LARGE DIAMETER PIPE | MATERIALS
addition, it is not affected by corrosive salt water and is leak-free. The award was also shared by High Country
Fusion – which provided the pipe, fittings, fusion equipment and led the offshore team. A second winner in this year’s awards was Advanced Drainage Systems (ADS), for its part in the construction of the new Howard Frankland Bridge in Tampa, Florida. The bridge has more than 2.6 million sq ft of
deck area, and cost US$875 million. Originally built as a single, four-lane, three-mile span in 1960, the new bridge has two separate roadways – with each having four general purpose lanes and two express lanes.
HP Storm polypropylene pipe from ADS was used as part of a drainage system to prevent erosion of low-lying areas leading up to the causeways. It provided the strength and stiffness required after fill material was added to Tampa Bay to create a wider causeway. The pipe’s strength and premium joints were also critical, because the differences in elevation meant that variable height barriers were required. The pipe was installed close to the wall, so had to minimise the chance of leaks – which could
cause erosion and affect the walls’ stability. In addition, Duraslot slotted drainage pipe was used between the express and general-use traffic lanes to handle stormwater runoff. This, in turn, prevents hydroplaning. Duraslot is made from N-12 pipe – comprising HDPE with an aluminium slot mounted on top. Both types of pipe had to be resilient to saltwa- ter and not corrode in this aggressive environment. Nearly 10,000 feet of HP Storm PP pipe – of various diameters – and more than 700 ft of 12in diameter HDPE slotted surface trench drain were used. The ADS pipe provided the specified flow rates, had high structural integrity and met the 100-year design life. Delivering the pipe as needed saved the contractor time, reduced labour and minimised the need for heavy equipment.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.battenfeld-cincinnati.com �
www.tecnomaticsrl.net �
www.pipelife.com �
www.agru.at �
www.plasticpipe.org �
www.adspipe.com
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