Enrique Estevan bridge spanning Tormes river (Salamanca) was designed in 1898 by the engineer Saturnino Zufiaurre. Completed in 1913, it was the first steel bridge in Spain. The structure follows a straight alignment and consists of 6 steel spans supported on piers and ashlar masonry abutments. Its total length is 220m and its width is 10m distributed in two sidewalks of 1.40m each and a 7.20m pavement containing two lanes. Each span consists of five steel 0.90m depth circular arches with solid webs. The span between supports of these two-hinged arches is 33m. Their rise is 3.13m and the interaxis corresponds to 2.40m.

The main operations were carried out on the platform, where the existing handrail was repaired, sidewalks were adjusted (providing them with a cross slope preventing water accumulation and ice formation) and joints between deck and pier contributing to seepage and subsequent corrosion of the steel arches and spandrel columns’ structure were eliminated.

Ashlar paraments at abutments were cleaned and restored and a comprehensive rehabilitation of the extremely corroded steel structure was carried out. In order to clean the steel structure, the hydro-jetting method was used. By spraying water at high pressures, poorly adhered paint layers were completely removed. Elements with a 10% section loss or excessive deformation due to rust formations in joints were subsequently dismantled and removed. Eventually, removed elements were treated or restored and a multilayer paint system was applied in order to reach a C4 corrosion protection.