to establish the precise 2D and 3D positions of underground utilities. Data collected includes the type of utility, pipe sizes, buried condition, pipe material, soil contamination and paving thicknesses. By knowing exactly where a utility is positioned, the designer or contractor can make small adjustments in the project to avoid relocating these existing utilities. This method can locate utilities and other features as deep as 30 feet below ground. For this method, contractors use machines to excavate test holes

or test pits. This can be done using air and hydro vacuum excavators. Vacuum excavators are available in truck-mounted form, as well as in portable units designed for areas that are less accessible due to height, width or weight concerns. By reviewing the technologies discussed above, you can see there are several choices available for identifying utilities below ground. For simple situations, dowsing may work fine, but more sophisticated equipment may be needed as other information is identified that is required. For most applications metal detectors, gradiometers, acoustics and GPR may be satisfactory. For an absolutely positive and flawless determination, a test pit must be developed where the utility can be physically exposed. If you use one or more of these technologies, chances are good that you may never hit a gas or power line again.

Harry O. Ward, PE, is president of Harken-Reidar Inc. He has been a member of the engineering faculty at George Mason University since 1997 and was named “Outstanding Adjunct Professor” for GMU in 2010. He can be reached at hward@ harken-reidar.com or [email protected].

The Spar utility locator by Optimal Ranging uses FieldSens technology to compute the effects of ground conductivity and field distortions in real time and combines it with GPS to map utilities in 3D.

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Case Study Seeking an Underground View hen Hanover Engineering began work on a 20-mile long sewer project estimated at $18 million, they knew it wouldn’t be easy, especially due to the subsurface rock on the trench lines. Typically, analyzing this kind of rock requires boring test holes approximately every 30 feet—a tedious and time-intensive approach. Using this traditional method, it would have meant that the team needed to bore more than 3,500 holes for analysis as part of the project in Ephrata, Pa. When a project grant restricted the timeline for the East Coast firm, they knew they needed to search for a faster, more modern method of tackling the work. “I felt we needed to find some type of system, some type of equipment, that could survey so we could try to analyze the amount of rock on these trench lines,” says Matthew Epler, engineer-in-training with Hanover’s Ephrata, Pa., office.

W

The Seeker transmits energy pulses through various types of surfaces, including clay, soil, concrete and brick.

face penetrating radar system to do the work for them and display the results on the touch screen panel. According to Ron LaBarca, president of US Radar, the Seeker transmits energy pulses through various types of surfaces, including clay, soil, concrete and brick. Whether the depth range on the project is known or not, the Seeker produces images of what’s below and can tailor the picture based on a user’s set parameters, such as soil settings, algorithms and color palette. Everything is displayed on a large, bright screen that’s easily visible even in daylight, LaBarca says. Relying on Radar The firm’s research turned up US Radar, and Hanover “It’s like looking at an X-ray,” Epler says. “The more you Engineering tested and purchased the company’s wheel- look, the more you see.” mounted Seeker SPR (subsurface penetrating radar) with The 500-megahertz antenna that Hanover chose is a 500-megahertz antenna. Crews simply push the Seeker among the most popular of the frequency options US over the surface of the trench area, relying on its subsur- Radar offers, LaBarca says. The full range extends from 100- to 2,000-megahertz. The Seeker works best at 100 megahertz for detecting sizable objects, such as bedrock and large pipes at depths of up to 100 feet. On the opposite end, the 2,000-megahertz antenna provides high-resolution details at depths to 18 inches, displaying everything from fine wire to cracks in concrete. The 500-megahertz antenna provides good versatility, LaBarca says, with up to 14 feet of detection for pipes, cables and soil disturbances. “We have survey data on 20 miles of pipe,” Epler says. “I have all these scans and all these pictures (from the Seeker SPR).” According to LaBarca, more than 50,000 lineal feet of data can be collected and stored in the Seeker before being transferred via USB port to a Windows-based operating system that processes and filters the information. Though it might not be typical to think of a data Hanover uses the Seeker SPR to analyze the subsurface rock, instead of boring holes tool as “rugged,” that is the case with the Seeker every 30 feet. 30

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SPR, LaBarca says. All of the machine’s cables and connections have been constructed with tough military-specification, waterproof connectors. Two sturdy wheels scientifically balance the equipment for stability, he says, which also minimizes the pushing effort and, in conjunction, operator fatigue. Additionally, an optional rough terrain attachment with two additional tires makes the machine ready to traverse almost any surface condition. The Seeker also works silently by operating off of a battery that provides four to six hours of continuous run time.

GPS Option Available Epler estimates the Seeker cut the time needed to survey the area by 70 percent. Plus, it reduced concerns about impacting the environment that they could have faced on a project that requires thousands of bore holes. Epler says the crew will just do a few bore holes to confirm the data the Seeker provided. “We’ll take this data we received from the US Radar equipment, and we can take it to be very selective on the boring,” Epler says. Beyond the sewer pipe project, Hanover anticipates its Seeker SPR will be beneficial in other engineering applications, from finding sinkholes to locating storm pipes for clients. It has already been used to locate water lines and water services, as well as explore tight spaces to avoid conflicts between existing utilities and proposed new utilities. Hanover is now looking into adding a GPS option with the Seeker, which can be attached to an external GPS device for additional data collection. “(The GPS option is) one we’re very interested in and one we’d get a good amount of use from,” Epler says. “It can tell us exactly where we’re at, where the scans start and stop. This would be a time-saving feature and just help make the process more precise.” Overall, Epler says the Seeker provides an accurate, real-time picture of what lies beneath—whether that’s wires, bedrock or large pipes—all without disturbing the surface or consuming valuable time like other methods. “I would honestly go as far as saying this equipment is a survey tool,” Epler says. “Obviously it’s not the answer to everything, as no one piece of equipment is, but it’s a very good survey tool to have in the toolbox.”

COMPANY: Hanover Engineering LOCATION: Ephrata, Pa. PROJECT: Analyzing subsurface rock on 20-mile sewer project EQUIPMENT USED: US Radar Seeker SPR SITEPREP | JANUARY/ FEBRUARY 2012

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Product Roundup For more products, go to siteprepmag.com.

CATERPILLAR released the 120M2 and 12M2 motor graders, along with their allwheel-drive counterparts. The models are equipped with low-emitting, fuel-efficient Cat VHP engines with ACERT technology. The M Series 2 models also feature the new Cat Grade Control Cross Slope system, a complete machine control and guidance system. (www.cat.com) Also, CATERPILLAR released new features for the D9T, including automatic climate control; the new Dynamic Inclination Monitor that provides readouts of the tractor’s pitch angle and side-to-side slope; the Enhanced Auto Shift (EAS) system; and the new “OK-to-start” system that checks powertrain, engine coolant and engine oil systems. (www.cat.com) JOHN DEERE added the 9R/9RT Scraper Special Series tractors to its line, including three new track models. The line is equipped with fuel-efficient, high-torque IT4 PowerTech PSX engines, featuring

a max of 560 hp. The tractors come with the Durabuilt 5500 Series Scraper rubber track in a 30-in. width. They also have the AirCushion suspension system and all-new CommandView II Cab. (www.johndeere.com) LEICA GEOSYSTEMS introduced the Cyclone v7.3.2 that supports the recently released ASTM E57 standard for 3D imaging data exchange. Cyclone can now export and import point cloud and associated image data to the E57 exchange format files for use by other E57 compliant software applications. (www.leicageosystems.com) TOPCON and DYNAROAD OY released DynaRoad v5.2 construction scheduling and planning software. Version 5.2 has improved planning tools with a map view for visualizing project progress week-by-week. It also includes industry specific tools, added interactive planning tutorials and sample projects. (www.topconpositioning.com)

Can’t Trust Data from the Field? Are You Really Managing Your Fleet by Paper? If you’re fed up, or ready to step up to the next level of technology, check out:

oemdd.com DATA DELIVERY A Division of OEM Controls, Inc.

• Hours • Location • Fuel • Consumables • Mileage • Engine Work/Idle • Travel Logs • Data Logs

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Ad Index

Classifieds

Advertiser

Web Address

Phone

Page

Tired of welding a plate across your teeth?

Bobcat Company . . . . . . . . . . . . . . . www.bobcat.com/value1. . . . . . (877) 505-3580. . . . . 15

Then you need to try a Hall’s Grade Blade, goes on in less than 60 seconds and off in 5. Available for all mini-excavators, all backhoes and large excavators. Convert your toothed bucket to toothless in 60 sec. Go to www.gradeblade.com or call 1-319-470-3033 for free DVD and literature.

Case Construction Equipment. . . . . . . www.casece.com . . . . . . . . . (866) 54CASE6 . . . IFC Caterpillar/AccuGrade . . . . . . . . . .www.cat.com/accugrade . . . . . . . . . . . . . . . . . . . . . . . . . 33 Doosan . . . . . . . . . . . . . . . . . . . . . www.doosanequipment.com . . . . .(877) 613-7970 . . . . . . 5 Gowin . . . . . . . . . . . . . . . . . . . . . . . www.gowintotalstations.com . . . . . . . . . . . . . . . . . . . . . . . . 27 HitchDoc . . . . . . . . . . . . . . . . . . . . . . . . www.dualdozer.com. . . . . . . . (800) 446-8222 . . . . 29 HKX Hydraulics . . . . . . . . . . . . . . . . . . . . . www.hkx.com . . . . . . . . . . (800) 493-5487 . . . . 21

,I\RXQHHGWRPHDVXUH <281((')$670($685(

)DVW0HDVXUHLVDVPDOOUHOLDEOHDFFXUDWH HDV\WRXVH'LVWDQFH 0HDVXULQJ'HYLFHWKDWPRXQWVRQDQ\WKLQJWKDWUROOV

ZZZ)DVW0HDVXUHFRP

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Humboldt . . . . . . . . . . . . . . . . . . . . . www.humboldtmfg.com . . . . . . (800) 544-7220. . . . . 28 InSite SiteWork . . . . . . . . . . . . . . . . . www.insitesoftware.com . . . . . . .(877) 746-7483 . . . . . . 6 John Deere . . . . . . . . . . . . . . . . . . . . . . www.johndeere.com . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Leading Edge Attachments . . . . . . . . . www.digrock.com. . . . . . . . . (866) 928-5800 . . . . 14 Liebherr . . . . . . . . . . . . . . . . . . . . . . . . . . . www.liebherr.us . . . . . . . . . .(757) 245-5251 . . . . . 19

ECONOMICAL

Mattracks . . . . . . . . . . . . . . . . . . . . . . . . www.mattracks.com. . . . . . . . .(218) 436-7000 . . . . . 11

SEDIMENT WATTLE

Morbark . . . . . . . . . . . . . . . . . . . . . . . . . .www.morbark.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SURVIVES TIRES & TRACKS

Nikon . . . . . . . . . . . . . . . . . . . . . . . . www.nikonpositioning.com . . . . . . . . . . . . . . . . . . . . . . . . BC

20 TIMES LESS SOIL LOSS THAN STRAW WATTLES

NUCA 2012. . . . . . . . . . . . . . . . . . . . . . . . www.nuca.com . . . . . . . . . . (703) 358-9300 . . . . 34

www.gatorguard.com

877-428-6763

Ocala Instruments . . . . . . . . . . . . .www.ocalainstruments.com . . . . (800) 344-4788 . . . . 11 OEM Data Delivery. . . . . . . . . . . . . . . . . www.oemdd.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Positioning Solutions Co. . . . . . . . . . . . . www.1psc.com . . . . . . . . . . (800) 343-7726. . . 23 ra

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To Place a Classified Ad

RWF Industries . . . . . . . . . . . . . . . . . . . . www.rwfbron.com . . . . . . . . .(800)263-1060 . . . . . 28

Contact Bonnie Bomhack: 847.768.9533 [email protected]

Topcon . . . . . . . . . . . . . . . . . . . . . www.topconpositioning.com . . . . (800) 443-4567 . . . . 25

W W W.SITEPREPMAG.COM | JANUARY/ FEBRUARY 2012

Trimble . . . . . . . . . . . . . . . . . . . . . . www.trimble-productivity.com . . . .(800) 361-1249 . . . . . . 7 Vulcan On-Board Scales . . . . . . . . .www.vulcanscales.com . . . . . . (800) 237-0022. . . . . 14 ri = regional insert. ra = regional ad. ni = national insert. Regional ads do not appear in all versions of the magazine.

Alternate Routes Spice Up Love Life With Dirt

Robert and Pam Luersen of Bradenton, Fla., enjoy People at Play: The Heavy Equipment Playground.

Just in time for Valentine’s Day, People at Play: The Heavy Equipment Playground is offering a unique treat for your special someone. The “Get Dirt-y Couples Package” includes a dozen red roses, a box of fine chocolates … and time for both lovebirds to operate a CAT 312 steel track excavator. The package includes a commemorative hard hat for both participants—with a bright pink one for the ladies and a blue or white one for the men—as well as a 5 inch by 7 inch photo taken in front of the excavator with your significant other. Located 50 miles from Tampa, Fla., People at Play: The Heavy Equipment Experience allows anyone to join the crew and operate a bulldozer, excavator and/or skid steer. Users can learn how to run heavy equipment in a construction-themed environment with challenge courses and games. The Get Dirt-y package is available Feb. 1 until Feb. 28. For more information, go to www.pplatplay.com.

SITEPREP | JANUARY/ FEBRUARY 2012

35

Rugged. Compact. Accurate.

NIKON® NIVO™ SERIES

LONG RANGE REFLECTORLESS

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LASER POINTER

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BLUETOOTH

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LASER PLUMMET

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1”, 2”, 3” AND 5”

The Nikon Nivo Series offers everything you demand in a compact size. Legendary Nikon optics. World-class field software trusted to be tough enough to excel in any environment. The reliability to provide high data integrity on long days. And performance for fast solutions to improve productivity. To learn more, visit our website www.nikonpositioning.com/NivoSeries or contact your local dealer.

NIKON NIVO SERIES

©2011 Trimble Navigation, LTD. All rights reserved. Nikon is a registered trademark of Nikon.

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WINDOWS® CE