Bridge engineers very often face economic restrictions on their designs in addition to technical requirements. Those requirements are related not only to initial construction costs but also the cost to maintain the bridge condition at the level required by the bridge administration. In standard bridge structures, expansion joints are one of the most expensive components to maintain. In this regard, jointless bridges have major advantages. Integral bridges are built without joints, they span from one abutment to the other abutment, possibly over intermediate piers, without any joints in the deck. The absence of joints and bearings results in savings in initial costs and reduce maintenance efforts. Apart from economical benefits, the reduction of maintenance leads to less disturbance of the traffic over the bridge and thus to smaller environmental and social impacts. In this paper a case study is presented with the purpose of making a comparative life cycle analysis between an integral composite bridge and a concrete bridge with expansion joints. The result of this life cycle analysis will enhance the advantages of the former solution in regard of economical and environmental aspects.