Features

Following tropical storm Fay in 2008, Tallahassee’s 36-inch fiberglass resin force main, originally installed in 1985, failed in three places after 14-inches of rain fell within a 24-hour period. The three breaks occurred within a two-mile section of the force main that runs beneath the Capital Circle Roadway, a Florida Department of Transportation (FDOT) roadway that is one of the most heavily traveled in the city.

Sekisui SPR Americas, LLC has developed equipment for installing spiral-wound pipe inside damaged or deteriorating host pipe without the need for personnel to enter the pipe. Lining old pipes with spiral-wound pipe is a proven method of trenchless rehabilitation that is used worldwide. Until now in the United States, installing SPR profile spiral-wound pipe has been a man-entry process, limiting its application to pipes large enough to accommodate personnel.

For a dozen years, Municipal Forums sponsored by the Trenchless Technology Center (TTC) at Louisiana Tech University have been bringing vital information about the various trenchless technologies to municipal and public works officials. The forums are also attended by consultants, contractors, suppliers and other interested parties.

C. Vipulanadan, PhD, P.E., professor of Civil Engineering, director of CIGMAT and the Texas Hurricane Center for THC-IT

The Center for Innovative Grouting Materials and Technology (CIGMAT) Research Center was established in 1994 at the University of Houston, Houston TX. CIGMAT’s goals are to foster improved understanding of grouting and coating materials under various applications. Also of interest are other competing and complementary materials and technologies to grouting and coatings used in the construction and rehabilitation of civil infrastructure and offshore pipelines.

Jeff Griffin, Senior Editor

For horizontal directional drilling, the first “D” in the acronym HDD is the key to the success of this versatile trenchless technology -- without the directional capability, HDD could never have achieved the impact in utility construction that it has over the last 20-plus years.

Jeff Griffin, Senior Editor

Failing sanitary sewer systems are confronting American cities of all sizes. Many systems are operating beyond capacity and old underground infrastructure is crumbling with infiltration causing overflows following heavy rains and leaking sewage contaminating groundwater. Many systems are operating under U.S. Environmental Protection Agency consent decrees in which customers ultimately pay for correcting serious deficiencies.

Europe, like the United States, is struggling to upgrade its infrastructure. In Poland, for example, over 1,000 wastewater treatment plants need to be constructed or upgraded in order to meet European standards which take effect in 2015. Warsaw, the capital and largest city in Poland, has many planned upgrades, including a recent two-year-long project which will provide added capacity and decrease overflows.

An estimated 2.7 million television viewers across the country witnessed the climactic finish of the April 25 NASCAR race in Talladega, FL, as driver Kevin Harvick sped past a competitor to capture the lead in the final lap. For Shell, principal sponsor of Harvick’s high-performance car, the event represented a double victory. It reaffirmed the company’s decision to support Harvick and others on the Richard Childress Racing team, aligning Shell products with a winner on the track. And, it provided significant visibility for a critical pipeline safety message.

Jeff Griffin, Senior Editor

An Arizona company has developed a kit that converts hand-held gasoline-powered tampers to pneumatic tampers. Higher Innovative Solutions LLC (HIS), based in Peoria, AZ, offers kits for most major brands of gasoline tampers, said the company spokesman Clint Willis. The first kits were sold in the Phoenix area with orders from other parts of the country being filled by the manufacturer.

NASSCO member Barry Howell, General Manager, Visu-Sewer, Inc.

Choosing the correct nozzle (or nozzles) for a sewer cleaning job can be a daunting task for the uninformed. However, with a little bit of information and understanding of the task at hand, this process can be quite simple. The purpose of this installment of NASSCO’s Tech Tips is to provide the buyer and the end user a quick guide to the initial purchase and field usage of the proper sewer tool.

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