OPŠ 09/2024, VT Ondřejnice, km 12,639 – 18,760, repair of steps and local banks

1.1. The subject of the performance of the public contract is the repair of 7 gradients and local banks on VT Ondřejnice in km 12,639 – 18,760 to the original parameters. • Construction work will be carried out on the basis of protocol number 254/221/032/OPR in terms of the removal of flood damage in the given location. • All work will take place in the bed and on the banks of the water course in the given locality. Before the work starts, the fishing crew will be caught. Security will be provided against the leakage of dangerous substances into the water course (installation of a bore wall). • At the beginning of the construction works themselves, water will be diverted using pipes and earth dikes, so that repairs can be made to the facings of the overflow edges and final thresholds, and to rehabilitate bank breaks. Subsequently, the transitional elements of the fortification of the bottom behind the final sills will be repaired with repaired stone throws above and below the overflow edges. At km 14,900, the right-bank concrete wall at the foot of the fortification will be repaired to its original parameters, with a length of 7 m, which will be followed by the fortification of the bank with stone paving. In km 12,723 – 12,870, the existing outcrop will be rehabilitated by throwing in quarry stone, and sediments will be excavated in the affected course of the channel, which will be deposited in the right-bank outcrop behind the newly built shore fortification. • Access to the construction site is via the existing local and purpose-built roads along the Ondřejnice waterway, which will be returned to their original state after the works are completed. • Basic parameters of the repair: - Total length of the treated section: 247 m. - Repair of fall steps including all their structural parts: 7 steps. - Removal of bank disturbances on 2 sections of PB: 122m of which 7m ŽB wall. Place of performance: Ostrava Contract type: Stavební práce Procedure regime: VZ malého rozsahu Awarded to: B + J stavební s.r.o. Awarded contract value: 4,494,017.01 CZK