In April of 1977, under the sponsorship of the International Road Federation, a five-man team of US bridge engineers visited Western Europe to study segmental prestressed concrete box girder bridges. The purpose of study was to examine and evaluate the current construction methods and design considerations for this type of bridge. The team visited bridges under construction and completed in West Germany, Austria, Northern Italy, Denmark, Holland, and France. Technical meetings were held with representatives of leading European design firms as well as bridge engineers from the governments of West Germany, Holland, and France. These meetings involved technical discussions of design, construction, and serviceability aspects. This paper presents information gathered during these visits and discussions on the following topics: construction with precast and cast-in-place concrete; erect by balanced cantilever, span-by-span, progressive placing, and incremental launching methods; design considerations relating to live load requirements, segmental joints, allowable tension in concrete, crack control, temperature gradient, shear keys, etc./Author/