United States Department of Transportation
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Evaluation of trench and slotted drain maintenance and cleaning : Phase 1 : final report.
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2017-03-01
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[PDF-2.21 MB]
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Alternative Title:Evaluation of trench and slotted drain maintenance and cleaning : Phase 1.
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Abstract:Trench and slotted drains are increasingly being used by ODOT to remove storm water from the roadways. These drains have to be properly cleaned and maintained to prevent vehicles from hydroplaning, eliminate flooding and avoid premature roadway failure. ODOT’s current methods for cleaning/maintaining trench and slotted drains take a lot of time and are expensive. This research report documents the current methods that ODOT utilizes for cleaning trench and slotted drains and recommends alternative cleaning methods that can improve safety, production rate and cost effectiveness. Currently, ODOT cleans trench drains manually or using a Sewer Cleaner. The manual process is very labor intensive and expensive while the Sewer Cleaner uses large amounts of water for cleaning. Alternative methods recommended and discussed in the report include Horizontal Directional Drilling (HDD), Horizontal Auger Boring (HAB) and robotic cleaners.
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