When I first started my engineering career, I was placed in charge of coordinating the relocation of water transmission and distribution pipelines to accommodate the construction of an interstate highway through a city of approximately 180,000 residents. Many times, these projects required pre-poured thrust block restraints due to the amended connections between new and old waterlines in a short timeframe so as not to leave customers inordinately out of water for long periods of time.
Have you ever been on a Ductile iron pipe (DI pipe) installation with restrained joint gaskets and needed to uninstall a previously assembled joint? This is normally prompted by the need to replace a displaced or a “pinched” gasket. Proper gasket placement and attention during assembly is the best way to avoid such conditions, as detailed in a previous blog by McWane Ductile. Unfortunately, the problem often does not arise until the pipeline is hydrostatically tested. In today’s Iron Strong Blog, we will examine the “Dos & Don'ts" of uninstalling with DI pipe restrained joint gaskets.
Even in this modern era, we are still concerned with many of the issues that early civilizations faced when providing water to our communities, such as supply and demand, pipeline construction and upkeep, cleanliness, conservation and cost. In the fall of 2018, McWane Ductile’s Senior Regional Engineer, Roy Mundy, had the opportunity to interview Consolidated Utility District General Manager Bill Dunnill. The two gentlemen, both with utility management experience, had a candid conversation about Bill’s day-to-day challenges, successes and his preferred choice of pipeline material. The following are excerpts from their discussion.
Have you ever heard the saying, “To the man who only has a hammer in the tool kit, every problem looks like a nail? (Abraham Maslow)” In the water utility industry, some folks may feel this way when faced with a pipeline installation that must circumvent natural or human-made obstacles, especially water crossings. So, if going around or above is not an option, then what? How about below?
In today’s modern world, there are more tools available to install water pipelines, such as open trench/cut, above-grade pier systems, and Horizontal Directional Drilling or HDD. In this blog, we’ll discuss the benefits of using Ductile iron pipe (DI pipe) for HDD and provide some considerations and tips for your pipeline installation
It is pretty much a daily occurrence here at McWane Ductile for our sales staff to receive price requests on a variety of ductile iron pipe (DI pipe) products. Usually this request is for a specific project, but occasionally design engineers will also ask for “budget pricing” for future underground utility projects. This is typically a pretty simple task, but to provide the most accurate and cost-effective pricing, there are a few items that must be addressed that will ultimately determine the final cost to the customer. This article will review some of those variables that determine the final pricing for your DI pipe needs.
Those involved in the construction of water and wastewater pipelines are probably aware of the installation methodology of Horizontal Directional Drilling (HDD). HDD is a trenchless technique that provides an installation alternative offering several benefits over traditional open-cut. HDD can be implemented with minimal disruption to surface activities, requires less working space, and can be performed more quickly than open-cut methods. HDD can be used to install new pipelines or replace existing ones. Also, it can simplify or eliminate certain permitting processes. Although there are currently no national standards regarding HDD installations of municipal underground infrastructure systems, HDD has seen a dramatic increase in recent years and is becoming more common for any pipe material. HDD may be the fastest-growing trenchless construction method today.
This article takes a deeper dive into concepts outlined in the July 2020 entry prepared by my co-worker Gary Gula, How Much Does Ductile Iron Pipe Weigh and Why Does It Matter to You? Specifically, we will focus on the pipe weight itself, answering questions such as: From where do these weights originate? Why do we show weights on each pipe? How trustworthy are these weights as provided? And, What do these weights mean to me, the pipe customer?
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