/ News / Mark Grossenbacher Joins HNTB’s St. Louis Office as Practice Leader

Mark Grossenbacher Joins HNTB’s St. Louis Office as Practice Leader

Parul Dubey on July 29, 2019 - in News, People

Civil engineer provides transportation agencies with technical and project management excellence


LOUIS  – Mark Grossenbacher, PE, joined HNTB Corporation’s St. Louis office as practice leader. He is responsible for helping the firm deliver complex infrastructure solutions to transportation clients throughout the region.

Grossenbacher moved to St. Louis from HNTB’s Arlington, Virginia, office where he served as senior project manager and client service leader. There he provided day-to-day management and technical delivery of HNTB’s general engineering consultant contract with the Richmond Metropolitan Transportation Authority.

Grossenbacher is focused on serving HNTB’s transportation infrastructure clients and continuing growth of the firm’s downtown St. Louis office. “We are pleased to have Mark return to his hometown to serve our clients,” said Tim Morgan, PE, office leader for HNTB’s Central U.S. offices in Missouri, Kansas, Oklahoma and Iowa, and vice president. “Mark is a talented leader and trusted resource who will help solve critical infrastructure challenges in the region.”

Grossenbacher has nearly 35 years of comprehensive industry experience providing civil engineering and project management for design and construction of highway, interchange and bridge projects throughout the country. In recent years, he also led public involvement and community outreach efforts for large-scale transportation and transit planning projects.

Grossenbacher returns to St. Louis, where he worked with HNTB from 2001-2007.

Grossenbacher earned a Bachelor of Science in civil engineering from Missouri University of Science and Technology in Rolla. He is involved in the Transportation Engineers Association of Metropolitan St. Louis and the American Council of Engineering Companies, St. Louis.

In the St. Louis region, HNTB has been involved with numerous complex and transformative infrastructure projects, including serving as lead designer for the Stan Musial Veterans Memorial Bridge, serving as program manager on MoDOT’s I-64 reconstruction program, designing the bridge construction and ramp reconfiguration for the I-64/Poplar Street interchange at Busch Stadium, and numerous projects for St. Louis Metro.


About HNTB

HNTB Corporation is an employee-owned infrastructure firm serving public and private owners and contractors. With 105 years of service in the United States, HNTB understands the life cycle of infrastructure and addresses clients’ most complex technical, financial and operational challenges. Professionals nationwide deliver a full range of infrastructure-related services, including award-winning planning, design, and program and construction management. For more information, visit www.hntb.com, or follow HNTB on LinkedIn, Twitter, Facebook or Instagram.

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