TPi March 2013

large diameter pipe

Strong and easy-to-install large diameter pipe

perform the installation quickly. One 200-ft section of 36" SaniTite HP pipe was installed in 90 minutes. Culvert replacement: The town of Durham, New Hampshire, found that sliplining with 5-ft diameter polypropylene pipe was the solution to a three-pronged problem being faced when they repaired a storm water culvert. The 99-year old poured-in-place box culvert runs under an active railroad track through a brownfield site. This required the repair to be able to seal out any contamination from above, not inhibit the creek’s water flow rate, and still be able to withstand the weight of 17ft of earth and the multi-ton Amtrak passenger and freight railcars frequently passing overhead every day. 180ft of 60" diameter SaniTite HP triple wall profile pipe from ADS was used. Sanitary sewer: To prevent storm water from infiltrating into its sewer system, the city of Moberly, Missouri, replaced the crumbling 80-year old brick and mortar tunnel that was serving as a combined storm water and sanitary pipeline. The new system will remain a combined sewer but, because of the type of pipe used, seeping groundwater will be prevented from entering the system, which lowers the treatment cost per gallon of effluent. The Reed Street combined sewer overflow (CSO) replacement project used more than 3,000ft of SaniTite HP pipe as a way

An innovative type of large diameter pipe is helping communities with a wide range of needs. Storm water management, culvert repair, sanitary sewer lines and combined sewer overflow (CSO) projects can all benefit from the use of SaniTite HP ® pipe made from polypropylene. The engineering-grade resin provides the pipe with the ability to withstand harsh environments while its proprietary design and construction provides a high strength-to-weight ratio. SaniTite HP pipe is a product of Advanced Drainage Systems, Inc (ADS). For more than 45 years ADS has been a supplier of corrugated plastic pipe and related products for use in the storm water drainage and sanitary sewer markets, and the company now has 85 locations around the world. Storm water management: The requirements for a large section of a new storm water drainage system were met with an authorised alternative to reinforced concrete pipe. The use of the engineered, strong and easy-to-install pipe at the Port Columbus International Airport reduced costs, sped installation and increased worker safety on the $31.4mn project. The contractor explained that because the ADS pipes, even the 60" diameter sections, were easily manoeuvrable, they were able to Some examples of applications of ADS products are as follows:

The Portland CSO replaced 24" and 30" diameter pipe with a single larger diameter pipeline

to reduce inflow and infiltration by replacing the old brick sewer with a larger diameter pipe. Combined sewer overflow (CSO): In Portland, Maine, a sewer replacement project utilised 60" diameter, high performance polypropylene pipe to increase conveyance capacity, replacing a smaller, 100-year old vitrified clay line and separating a parallel 10ft diameter combined sewer, which now solely conveys storm water. The CSO abatement project used 5,600ft of 60" SaniTite HP pipe. The $4mn project replaced runs of 24" and 30" diameter pipe with a single larger diameter pipeline to eliminate combined sewer overflows into a nearby pond and stop untreated wastewater from flowing into an estuary. “Aside from being rugged, one of the reasons we went with the ADS pipe was because we could set it in place simply with our backhoes and wouldn’t need cranes,” explained Ken Grondin of RJ Grondin & Sons, Inc. “Plus there were logistic issues. If we used concrete pipe that comes just in eight-foot lengths, we’d have nearly 200 truckloads that we’d have to coordinate to the holding site and then move again piece by piece to the trench. That’s a lot of extra handling and traffic control. So with the 20-foot lengths of the ADS pipe, instead of the eight footers, there are essentially three times fewer trucks required, and it worked out pretty well.”

Advanced Drainage Systems, Inc – USA

info@ads-pipe.com www.ads-pipe.com

The Reed Street CSO project used more than 3,000ft of SaniTite HP pipe

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March 2013 Tube Products International