The object of the order is the restoration of two retention reservoirs in Wokre Forestry in oddz.1120A c, b within Bogdanowice, together with accompanying infrastructure. As part of the restoration of retention tanks, Bogdanowice is envisaged to make፦ michy; frontal dikes; side dikes and reservoir bottom; drainage ditch in reservoir canopy; drainage ditch, located below reservoir; supply ditch, discharge, drainage and draining bottom reservoir; emergency overflow ; Valve on supply ditch; Outlet to supply ditch with emergency bolt; technical road and exit; escarpment stairs.

Communication between the Contracting Authority and the Contractors, in particular the submission of statements, applications, notices and the transmission of information shall be carried out electronically on the Josephine platform or e-mail (addresses above), provided that the submission of an offer is solely for via the Josephine platform signed by qualified signature. The maximum file size is 300 MB.

As part of the restoration of the Biechów retention tank, it is envisaged to perform:

Druble sealed with bentonite mat and ground gr. min 30 cm. Crown dam with transverse drop (2 -3%). Harvest skulls No. 1 and 2 recreated by mech. excavation, formation of slopes, bottom and ditch, widened. Ditch feeding length 300 m with parameters: width 1.5 m, slope of slope 1:1 .5 reinforcement of the bottom with stone fraction 100/250 mm. On the escarpments, bedspreads 100-120 cm wide above humus sown with grasses. Outlet into the trench from the pipeline of the emergency bolt, double-sided drip and bottom on the length of 6 m stone cobbles on concrete. Trapezoidal drop ditch with a bottom of a width of 1.0 m escarpment with a slope of 1:1 depth 1.5 m. Trapezoidal drain ditch 1.2 m wide bottom 0.6 m slope with a slope of 1:1. Drying ditch fortified with wooden beams and piles with a width of 0.6 m depth 0.2 m. Monks: stand light 1m, double bed with PVC 500 mm set on lean concrete B 7.5 gr.20 cm. Heist wall with 40 mm oak shanders in slides made of C50. A culvert of 800 mm from a notched pipe of perimeter rigidity SN8 with concrete walls on a bench of concrete C-16/20 gr. 40 cm. L-type retaining walls made of concrete B-30 on the ground with B7,5 concrete backing, gr.20 cm. Walls reinforced with double mesh of ribbed bar d. 12 mm. Pipe showered with sandy material stabilized with cement in an amount of 50 kg/m3 of sand compacted with layers to a grade Is > 0.97 lengths 8.50 m. Emergency transfer paved with stone fraction 100/250 mm on a layer of concrete C-16/20 gr. 20 cm. Cement mortar welds. min 7.5 MPa with watertight additive. Below the transfer is a non-stop. Slope slope uncki 1:1 ,5 width overflow 6.0 m incline raids 1:5. Technological exit 3.0 m wide with longitudinal slope 15% of stone fraction 100/250 on a substructure of concrete C-16/20 W8 gr. 20 cm. Welds as above. Concrete staircase 1.0 m wide on a layer of concrete C-16/20 W8 gr. 20 cm and a layer of bentonite mat with 30 cm. Sealing of the causeway with vinyl wall type GW-460/5.5 height 3 m. Valve on the forest ditch behind the inlet of the pipeline DN400 of concrete B-25 W8 with oak banners 12 cm in slides of cold bent coil C140*70*5 mm. On the slopes and in the bottom of the ditch before the valve on the length of 10 m, the stone bedspread of the fraction 100/250 mm. Emergency bolt type RIA SVM-TG 400 d. 400 mm in a concrete well d. 1500 mm completed with a cast iron hatch of type D400. Insurance of slopes and bottoms on a length of 6 m and full height of slopes, cobblestones on concrete B20 gr. 20 cm. Drop ditch with a width of 1.0 m slope slope slope 1:1 ,5 m, foot of escarpment from the height of 15cm escarpment with stone overhead on the width of 1 m. 400 mm supply pipeline SN8 diameter with piling valve on concrete bench B-20 W8 and clay clay covering with 50 min cm. At the inlet of the pipeline, the separation lattice of bars d. 10 mm in a mesh spacing of 5*5 cm, the inlet of stone paving on concrete B20 W8 with a built-up radius of 1.5m. Drying ditch piping d. 400 mm on the inlet of steel grating, cobblestone cobblestones on concrete B20 W8 with a building radius 1.5m outlet preceded by an emergency bolt reinforced with cobblestone jw. Road 3.0 m with - gray-bathroom mixture fraction 0/31.5 gr. 10 cm- granite stone mix 0/63 20 cm- medium grain company 15 cm. Ground sides width 75 cm with - humus gr. 15 cm. Parameters of the tank no. 1፦ bottom 10025,0 m2 — water area 11135,0 m2- pow. at the edge of the dike 11945,0 m2- vol. 24715,0 m2- vol. constant retention use 18515,0 m2- slope 1:1 ,5. Parameters of the tank no. 2፦ bottom 5460,0 m2- water 6365,0 m2- pow. at the edge of the causeway 6535,0 m2- vol. integral 13495,0 m3- vol. constant retention 10345,0 m3- slope of slopes 1:1 ,5

Detail.description of the work and technology of the work in the construction and implementation project, Detailed technical specifications of the performance and reception of works, objects of works, Water and legal operation