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https://research.utwente.nl/en/publications/a-concept-for-trenchless-pipe-replacement/ A concept for trenchless pipe replacement - University of Twente Research Information trenchless pipe replacementuniversity of twenteconcept https://docs.lib.purdue.edu/roadschool/2016/presentations/55/ Purdue e-Pubs - Purdue Road School: Trenchless Pipe Replacement One category overlooked in the 2013 ASCE Report Card was stormwa- ter drainage, and many of the metal culverts installed in the mid 20th century deserve a... road schooltrenchless pipepurduepubsreplacement