Two World Renowned Tunnel Experts Join HNTB Corporation

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Nasri Munfah and Sanja Zlatanic bring extensive national and international technical experience in planning, designing and managing complex underground mega projects to the firm

Tunnels are an integral part of HNTB’s work within the transportation sector.

Two of the industry’s most recognized tunneling experts have joined HNTB Corporation to lead and enhance its firmwide tunnel practice.

Nasri Munfah, PE, joins HNTB as a senior vice president and chairman of tunnel services. Munfah, who also is an adjunct professor in Columbia University’s civil engineering department, has 30 years of experience in all phases of international transportation, transit and underground engineering projects. His work includes the East Side Access Project in New York, the Windsor GreenLink in Ontario, Canada, the Istanbul Strait Road Crossing tunnel in Turkey and the Central Subway Project in San Francisco. He also was the principal investigator and one of the main authors of the first tunnel design manual in the United States. Munfah is an active member of several major tunneling organizations, including the Executive Committee of the American Underground Association.

Sanja Zlatanic, PE, joins HNTB as a vice president and chief tunneling engineer. With more than 20 years experience, she has gained widespread experience managing complex transportation, transit and underground mega projects, including work as the project manager and the chief structural engineer on the No. 7 Subway Line Extension, the East Side Access Project, the Trans Hudson Express (ARC) Project, and the Hudson-Bergen Light Rail Transit Project’s Weehawken Tunnel and Bergenline Avenue Station in New York. She has extensive experience managing multidisciplinary joint venture staff, from feasibility and conceptual engineering through final design and construction. She recently was elected a member of the International Tunneling Association Committee for Underground Space and an ITACUS ambassador for the Americas, promoting sustainable underground space use. She won the 2010 Technical Excellence Award from her previous company.

HNTB has in-depth experience providing innovative solutions and managing risks on tunneling projects in the highway, transit, rail, aviation and water resources markets. Projects range from small-diameter excavations to the largest machine-bored tunnel in the world. Some of the nation’s most complex underground projects have benefited from the firm’s award-winning planning, design and support services, including the Devil’s Slide Tunnel in San Mateo, Calif., the Washington Dulles International Airport tunnels and the SR 99 Alaskan Way Viaduct and Seawall Replacement project in Seattle.

“Tunnels are an integral part of HNTB’s work within the transportation sector,” said Ken Graham, CEO, HNTB Infrastructure. “These experienced hires will enhance and expand our firm’s ability to repair and improve existing, aging tunnel infrastructure as well as address the promise that even more impressive, modern underground structures hold to help solve pressing congestion and development challenges.”

Munfah and Zlatanic will be located in HNTB’s New York City office.

About HNTB
HNTB Corporation is an employee-owned infrastructure firm serving federal, state, municipal, military and private clients. With nearly a century of service, HNTB has the insight to understand the life cycle of infrastructure and the perspective to solve the most complex technical, financial and operational challenges. Professionals nationwide provide award-winning planning, design, program management and construction management services. For more information, visit


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