Regional Transportation Director

VHB, Albany, N.Y.

A retired chief engineer for the New York State Dept. of Transportation (NYSDOT), Dennison managed an annual $1.6-billion construction program that included the ongoing $400-million Alexander Hamilton bridge rehabilitation project. Dennison's experience spans a range of positions including former regional director of Hudson River Valley Region of NYSDOT. He has also served as either town engineer, county engineer or secretary to entities including four metropolitan planning organizations as well as the New York Metropolitan Transportation Council. He has held other positions in planning, design and construction management and has also been deputy commissioner for planning and design of highways and facilities for Putnam County and director of New York state's design services bureau.

DeWitt

Senior Vice President of Construction

SL Green Realty Corp., New York

DeWitt, one of ENR New York's 2012 Top 20 Under 40 winners, joined SL Green in 2007 and was quickly promoted to vice president of construction and then on to his current position. He currently spearheads the company's 20-person construction department, which has completed more than $1 billion in projects since he joined the firm. His recent projects include 1515 Broadway's redevelopment and lobby renovation. His portfolio also includes 180 Broadway, a $90-million Pace University project that topped off last year and is SL Green's largest ground-up development to date. DeWitt graduated from the U.S. Naval Academy and was commissioned in 1996 as a surface warfare officer. In 2004 he transitioned to the commercial real estate field and spent several years in property management and construction roles at Jones Lang LaSalle, New York.

DiCola

President and CEO

DCO Energy LLC, Mays Landing, N.J.

With more than 43 years of experience in the energy management industry, DiCola is DCO Energy's founder and managing partner. In 13 years he has led the company from a five-person firm with one project in development, to a 200-plus-employee company with operations in seven states and assets valued at more than $700 million. Since 2000 DCO has completed more than 32 projects in the renewable, combined heat and power, and central energy centers markets. Recent projects include the installation of a $100-million cooling technology system—touted as the world's first seawater cooling district system—at the Bara Mar Resort in Nassau, Bahamas. DiCola's duties include directing strategic planning, project development, project management, engineering, construction and contracting.

Leventis

Managing Principal and Executive VP

Langan Engineering and Environmental Services, New York

Leventis has been in charge of his firm's New York City operations since the early 1990s. Between 1998 and 2001 he served as director general of the organizing committee for the 2004 Olympic Games in Athens, where he was in charge of overseeing activities related to Olympic works and the environment. Leventis is also president of Langan International, a Langan Engineering subsidiary, and has been leading the firm's growing international practice, spearheading the opening of two offices in the Mideast and expanding its presence in Athens; Doha, Qatar; and Istanbul. His recent New York projects include the Moynihan Station Redevelopment, the Jacob Javits Center Expansion and the United Nations Capital Program. His awards include the 1993 Grand Award of the state of New Jersey for work on the Liberty Science Center and the American Council of Engineering Companies' 1995 National Honor Award for work on the New York Hospital expansion over the FDR Drive in Manhattan. Leventis is also a geotechnical engineer whose practice involves subsurface investigations, design and construction supervision of foundations for buildings, waterfront structures and tunnels as well as dams and pile foundations.

Schwartz

President and CEO

Sam Schwartz Engineering, New York

A former New York City traffic commissioner and NYC Dept. of Transportation chief engineer, Schwartz started his transportation career in the late 1960s as a city cab driver and became a junior engineer at the traffic department in 1971. He has stayed on the move ever since with current duties that include traffic columnist for The New York Daily News and for Transportation Technology International as well as transportation and infrastructure blogger for Engineering News-Record and the Public Broadcasting System. Schwartz has been called an "urban alchemist," helping the city gain more sidewalk and green space. He has been an adjunct professor at Cooper Union, Long Island University and Brooklyn College. He has authored more than 200 professional papers and presentations and has written several books. He has won honors including the 2012 American Society of Civil Engineers' Innovation in Sustainable Civil Engineering Award and the Manhattan Chamber of Commerce's 2012 Businessman of the Year Award.