📋 Tender Overview
Adif is carrying out modernization works on a bridge located in the surroundings of Sant Cristbal de Toses in the province of Girona.This action is carried out taking advantage of the interruption of the rail traffic between Ribes de Freser and Puigcerd for the execution of the renovation works of the Toses tunnel.The bridge located on the Planes-La Molina route is 6 meters long and has a single span structure which serves to bridge the ravine with which it crosses perpendicularly. It is located 7.7 km from the southern mouth of the Toses tunnel.The first phase of the renovation works consisted of dismantling the track superstructure and clearing the land on an area of approximately 175 m2.Subsequently a manual cleaning of the same with mechanical means and cleaning with sand and water of all surfaces has been carried out to completely eliminate the vegetation.Next the grouting was carried out with mortar and concrete injections of all the areas of the bridge that had some damage. Likewise certain damaged ashlar pieces have been regenerated in order to restore the correct geometric parameters of the structure.Drainage improvement works have also been carried out to allow the rapid circulation of water and new downpipes have been concreted in the abutments for the rapid and orderly evacuation of water also preventing vegetation from invading the surface of the structure.Structure waterproofingWith the aim of improving the waterproofing of the structure a reinforced concrete slab has been executed. To do this it has been necessary to reinforce the slab in both transverse and longitudinal directions both in the lower and upper reinforcement.This action requires the prior dismantling of the track and would have required several days of total interruption to circulation which is why Adif has modified its work execution schedule to take advantage of the interruption caused by the Toses tunnel works. After waterproofing the track superstructure will be reassembled.This action contributes to the achievement of the Sustainable Development Goals SDG such as number 9 which has among its goals the development of reliable sustainable and quality infrastructures.
