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Hot Tapping
Pipeline Pigging
PSI - Offshore |
US Toll Free
1-888-839-6766
International
1-918-447-5100
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TDW Online SurveyDesign and content changes to the TDW Global Solutions E-newsletter are being considered so that we can provide information and product news that is useful to you.
Please take a moment to click on this link and complete a very brief survey. http://www.createsurvey.com/c/54391-4iScau/
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TDW began conversations with the city of Chicago five years ago. It was an exploratory time at the initial stages of what would become a massive $6.6-billion airport improvement project for O’Hare International – the nation’s first or second busiest on any given day with 2,700 daily flights. Engineering News-Record magazine called the O’Hare modernization plan, “The Super Bowl of airport construction projects.” Simply speaking, they don’t come much bigger or more important. A runway extension would require the re-routing of nearly a mile of essential water line. The 90-inch, 25-year old high pressure line served 600,000 people in seven suburbs and flow interruptions were not an acceptable option.
O' Hare relocation STOPPLE® points
During three years of active discussions, the city of Chicago and the owners of the water main, Northwestern Suburban Municipal Joint Action Water Agency weighed their options and learned about TDW hot tapping and plugging technology. Eventually, after comparing apples to apples, the TDW option won out over the next best method because the next best choice would cost $80 million more to achieve the same result.
The sole source, non-competitive contract awarded to TDW is a very rare occurrence for mega-municipalities like Chicago. Competitive bidding is an absolute must – unless of course there is no other company in the world that can provide the required technology and expertise. Being a sole source was an important advantage, however once selected, the pressure to perform up to expectations, especially as an integral part of such a high visibility project, became a motivating factor for everyone involved at TDW.
The existing 90-inch ID (9-foot OD) pre-stressed concrete pipe with an internal water pressure of 210 psi would generate a bulkhead force of approximately 1.6 million pounds. The bulkhead pressure, together with other bending moments and forces represented the greatest intensity ever subjected to a folding head, line stop equipment system. To put things into clearer perspective, Engineering New-Record explained things this way: “An interesting element this fall will be when contractors (from TDW) cut off the pressurized water in the existing main and shift it to the temporary bypass, which will involve the introduction of a plugging tool. So if you make a mistake, you’ll have a gusher out there. There is no way to turn it off.” As a way to emphasize the critical nature of the process, ENR declares, “Getting that part of the job right may solidify the successful image of this Super Bowl-sized construction project.
TDW installed 12-foot thick thrust blocks at both ends of the relocated section and took on the role of General Contractor under a design-build contract. During a particularly brutal stretch of sub-zero weather in February, two 60-inch line taps were completed. The bypass operation started on March 27th when line stops were set and remained in place for seven weeks. Plugging heads were removed on May 7th at which time flow was restored to the new section of water line – all without the slightest interruption to service.
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TDW General Manager,Great Lakes Region,
Patrick Armstrong
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According to Patrick Armstrong, regional manager of the TDW Chicago Service Center, “A lot of our infrastructure in this country is falling apart.” Water utilities and municipalities worldwide can now use the success and cost savings experienced in Chicago as a basic blueprint for water line replacement or re-routing requirements.
Call 918-447-5000 or visit www.tdwilliamson.com for additional details.
The following link will take you to video documentation of the Chicago O’Hare project:
Click here or right click to save as target.
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STOPPLE® in place at O'Hare Airport
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Brochure
T.D. Williamson, Inc. continues to provide the most comprehensive hot tapping, plugging and pigging instruction available in compliance with Department of Transportation covered tasks, standards and requirements. Rigorous hands-on
training and operator qualification LineMaster™ programs are TDW's commitment
to the industry.
LineMaster Training assists you with ensuring that your technicians are trained at
the highest level available. In our state-of-the-art facilities and with our pressurized simulated pipeline, TDW's LineMaster Training program is an in-depth series of classes designed to fulfill DOT Pipeline Safety Operator Qualification rules. To meet DOT requirements, training programs must include classroom time, written exams and hands-on simulated conditions. TDW's LineMaster Training meets these requirements.
TDW LineMaster Training is the best in the business. The company you've trusted with your piping maintenance needs for more than 80 years has the experience to train your technicians and operators effectively and efficiently.
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September
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T-101 Pipeline Drilling Machine
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5-6
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Tulsa, OK - USA
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Mechanic Maintenance Training for Hot Tapping & Plugging Equipment
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10-13
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Tulsa, OK - USA
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| Hot Tapping & Plugging Job Planning and Fitting Design |
18-19 |
Tulsa, OK - USA |
New European Program call:
32-67-28-36-44 |
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Nivelles, Belgium |
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Class Information and Registration Form
For more information, contact TDW at 918-447-5100 or toll-free at 888-839-6766.
Or call your local TDW representative.
New European LineMaster Training Program in Nivelles, Belgium contact Anne.Roberfroid@TDW.be or Call 32-67-28-36-44
Don't forget to visit TDW's booth at upcoming trade shows. We are attending several in the next few months, including:
Please check the entire 2007 show listing on the website.
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® Registered trademarks of T.D.Williamson, Inc., in the United States and in foreign countries.
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