Tenders are invited for Bana rainwater

Bana rainwater 45000000-7 The stated goal of the project is to implement interventions that serve both to protect environmental values, to achieve a good ecological, water quality and quantitative state of the waters and to increase the level of protection against damage to the waters. The planned works: Improving the drainage capacity of the Bábolnai ditch by removing vegetation from the overgrown bed, or by dredging the bed to remove siltation. Improvement of the drainage capacity of the roadside ditch system of internal streets and other drainage ditch sections. The technical solution: The dredging is carried out in the section of the Bana-Bábolna ditch between 0 fkm and 2+332 fkm. The Bana-Bábolna ditch connects to the 14+811 fkm section of the receiving Cuhai Bakony. The water level of the connection: 122.68 mB.f. The gate entrances are typically not of a uniform design, the built-in culverts are placed at random levels. In order to improve the drainage conditions, the existing culverts and gate entrances must be demolished and new ones must be installed in the places shown on the site plans of the plan. Demolition and grinding of concrete elements Creation of a gravel bed under the casing-footed concrete pipe with a thickness of at least 15 cm (Trgmin= 95%) Placement of Leier TA60/100 prefabricated casing-footed concrete pipe Placement of Leier TFE60L prefabricated support element Paving restoration according to the previously existing condition József A. utca-Sport u. around the mouth, the precipitation drainage process usually stops, the suspended sediment is deposited in the ditches. To improve this situation, the ditch section on József A. Street, which becomes almost horizontal and has a minimal fall, is covered with prefabricated bed-covering elements. Creation of gravel bed 15 cm thick (Trgmin= 90%) Placement of Leier ÁE40/35-50 L trench element Fine landscaping, grass finishing Finishing works: Disturbed surfaces, copper ones in the streets must be fine landscaped, with 5 dkg/m2 grass seed. In case of damage, roads must be restored to their original condition. Quantities: Demolition, construction material recycling: Shredding (breaking, grinding) of recyclable materials with a traditional crushing machine, equipment installed at the workplace, jaw crusher, power consumption: 10-19 kW, crushing capacity: 10-25 t / hour Weeding, soil and rock work: Reed mowing in a flat area, mechanical power 93.3 m2 Excavation of utility by hand, soil class: IV. 108m2 Expansion and desilting of an existing channel, with mechanical power, over a section area of​​6.1 m² 5039 m2 Replacement of water utility for frost protection reasons in a grassy area 16 replacement of water utility under an asphalted area, with pavement restoration 18m2 Loading of excavated soil on a transport device, by machine, soil class I-IV. 5039m2 Pushing and spreading of uncultivated land, I-IV. in class soil, 5039m2 between 20.1-50.0 m distance Mirror production without compaction, on a flat surface with mechanical power, with additional manual work soil class: I-IV. 473m2 Public works, sewer construction: prefabricated reinforced concrete end wall sealing the pipe culvert under the gate entrance, placement of block pipe end or discharge head, without earthwork, for culverts with a diameter of 50-60 cm, CSOMIÉP support element with a diameter of 60 cm plastic or for footed concrete pipe (100/240/138) 84 pieces Installation of circular section , footed concrete pipe with cement mortar joint, 1.00 m long prefabricated concrete pipes, inner pipe diameter: 60 cm 168m Making bedrock in a pre-made mirror, under water construction masonry, from graded sand or sandy gravel, Raw sandy gravel, NHK 0/125 QT, Hegyeshalom 71m3 Easy placement of prefabricated reinforced concrete trench and bed covering elements, without earthwork, between 15-40 cm inner trench bottom width, LEIER ÁE 40/35-50 L trench element, Article number: HUTPS4908 620m Demolition of a channel made of prefabricated pipe elements into rubble, concrete pipe with casing or base 31-60 between cm diameter 168m Construction of water construction stone pile, dry-deposited water construction stone, without binder, Water construction stone LMA 10/60 (kg), andesite, Basalt-Középkő, Dunabogdány 41m3 Road surface base: Construction of rolled crushed stone track, 2 cm thick binder and 2 cm thick covering material with a spread, made of crushed stone or slag, 10 cm thick, Z 20/55 crushed stone, NZ 4/11 crushed stone binder and NZ 0/4 crushed stone covering material, KŐKA, Iszkaszentgyörgy 840m2 Preparation of a concrete pavement base, 6-30 cm thick, treated with a sprayed protective layer, width greater than 2.00 m 15m3 The detailed technical content is contained in the technical documentation and unpriced budgets.