Substructures Expert Witnesses
Substructures expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on substructures. The substructures expert witness listings on this page are typically from fields/areas of expertise such as: Engineering and Geotechnical Engineering.
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Mohamed A Younis, PE
Expert Subsurface Tunnel Underground Engineer
Subsurface & Tunnel Engineering, LLC
California
Geotechnical Engineering, Engineering
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Geotechnical, Subsurface, Underground, Tunnel, Substructures, Earthwork, Drilling
Provide expert litigation, arbitration, and mediation support, exclusively focusing on geotechnical engineering for complex, high-stakes subsurface, tunnel, and underground design and construction disputes involving complex projects. Recent engagements include but are not limited to:
Providing expert litigation support and testimony on behalf of a county’s $1.6B transportation project in defense of claims brought by the general contractor (2025; ongoing);
Provided expert litigation support to legal team hired by a top-tier design-build team to defend claims associated with a $1.4B transportation project (2022);
Provided testimony on behalf of a contractor’s defense team in conjunction with a $2.4B transportation project (2018)
Publications:
Elisa Comis, Mohamed Younis, and Robert Goodfellow. Concurrent Segment Lining and TBM Design: A Coordinated Approach for Tunneling Success. Proceedings of World Tunnelling Congress (WTC) 2016, April 22-28, 2016, San Francisco, CA
Moussa Wone, M...
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Mohamed A Younis, PE
Expert Subsurface Tunnel Underground Engineer
Subsurface & Tunnel Engineering, LLC
Gaithersburg, Maryland
Geotechnical Engineering, Engineering
-
Geotechnical, Subsurface, Underground, Tunnel, Substructures, Earthwork, Drilling
Provide expert litigation, arbitration, and mediation support, exclusively focusing on geotechnical engineering for complex, high-stakes subsurface, tunnel, and underground design and construction disputes involving complex projects. Recent engagements include but are not limited to:
Providing expert litigation support and testimony on behalf of a county’s $1.6B transportation project in defense of claims brought by the general contractor (2025; ongoing);
Provided expert litigation support to legal team hired by a top-tier design-build team to defend claims associated with a $1.4B transportation project (2022);
Provided testimony on behalf of a contractor’s defense team in conjunction with a $2.4B transportation project (2018)
Publications:
Elisa Comis, Mohamed Younis, and Robert Goodfellow. Concurrent Segment Lining and TBM Design: A Coordinated Approach for Tunneling Success. Proceedings of World Tunnelling Congress (WTC) 2016, April 22-28, 2016, San Francisco, CA
Moussa Wone, M...
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Mohamed A Younis, PE
Expert Subsurface Tunnel Underground Engineer
Subsurface & Tunnel Engineering, LLC
Texas
Geotechnical Engineering, Engineering
-
Geotechnical, Subsurface, Underground, Tunnel, Substructures, Earthwork, Drilling
Provide expert litigation, arbitration, and mediation support, exclusively focusing on geotechnical engineering for complex, high-stakes subsurface, tunnel, and underground design and construction disputes involving complex projects. Recent engagements include but are not limited to:
Providing expert litigation support and testimony on behalf of a county’s $1.6B transportation project in defense of claims brought by the general contractor (2025; ongoing);
Provided expert litigation support to legal team hired by a top-tier design-build team to defend claims associated with a $1.4B transportation project (2022);
Provided testimony on behalf of a contractor’s defense team in conjunction with a $2.4B transportation project (2018)
Publications:
Elisa Comis, Mohamed Younis, and Robert Goodfellow. Concurrent Segment Lining and TBM Design: A Coordinated Approach for Tunneling Success. Proceedings of World Tunnelling Congress (WTC) 2016, April 22-28, 2016, San Francisco, CA
Moussa Wone, M...
