Our Team

Our engineers have extensive experience in Bridge & Structural Engineering, Tunnel Engineering, Complex Geotechnical Engineering, Underground Construction, and Project Management & Project Controls.  Our technical experts have been, and are currently involved in many noteworthy bridge (including rail and movable), tunneling, underground construction projects both in the U.S. and abroad. Our expertise includes bottom-up construction cost estimating, review of contractor change-orders, risk assessment and mitigation, constructability, and logistics.

Senior Expert Staff

Anthony R. Lancellotti, PE

Principal Tunnel & Structural Engineer

Lucy Jen, PhD, PE

Principal Geotechnical Engineer

Eldon L. Abbott, PE

Principal Geotechnical Engineer

Peter F. Donahue, PE

Principal Tunnel & Structural Engineer

Mike Sangorzan

Construction Engineer

Emad Iskander, PhD, PE

Senior Tunnel & Geo-Structural Engineer

Qamar Kazmi, PE

Senior Geotechnical Engineer

Tim Hastings

Senior Engineer & Office Manager

Ralph Borjeson

Senior Geotechnical Engineer

Anudeep Bathula

Structural Engineer

Brian Johnson

CADD / 3D / Building Information Modeling

Esther Seawright

eBuilder Document Management

Raymond J. Thompson

Senior CAD Professional

Peter F. Donahue, PE

Principal Tunnel & Structural Engineer

Technical Experts

John Ratajczak

John Ratajczak is a Charter member of the National Steel Bridge Alliance; Steering Committee Member for Steel Fabrication and Erection; Contributor for the NSBA Steel Erection Manual. Bridge Expert recognized by the American Arbitration Association for dispute resolution, construction arbitration and trial cases involving construction fatalities and construction claims. Considerable experience in cost estimating, bidding, construction engineering, construction project management for complex bridges and other special structures in United States & Overseas.

Tom Martin


Don P. Richards, PE

Don has a unique blend of expertise that includes geotechnical engineering, underground construction of facilities, tunneling, rock mechanics and mining. He has participated in numerous projects from feasibility studies through site investigations, detailed design and construction management. He has represented owners, designers, and contractors. Don’s expertise is in exploration, design, and construction management of various types and sizes of underground excavations. His experience covers a wide geologic range from soft marine soils to hard rock, located in a wide range of geographic environments from the arctic to the tropics and from deserts to mountains. Don is a fellow of the Society of Mining Engineers of AIME; Association of Engineering Geologists; International Society of Rock Mechanics; International Society of Soil Mechanics & Foundation Engineers; British Tunneling Society; International Tunneling Association; International Association of Engineering Geology; American Underground Construction