Santander Bay's Footbridge

This footbridge is formed by a balcony beam, 70,7 m long, fixed to two abutments at its ends. The full length of the footbridge including both white wall accesses is 267,5 m. The flying beam is constructed of a steel–concrete composite semicircular section of 1,45 m depth. The transition between the beam and the white walls is achieved by a concrete projecting wall of 15 m length, whose depth varies parabolically from 1,45 m at the ends of the beam to 5,5 m at the foundation. The girder of the balcony beam is made up of a steel–concrete composite semicircular section. It has a constant depth of 1,45 m. The abutments are made up of concrete cup-shaped sections. Both lateral accesses are longitudinally inclined with a maximum slope of 6% and elegantly support the transitional elements between themselves and the beautiful composite flying girder.