Publications

• M Younis CV 06.2025 Page 2.png

Expert Subsurface Tunnel Underground Engineer

Specialties & Experience of this Expert Witness

Additional Information

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, Mohamed Younis, Kevin Fu, and Brad Muray. Protecting Existing Infrastructure Near Shafts. Proceeding of the North American Tunneling Conference (NAT) 2014, June 22-25, 2014, Los Angeles, California. Moussa Wone, Mohamed Younis, Martin Ellis, and Paul Headland. Practical Method for Predicting Shaft Construction-Induced Settlement, Case History – The Blue Plains Tunnel Project. Proceedings of the Rapid Excavation and Tunneling Conference (RETC) 2013, June 23-26, 2013, Washington, DC. Paul Headland, Nate Strater, Mohamed Younis, and Dan Dobbels. Rock Mass Characterization for the WSSC Bi-County Water Tunnel. NAT 2008, June 7 – 11, 2008, San Francisco, CA. Paul Headland, and Mohamed Younis. Now What? The Soils Spring some Surprises during Trenchless Construction. Water & Environment Technology, April 2008. Paul Headland, and Mohamed Younis. Resolving Claims for Microtunneling - A Case History of the Arlington Cemetery Stormwater Outfall Tunnel. WEFTEC 2007, October 13 – 17, 2007, San Diego, CA. Madsen, Paul, Mohamed Younis, V. Gall, and Paul Headland, 2007. NATM through Clean Sands–The Michigan Street Experience. Proceedings of the Rapid Excavation and Tunneling Conference (RETC) 2007, June 10-13, 2007, Toronto, Canada. Younis, Mohamed and Robert Goodfellow, 2006. Soft Ground Tunnel Displacement due to Foundation Excavation – A Case History of the Federal DOT Building in Washington DC. Proceedings of the North American Tunneling (NAT) Conference 2006, June 10-15, 2006, Chicago, Illinois. Headland, Paul and Younis, Mohamed, 2006. Ground Deformation and Structure Stability in Highly Stressed Rock Formations. ARMA Golden Rocks 2006, June 17 – 21, 2006, Golden, Colorado. Richardson, Tom, Mohamed Younis, and Paul Headland, 2003. Geotechnical Investigations for Trenchless Technology. Proceedings of the ASCE International Conference on Pipeline Engineering and Construction, July 2003, Baltimore, Maryland. Younis, Mohamed and Robert Goodfellow, 2003. The Design and Construction of Multiple Closely Spaced Tunnels in Soft Ground, A Case History of the MAC Storm Tunnel Project. Proceedings of the Rapid Excavation and Tunneling Conference (RETC) 2003, June 16-18, 2003, New Orleans, Louisiana. Younis, Mohamed A., Brian H. Zelenko, and Christopher Dumas, 2001. Ground Improvement Feasibility Study for Large Highway Projects, A case Study of the Woodrow Wilson Bridge Replacement Project. Proceedings of the “2001 A Geo-Odyssey” on Foundations and Ground Improvement, June 9-13, 2001, Blacksburg, Virginia.