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Water infiltration is a common problem in tunnels. Such infiltration accelerates the deterioration of the structure and elements within and creates hazards in the form of icicles and slippery roadways. The severity of water infiltration often reflects various factors, so determining the appropriate remedy is challenging and frequently requires an extensive investigation to understand the source and location of the leak, the structural details of the tunnel, and the geology of the surrounding substrate.

NCHRP Synthesis 627: Practices for Controlling Tunnel Leaks, from TRB's National Cooperative Highway Research Program, documents the methods and practices used by state department of transportation tunnel owners to control tunnel leaks.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2024. Practices for Controlling Tunnel Leaks. Washington, DC: The National Academies Press. https://doi.org/10.17226/27840.

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Publication Info

96 pages |  8.5 x 11 |  Paperback
ISBN: 978-0-309-70970-5
DOI: https://doi.org/10.17226/27840
Chapters skim
Front Matter i-viii
Summary 1-3
1 Introduction 4-7
2 Literature Review 8-18
3 State of the Practice 19-31
4 Case Examples 32-37
5 Summary of Findings 38-40
References 41-42
Appendix A: NCHRP Synthesis 54-19 Practices for Controlling Tunnel Leaks - DOT Survey 43-66
Appendix B: Aggregate Survey Responses 67-86
Appendix C: Draft Interview Questions 87-90

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