NASTO President William Cass, PE

Commissioner, New Hampshire Department of Transportation

Bill Cass was appointed Commissioner in December of 2022. He joined the NHDOT in 1986 and has 37 years of experience with the NHDOT. Prior to that, Bill served for 7 years as the Department’s Assistant Commissioner and Chief Engineer for the Department.

Bill has many years of engineering; project development and management experience and his leadership is a key component to the success of the Department. He has held a number of supervisory and management positions at the Department including, Final Design Supervisor, Preliminary Design Section Head, Chief Project Manager, Assistant and Director of Project Development. Bill was Project Director, formerly Project Manager, for the largest project the NHDOT has ever under taken – the 20 mile, 800 million-dollar reconstruction and widening of Interstate I-93 from Salem to Manchester, and was involved with the project throughout its development and construction.

Bill is actively involved on national committees for the American Association of State Highway and Transportation Officials (AASHTO), and the Northeast Association of State Transportation Officials (NASTO). He has a Bachelor of Science degree in Civil Engineering from the University of New Hampshire, and lives with his wife, Colleen in Laconia.

NASTO Vice President Paul Wiedefeld

Transportation Secretary, Maryland Department of Transportation

Paul J. Wiedefeld was confirmed as Secretary of the Maryland Department of Transportation (MDOT) on February 13, 2023, and sworn in on March 2, 2023, the latest achievement in a career spanning more than 40 years, including transportation posts in the public and private sectors.

As Secretary, Mr. Wiedefeld oversees MDOT’s six agencies – the State Highway Administration, Maryland Transit Administration, Motor Vehicle Administration, Maryland Aviation Administration, Maryland Port Administration and Maryland Transportation Authority. He leads operations and maintenance of state highways, bridges, tollways, transit systems, motor vehicle licensing, Baltimore/Washington International Thurgood Marshall Airport and the Helen Delich Bentley Port of Baltimore. He serves as Chair of the MDTA Board, the Maryland Port Commission and the Maryland Aviation Commission.

NASTO Treasurer Andre Briere

Deputy Commissioner, New Hampshire DOT

Andre J. Briere is the Deputy Commissioner of the New Hampshire Department of Transportation. He was sworn into his current office on August 6th 2021. In this capacity, he oversees a $650 million annual budget and helps lead a state agency of over 1,600 employees dedicated to providing safe, efficient transportation systems for Granite Staters.  He exercises overall direction and oversight for administration and finance at NHDOT as well as statutory responsibility for all aviation, rail, and transit within the State of New Hampshire.

Mr. Briere brings extensive aviation, transportation, logistics, emergency management, and safety management experience to his role as Deputy Commissioner.  These skills were honed over decades of increasingly responsible US military commands and C-suite roles in industry. He is a US Air Force Command Pilot, Lean Six Sigma Black Belt, and FEMA-certified National Executive Emergency Manager.

Andre graduated with honors from the United States Air Force Academy in 1990 and holds multiple graduate degrees with academic distinction. He retired from the US Air Force as a full Colonel in 2019.  Mr. Briere most recently served in government as the Defense Attaché of the United States to the Russian Federation in Moscow, Russia. He lives near Concord, NH with his wife Catherine; they have two grown children. This is his second term as NASTO Treasurer.

NASTO Secretary Alexis Martin

Directory of Policy & Administration, New Hampshire DOT

Alexis Martin is the Director of Policy & Administration for the New Hampshire Department of Transportation. She began her NHDOT career as an unpaid intern in 1996. Alexis spent 10 years in the private sector before returning to the NHDOT in 2005 as the Workers Compensation & ADA Coordinator. Shortly thereafter, she became the Occupational Safety & Health Officer and was instrumental in the creation of the Office of Stewardship and Compliance, addressing environmental and occupational safety issues, primarily in the Division of Operations. She then led the Human Resources bureau for several years prior to being promoted to her current role in 2022. Alexis is a New Hampshire native. She has an associate’s degree in chemical dependency, a bachelor’s degree in occupational safety and a master’s degree in public administration.