The questions of calculation of the strain-deformed condition and durability of the carriageway of small span structures of transport structures. are presented. The basic principles of designing reinforced concrete bridge structures with the level of reliability laid down in the norms. Estimated durability of reinforced concrete slabs of the roadway on the basis of concrete endurance. Features of experimental design and construction of pedestrian bridges are considered. For engineering and scientific workers of design, road construction organizations, as well as for teachers, students and graduate students studying in the direction "Construction" .