Browsing: Rehabilitation

Features
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The Gulf Coast Water Authority (GCWA) and the City of League City, Texas, were faced with the need to rehabilitate 6,800 ft of a 39-in. PCCP water transmission main along a relatively narrow section of roadway.The decision to complete the rehabilitation of this main — which provides an interconnect between the City of Houston and Galveston County — using Swagelining allowed planners to keep the same hydraulic model/capacity, as well as giving the pipe a full structural overhaul that extended the life expectancy to at least 100 years.

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Pipe bursting specialist No-DigTec of Dallas upsized a 43-year-old, 24-in., reinforced concrete (RC) sewer pipe for The Trinity River Authority of Texas (TRA) with the pipe bursting technique.The job was part of a larger Arlington and Fort Worth, Texas, wastewater sewer upgrade project undertaken by general contractor, Mountain Cascade.

Canada
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Shawinigan is a small town in the Mauricie region of the province of Quebec, Canada. Like most small North American towns, the town was established near a river in the early 1900s, in this case, for its abundant wood that traveled down the rapids to Trois-Rivières, a renowned pulp and paper hub in the province.

Canada
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In the East Bay, Phase 5 of the Central Contra Costa Sanitary District’s sewer rehabilitation program for summer 2014 targets thousands of feet of public sewer mains located primarily in the dry oak-dotted hills of Orinda, Calif. The project calls for replacement of 6-, 8-, and 12-in. mains by either open-cut or pipebursting methods. Some pipelines will be upsized and most run through hillside easements between large well-kept properties in this relatively exclusive area.

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In order to guarantee the supply of high-quality drinking water to residents, AWWA estimates that investments of $526 billion are required for the replacement or renovation of deteriorated water mains in the next 25 years. The latest EPA report on U.S. water infrastructure comes to the conclusion that investments of $248 billion are required over the next 20 years. President Obama just recently signed the Water Resources Reform and Development Act (WRRDA) into law to modernize the U.S. water infrastructure.

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In spring and fall of 2013, multiple segments of an existing 15-in. RCP gravity sanitary sewer in the City of Montpelier, Vt., collapsed along a main commuter route in the downtown area causing a system failure. Numerous excavated point repairs were required to get the failed pipe flowing again.

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Levees form a critical part of the United States infrastructure, as past flooding has demonstrated. When a levee is breached, it causes both personal and financial hardship. With 43 percent of residents living in a county with at least one levee, their upkeep is essential.

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The unsung hero in CIPP projects is the stuff that makes it stick to the wall of the pipe — the resins.Since 1959, Interplastic Corp. has been manufacturing unsaturated polyester, vinyl ester and specialty resins, gel coats, colorants and putties under the CoREZYN, Silmar and Integrity brand names for the composites and cast polymer industries.

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