drainage pipe. ADS civil engineer Tom Rueschhoff learned about
Transcription
drainage pipe. ADS civil engineer Tom Rueschhoff learned about
drainage pipe. ADS civil engineer Tom Rueschhoff launched an intense lobbying and educational effort. learned about the bill and fought to get it changed. After becoming aware of the detrimental affects the After hearing what Rueschhoff had uncovered, legislation would have on the taxpayers, the senate MDOT, ADS, and other HDPE pipe producers took the transportation conference committee approved the bill lead, testifying before a house subcommittee on the with revised language that states: “If the department Legal Matters CONCRETE PIPE MANUFACTURERS PUSH FOR RESTRICTIVE LEGISLATION IN MICHIGAN When the marketplace chooses a new product or effect of the proposed legislation. ADS demonstrat- service, forcing another to lose, the manufacturer of ed how passing such a bill could potentially cost the that entrenched product or service resorts to tactics to Michigan taxpayers$4 to $6 million a year as a protect its investment. Such is the case with the con- result of the lack of fair competition, and DOT engi- crete pipe industry. It tried to slip wording through neers would lose their right to specify requirements the Michigan legislature that would have stopped the for projects. In the past, lack of ASTM standards for Michigan Department of Transportation from using large diameter HDPE pipe never caused a problem HDPE pipe. because state DOTs approve the use of the pipe Section 606 of Senate bill 372 required any manufactured pipe used should “meet the standards established by the American Society for Testing and Materials (ASTM),” and seemed harmless to most Michigan senators. But the ASTM committee (F17) through standards set by its own professional organization, the American Association of State Highway and Transportation Officials (AASHTO). This makes perfect sense. The members are, after all, the ones using pipe on a daily basis. S TAT E C AP I T OL BU I L D I NG , L A N S I NG , M I CH I GA N which develops standards for plastic pipe, is comprised After a month of meetings with subcommittee mem- uses manufactured pipe for road construction primarily of manufacturers and users of competitive bers, ADS was optimistic the bill would be voted drainage, the department shall require that pipe used pipe products. As a result, development of new stan- down. Just before the full house voted on the under certain load bearing conditions beneath the dards for dual wall pipe have been thwarted. If Senate revised bill, a state representative amended it to roadway meet the standards established by the bill 372 had become law, it would have prevented the include the original language proposed by the con- American Society for Testing and Materials (ASTM) or Michigan Department of Transportation (MDOT) from crete pipe industry. Having passed the house vote, the American Association of State Highway and using HDPE, a material that was already approved, and the legislation moved onto the senate. Transportation Officials (AASHTO).” would have been forced to use concrete pipe, even in If legislators had been properly informed that the ADS, other HDPE manufacturers, and departments of applications in which it determined HDPE pipe to be a wording would create a monopoly for the concrete transportation are investigating similar misleading better alternative. Concrete pipe manufacturers would pipe industry, they would likely not pass it. As a tactics around the country that nearly gave the have established exclusive ownership of highway result, ADS, other HDPE manufacturers, and MDOT concrete pipe industry a monopoly in Michigan. successfully used, by DOT’s across the nation. MDOT 2 PRE-SORTED STANDARD U.S. POSTAGE PAID COLUMBUS, OHIO PERMIT NO. 1213 ADVANCED DRAINAGE SYSTEMS INC. 3300 RIVERSIDE DRIVE COLUMBUS, OHIO 43221 800/821-6710 VISIT OUR WEB SITE: www.ads-pipe.com T H E M O S T A D V A N C E D N A M E I N D R A I N A G E S Y S T E M S® ™ ADS is making it easy to learn how to install N-12® drainage pipe. The first online interactive installation training guide can be found at www.ads-pipe.com. Color photos, animated graphics, video, and easy-toread tables and charts assist and enhance overall comprehension. Online Training Tool The key to any successful drainage pipe system is successful installation.This guide allows you to learn proper installation techniques at any given time. 6 The online guide walks contractors, engineers, installers, and inspectors through every phase from pre-construction planning through post-construction inspection. At the end of each chapter, the user has the opportunity to test comprehension. If completely successful, the individual receives a document confirming completion of this training tool. For those who do not have internet access, a CD-ROM version of this training tool is available through any ADS sales representative. “The number one concern we hear is that plastic pipe is installation-sensitive,” said Pat Collings, P.E., ADS manager of applications engineering. “That just isn’t true. The key to any successful drainage pipe system is successful installation. This guide allows users to receive proper installation training at any given time.” Te c h l i n e THE LATEST INFORMATION IN ADVANCED DRAINAGE TECHNOLOGY ADS News Volume VII, Issue One Legal Matters 2 Proving Ground 3 Protecting the Environment 4 After the Storm 5 Branching Out 5 Online Training Tool 6 Heavy Weight ADS PIPE CHOSEN FOR NEW DE-ICING PADS IN ATLANTA It’s the perfect solution to the problem of what to do with storm water and de-icing runoff at Hartsfield Atlanta International Airport: ADS N-12 ProLink WT® high density polyethylene (HDPE) pipe. The pipe is buried underground and will be used as a containment system for all runoff from the airport’s first de-icing facility. It was chosen for its ability to handle chemicals and the weight of a jumbo jet at a 25-foot burial depth. The inert properties of HDPE pipe allow it to handle strong solutions ranging in pH from 1.5 to 14. The de-icing solution primarily consists of ethylene glycol that will flow in to one of the four separate glycol retention/detention systems. handle a Boeing 747 jumbo jet 25 feet above ground, which weighs nearly 400,000 pounds. Each system, built by SDL Environmental of Sharpsburg, Georgia and Atlanta-based Aviation Constructors, will be used to capture de-icing fluid and storm water runoff. The systems are a threepronged layout of 48-inch diameter pipe sealed on one end. That watertight fluid holding pen slowly disperses the run-off into the 15-inch diameter ADS N-12 pipe attached to the open end of the rows, sending it to a sewer and drainage system. “N-12 WT pipe performs to the ASTM laboratory watertight standard of D 3212 at 10.8 psi and has its own integrated bell and As for its strength, each system, interacting spigot ends,” says Tony Radoszewski, direcwith the soil compacted around it, will tor of marketing for ADS. “As such, joining Typical Pipe Performance (LB/SQ FT) 12000 95% SOIL DENSITY 90% 100 85% 90 10000 80 70 8000 60 80% 50 6000 40 75% 4000 30 20 2000 INITIAL EFFECT OF RING STIFFNESS 0 0 5 10 RING DEPLETION Y/D (%) = Source: Utah State University 15 75% SOIL DENSITY PLOT OF VERTICAL SOIL STRAIN 20 « EXCEPT WHERE NOTED 10 « 0 25 I N S TA L L ATIO N OF 48 -IN CH DIAMETER HDPE PIPE AT HARTSFIELD AT L A N TA I N T E R N ATIONAL AIRP ORT the sections does not require a separate coupler for a watertight connection. The integrated design also makes it easy for the crew to slip together the pipe sections.” The pipe’s strength allows it to be buried 25 feet below the de-icing pad, covered with No. 57 stone, then 3,000-4,000 pounds of dirt. At that burial depth, with proper compaction, it effectively handles the weight of the aircraft above it. Proven to be the right pipe for the job, it’s also the right price. SDL Environmental President Thomas Boynton estimates that by using ADS pipe instead of ductile iron or reinforced concrete, the cost of the facility was cut by a third to a half. He also estimates that his crew saved at least a week of work. It took three weeks to complete the de-icing pad with HDPE pipe and it would have taken four to five weeks to install ductile iron or concrete, according to Boynton. “ADS N-12 pipe is lighter than ductile iron or concrete and easy to assemble. With it, we can build the retention system and begin covering it with backfill in one day,” said Boynton. Te c h l i n e Proving Ground N-12® PIPE IN WISCONSIN IS STRONG AND STEADY AFTER 11 YEARS UNDERGROUND The Wisconsin Department of Transportation conducted a video inspection and found the pipe and its joints to be in great shape, with no defects. After spending 11 years under heavy traffic, ADS N-12® HDPE pipe in Door County, Wisconsin has greatly exceeded expectations. The installation was a test run when the product was first on the market. N-12 pipe had never before been used in this type of application, but the Wisconsin Department of Transportation had enough confidence in the product to try it. With 40% more traffic than expected using the road on a daily basis, the pipe is performing ideally. More than 1,600 feet of N-12 pipe was installed in 1988 as a storm sewer in Fish Creek under State Highway 42. It performed so well, the DOT forgot it was there. It has since found out N-12 pipe was a sound decision. Last year, the Wisconsin Department of Transportation conducted a video inspection and found the pipe and its joints to be in great shape, with no defects. That is a true testament to the strength and durability of the pipe, buried a foot below the surface of the road with an average of 6,300 vehicles using that route last year alone. The current state maximum for HDPE pipe at that burial depth is 4,500 vehicles per day. “We knew we would only be able to bury the pipe a foot under the road and the N-12 pipe was the strongest choice 3 for that application,” says Mike Leitzke, Wisconsin DOT project manager. “For other materials, we would need at least a foot and a half. We chose to use N-12 pipe mainly because of its strength, but also because it’s flexible and lightweight. The pipe had to come down the bluff and go under the road and we knew concrete would crack. The N-12 pipe was flexible enough to hug the land and bend where we needed it to bend. Plus, the project was in a sensitive area and we didn’t want to have to use cranes or backhoes that are needed for concrete pipe. Two or three guys could easily move the lengths of N-12 pipe around without disturbing the bluff.” Because the pipe is strong and installed properly, at its minimum burial depth it can handle the load of the extra traffic above it and additional force from the rolling motion of the vehicle. The durability of N-12 pipe is also apparent in this case. Abrasive materials are passing through the pipe without any damage to it. This helps prove the point made in test after test that it takes longer for abrasive material to erode HDPE pipe than concrete pipe. “The key characteristic of Door County is that the people there are very concerned about the land and are vocal about it, “ says Leitzke. “It’s hard to remember to go back and check every project, but if it had been breaking down even the slightest bit, we would’ve heard about it. That’s why it was no surprise to hear the inspection found the pipe to be in perfect condition.” N-12 pipe was introduced on the market only a year before it was put in the ground under Wisconsin State Highway 42. The Wisconsin DOT was willing to try a better alternative to traditional materials. Its confidence in N-12 pipe paid off. The pipe is proving it can stand the test of time. PROTECTING THE ENVIRONMENT N-12® PIPE KEEPS FARMS IN LINE WITH EPA REGULATIONS Several years ago, no one thought much about animal waste. But with the size of animal feed operations (AFOs) growing into thousands of animals, concerns about pollution in the groundwater and the nation’s streams have come from the agricultural c o m m u n i t y, t h e pu bl ic , a n d t he Environmental Protection Agency (EPA). Under the Clean Water Act, the agricultural community is doing all it can to protect the environment and public health by developing Comprehensive Nutrient Management Plans. One way the agricultural community is addressing the situation is with waste lagoons and directing clean water away from the sites. In an effort to protect the environment from the hazards of animal waste, AFOs around the country are beginning to use ADS corrugated high density polyethylene (HDPE) pipe for this type of waste management. The long-lasting, watertight pipe transfers manure underground from barns to lagoons, keeping groundwater clean. It’s a better system for handling animal waste than a manure pile because the pipe’s inherent physical properties of chemical inertness and watertightness protect public health and keep odor to a minimum. Because of the stiffer regulations called for by the Clean Water Act and the potential threat of animal waste to surface and ground water quality, civil engineers are becoming more involved with the design of animal waste lagoons. The systems they develop have soils and embankments that are highly compacted so as to limit the seepage of any animal waste into the water table. Because they go to such great lengths to make sure there is no seepage out of the lagoon, it only makes sense that the pipe they choose to transfer the waste to the lagoon would be leak-free. In a town near Green Bay, Wisconsin, farmer Carl Theunis has 1,800 cows. He buried 2,400 feet of 18-inch, 24-inch, and 30-inch diameter ADS N-12 ProLink WT® HDPE pipe to construct a manure gravity flow system and a storm sewer system. His animal feed operation utilizes two 8,000,000-gallon capacity lagoons. The storm sewer system diverts clean rainwater away from the site. Besides being easier to handle, Theunis has found that the lagoons allow a natural “cap” to form on the waste which significantly reduces odor. Corrosion Resistance of Pipe Types 1.5 5 5 5.5 Lowest pH Lowest pH Lowest pH Highest pH 14 HDPE 4 Lowest pH Highest pH Highest pH Highest pH 10 12 9 GALVANIZED STEEL CONCRETE ALUMINIZED SOURCES: ADVANCED DRAINAGE SYSTEMS, AMERICAN CONCRETE PIPE ASSOCIATION, NATIONAL CORRUGATED STEEL PIPE ASSOCIATION “Using watertight pipe to transfer the manure addresses the pollution aspect very well,” says Theunis. “And since ADS pipe doesn’t corrode, we won’t have to come back in a few years and dig it up.” ADS Agricultural Market Manager Kevin Rapp explains N-12 pipe was chosen for the project for a number of reasons. “HDPE pipe is chemically inert, making it an ideal choice for manure handling systems. The acidic nature of manure slurries will not affect our N-12 pipe.” Traditional drainage pipe materials like concrete and steel have varying levels of resistance to chemicals. Acidic chemicals and saline conditions can deteriorate concrete, steel, and aluminum. Animal waste lagoons are just as helpful to those running small farms. USDA data shows that out of nearly a half-million agricultural operations nationwide, about 85% of them have fewer than 250 animals. Tim Doyle has a 100-acre, 160-head dairy farm in Vermont. Five years ago, Doyle built a lagoon 100 feet from his barn and used 30-inch ADS N-12 pipe to move the manure into it. Up to 48 inches in diameter, ADS N-12 ProLink WT pipe is watertight. That means the joints have undergone the ASTM (American Society for Testing and Materials) D 3212 lab test which misaligns and deflects the joint while maintaining an internal water pressure of 10.8 psi for ten minutes. Integrity comes from not only the strength of the joints, but also from the fewer amount of joints needed in an HDPE pipe system. The pipe comes in lengths of 20 feet, requiring fewer joints than other types of pipe. “Without this pipe’s size and smooth inner walls, we would be constantly reaming out the pipe to move the bulky material,” Doyle says. “And since the National Resources Conservation Service (NRCS) helped fund the project, it was very particular and had an inspector on-site to make sure the system would not leak. The ADS pipe provided the required watertight seal.” AFTER THE STORM Hurricane Floyd ripped through North Carolina last fall, ravaging areas like Wilson County. To help residents get their lives Branching Out ADS GOES INTERNATIONAL back, ADS donated nearly 4,000 feet of N-12® high density polyethylene drainage pipe to repair roads severely damaged by With the growing acceptance and use of N-12® pipe increasing dramatically, ADS is growing, too. A pipe plant the class four hurricane. in El Salvador is the new home of the first ADS international manufacturing facility. ADS CENTROAMERICA About half of the pipe was used to fix roads in the devastated Wilson County area. Because HDPE pipe is easy to handle, bury, began producing pipe this spring in San Salvador and will primarily serve Central America and Southern Mexico. For years, ADS has sold pipe to El Salvador, Mexico, and other countries in Central America for storm sewer, sanitary sewer, highway drainage, and other subsurface drainage applications. and align, crews were able to repair the “A solidly built infrastructure is critical to the overall economic development of these Central American regions,” roads faster than if they had used other says Joe Chlapaty, ADS president and chief operating officer. “We’re excited to take the lead in providing the materials to do the job. resources the region needs.” “A significant number of state highway and Chlapaty adds that developing countries look to the U.S. for innovative products. N-12 pipe has proven to be secondary roads had been lost,” says Joe a strong, reliable product in all areas of storm water management. Chlapaty, ADS president and chief operating officer. “Our pipe contribution, shipped from our plant near Charlotte, was just a jumpstart for a lot of work done.” Pipe used in the rebuilding project ranges from 18 inches to 36 inches in diameter. “We’re excited to take the lead in providing the resources the region needs.” In addition, the development of a country’s economy is directly tied to the development of a sound infrastruc- ★ ture. Just by the very nature of the product and the ease with which it can be installed, N-12 pipe plays an integral role in ensuring a successful infrastructure. ADS OPENS UP NEW OPERATION IN SAN SALVADOR, EL SALVADOR “American engineers know drainage is extremely important in the building of roads,” says John Adams, international sales manager for ADS. “In the past, they used to compact the soil under roads. They have since found well-engineered drainage systems significantly extend the life of the road.” All employees at the new facility, including the management staff, are local residents. “The Central American plant complements our 22 existing plants in the Untied States,” says Chlapaty. “If the circumstances in other international locations are right, ADS would be inclined to invest in other joint ventures.” 5