📋 Tender Overview
Contract awarded for Reconstruction of culvert no. p29800 on road iii/1951 in horná breznica_repeated lot-0001, title: reconstruction of culvert no. p29800 on road iii/1951 in horná breznica_repeated, description: the subject of the contract is the reconstruction of culvert no. p29800 on road iii/1951 in horná breznica in accordance with the bill of quantities, project documentation, and draft contract, which are attachments to these tender documents. the proposed culvert is made of concrete pipes with a minimum allowable vertical peak load of 100 kn/bm dn 800 mm at a longitudinal slope of 6%. the culvert itself uses concrete bell-shaped pipes with storage lengths of 3.0 m-1 piece, 2.5 m-2 pieces, and 2 m – 2 pieces. the outer 3-meter and 2-meter pipes are shaped into inlet and outlet structures. the pipes will be laid in a trench on concrete sleepers, which should be part of the pipe supply. after laying the pipes, the bottom part of the pipes will be concreted to a height of 400 mm with concrete c12/15. the bedding must be divided by expansion joints, which will be placed under the pipe joints at distances of max. 6.00 m. the inlet structure is designed as a sludge pit with internal plan dimensions of 1.0*2.3 m and a height of 3.15 m. the thickness of the slab and walls is 300 mm. the sludge pit is made of reinforced concrete c30/37 – cx4, xf4 (sk) – cl0.4 dmax 22 (stn en 206-1). at the bottom of the sludge pit, there is a paving of broken stone with a thickness of 200 mm with grouting using cement mortar m2.5 into concrete c12/15 with a thickness of 100 mm. the inflow into the pit is from both sides from the road ditch, and the third inflow is from a plastic pipe dn 400, which is led from the area above the road. the walls at the inlet from the ditches will be shaped into the form of ditches. the ditches in front of the inlet on both sides should be reinforced for at least 2 m in length with broken stone into a concrete bed. the outlet to the concrete pipe dn 800 is 550 mm above the bottom of the pit. at the outlet, the pipe is cut into the shape of a road slope and is laid on a concrete base of 400*600 mm made of concrete c30/37. in front of the base, a threshold (c30/37) will be concreted, which will have an anti-erosion function. the slope with a width of 2.6 m and above the top of the pipe 1 m will be reinforced with broken stone into a concrete bed (c12/15) with a thickness of 100 mm with grouting using cement mortar m2.5. under the entire width of the reinforcement, a concrete base will be placed as under the pipe. the end pipe protrudes 100 mm above the cladding of broken stone. under the outlet of the culvert, the slope will be reinforced at the request of the investor with heavy stone leveling made of broken stone weighing up to 100 kg with filling of broken stone fraction 16-32 mm. estimated value excluding vat: 48807.37 eur.Reconstruction of culvert no. p29800 on road iii/1951 in horná breznica_repeated
