Oregon Department of Transportation (ODOT) has been specifying watertight pipes for storm sewer and some culvert pipe installations. The ODOT designer is responsible for specifying the watertight requirement, but there is no currently accepted standard for where a watertight pipe should be specified. Plastic, concrete and metal pipes are being used, and there is concern that all of the pipes do not perform equally in terms of watertightness. There are specifications for watertightness for plastic and concrete pipes, but no standard for metal pipes. To determine the state of the practice, a literature search and electronic survey of state Departments of Transportation were performed. Based on the results, it is recommended that ODOT develop standards for where and when watertight pipes should be required, as well as laboratory testing requirements for pipe joint systems. Test methods are readily available for testing polyethylene, concrete, and polyvinylchloride joints. AASHTO test method M 198 appears to be effective for metal pipes. 26 p.
This report discusses geotechnical and material considerations for culvert design and selection. The purpose of this report is to present theWyoming D...
The primary objective of this project was to formulate an economical method for repairing deteriorated clay pipes in place in the field. NJDOT maintai...
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