Innovaon and sustainability. To bridge infrastructure Creating Value... owners challenged by schedules and budgets, these design elements provide valuable soluons—to the traveling public, they provide safe, reliable, and cost effecve transportaon infrastructure delivered in an environmentally responsible manner. That’s what we do. Looking to apply your unique design and construcon skills? We have opportunies available now—come help us make a difference. ... Delivering Solutions Planning • NEPA • Public Involvement • Design • Design-Build Construction Management/Inspection • Operations and Maintenance Services Creang value by delivering innovave and sustainable soluons for infrastructure and the environment. To learn more about Baker’s comprehensive services, visit www.mbakercorp.com or call John C. Dietrick, P.E., S.E., Bridge Technical Services Manager at 216.776.6626,
[email protected] Summer 2009 - Special Conference Issue Pittsburgh ENGINEER ENGINEERS’ SOCIETY OF WESTERN PENNSYLVANIA Offi cial Publication of the Pittsburgh Engineers’ Building 337 Fourth Avenue Engineers’ Society of Western Pennsylvania Pittsburgh, PA 15222 Tel: 412-261-0710•Fax: 412-261-1606 2 GUEST EDITORIAL e-mail:
[email protected] BY THOMAS G. LEECH AND GEORGE M. HORAS Pittsburgh ENGINEER is the quarterly publication of the Engineers’ Society 3 BRIDGE QUIZ of Western Pennsylvania (ESWP). The ideas and opinions expressed within Pittsburgh ENGINEER are those of the writers and not necessarily the A PITTSBURGH ENGINEER EXTRA members, officers or directors of ESWP. Pittsburgh ENGINEER is provided free to ESWP members and members of our subscribing affiliated technical 4 CHAIRMAN’S MESSAGE societies. Regular subscriptions are available for $10 per year. BY: LOUIS J. RUZZI 2009 ESWP Officers 6 THE MANY BRIDGES AT THE President PITTSBURGH POINT Anthony M.