Lot 1 SDN CRAIOVA

Main works for current maintenance: Ind.101.2.2. - Prevention of flood effects, as follows: - Maintenance of riverbank protection works and river course regularization - Repair of cement concrete ditches and gutters C 30/37 cast in place - Repair of cement concrete ditches and gutters C 30/37 prefabricated slabs - 50 kg capacity raffia bags filled with sand (0-7 fraction) for flood intervention - Dry stone masonry from blocks fraction 100-600 kg/piece, wedged with blocks fraction 0-100 kg/piece for flood intervention - Small volume bank protection, local riverbed corrections, guard ditches, torrent and drainage channel arrangements up to 200m in length (gabions) - Maintenance of retaining walls: - maintenance of vaults with pillars, reinforcements, and retaining or lining walls, cleaning of crests and weep holes of vegetation, debris, as well as isolated corrections; - repairs with cement concrete C 30/37 and mortars M 100 of vaults with pillars, reinforcements, and retaining or lining walls. Ind.101.3. Current maintenance of bridges, overpasses, culverts, and tunnels; - Maintenance of masonry, concrete, reinforced concrete, prestressed concrete bridges, overpasses: - Repair of plasterwork on superstructure or infrastructure on isolated surfaces (with special mortars) - Cleaning of degraded joints and filling them with mortar - Cleaning of degraded joints and filling them with bituminous mastic - Cleaning of benches - Cleaning and lubrication of bearings - Cleaning of the track of mud and debris, drains, and expansion joint covers - Isolated embankment fillings at ramps - Repairs to metal pedestrian barriers - Repairs to concrete pedestrian barriers - Repairs to curbs (wheel stoppers) - Repairs to sidewalks - Replacement of curbs - Repairs to drains - Repairs to drains - completion of drain gratings - Waterproofing repairs - Cleaning of casemates - Repair of casemates - Repair of cone quarters from slabs - Repair of cone quarters from dry stone - Repair of access stairs - Repair of pedestrian barriers related to access stairs - Specific maintenance of metal bridges: - Paint maintenance by touch-ups on isolated surfaces - Straightening of deformed elements - Cleaning of nodes, uprights, and diagonals - Repainting of barriers - Maintenance of riverbeds in the bridge area: - Removal of deposits, snags, and vegetation from riverbeds that impede water flow - Cleaning of infrastructure and riverbeds from debris, riverbed/maintenance/cleaning of the major and minor riverbed of the watercourse, in the bridge area - Isolated repairs to bottom sills and bank protection - Maintenance of culverts: - Isolated repairs to crests, wings, stilling basins, sills - Unclogging and desilting - Tunnel maintenance - Isolated repairs to linings - Ensuring water drainage - Repairs to concrete and reinforced concrete surfaces - Cleaning of degraded concrete surfaces - Formwork - Reinforcement - Pouring concrete C30/37 - Anticorrosive protection of concrete elements - Scaffolding Road signage will be carried out to ensure traffic continuity during the execution of works with signs and guiding pilots in accordance with the Methodological Norms, order MI MT 1112/411/2000, this falls to the contractor. Upon completion of the works, an authorized Designer will prepare the Report for the Reception of Works, by which the Technical Condition Index (Ist) will be re-evaluated. Current maintenance works on bridges according to IND. 101 of AND554/2002 to be executed are exempt from the obligation to obtain a building permit in accordance with art.11, paragraph 1 letter k) of Law 50/1991. The descriptions of the works for the current maintenance of bridges/overpasses/culverts/tunnels/retaining walls under the administration of SDN-L...