CH2M HILL (www.ch2mhill.com), a global full-service consulting, design, construction, and operations firm, announces two key leadership appointments in the Northeast. With the 2011 acquisitions of Halcrow and Booz Allen Hamilton’s (BAH) State and Local Transit Consulting business, CH2M HILL has five times more people-power and expert capabilities to service the New York transportation infrastructure market and the entire Northeast region, stretching from Maine to Virginia. To support the firm’s growth plans, Thomas P. Klin, has been promoted to Vice President and Northeast Geographic Manager.