The subject of the order are construction works as part of the task conducted "Reconstruction of small retention facilities consisting of 2 dry reservoirs and 2 wet reservoirs in the Ostropa forestry"

The work will consist of:

Tank A

- reconstruction of the tank basin,

- construction of trim,

- reconstruction and construction of new ditches,

- culvert construction,

- construction of a drain and drain system and an overflow system,

- construction of local strengthening and sealing of the frontal causeway.

Tank B

- construction of thresholds and trim,

- construction of the front causeway,

- construction of a drain and drain system and an overflow system,

- construction of local strengthening and sealing of the frontal causeway.

Tank C

- construction of the tank's front causeway together with the drain and drain system and the overflow system,

- construction of strengthening and sealing of the reservoir dike

Tank D

- construction of the tank's front causeway,

- construction of the overflow system,

- construction of strengthening and sealing of the reservoir dike.

Tank A

· Reconstruction of the "A" reservoir basin,

· Construction of the island in the area of the "A" reservoir basin,

· Change in the shape of the lateral inflow to the RA ditch in drezwolice,

"A" reservoir - construction of a new inlet ditch channel - over a length of approx. 30 m,

· Construction of new sections of ditches between the planned "deep holes" with a total length of 51 linear meters,

· Construction of 2 local ditches inside the ditch "A" - the so-called "Głęboczków"

· Reconstruction of the ditch with the construction of strengthening of the RA ditch at the outlet from the "A" reservoir at a length of approx. 28 m,

· Construction of three dikes with a total length of approx. 143 mb, including two with a passage function,

· Construction of two culverts dikes with a total length of approx. 32 m,

· Construction of a drain and drain system located in the front causeway of the tank consisting of a well / chamber and pipelines,

· Construction of an overflow system (overflow) with a bottom edge width of approx. 7.5 m, serving as overflow of surface waters and in emergency situations,

· Construction of an emergency ditch bed for draining water from the ditch to the RA ditch bed located below the ditch from the "A" reservoir with a total length of approx. 100 m,

· Local superstructure of existing tank slopes,

· Construction of local strengthening and sealing of the frontal causeway and construction of local strengthening of slopes of deep-water slopes and sections of ditches on the upstream and venting sides of the reservoir dike,

· Obtaining land from former dikes,

Tank B

· Construction of 2 thresholds inside the RA ditch bed in the initial zone of the reservoir,

· Construction of 2 local trim of the RA ditch inside the "B" reservoir - the so-called "Głęboczków"

· Partial change in the shape of the RA ditch at the outlet from the "B" reservoir (at a length of approx. 35 m) - ie construction of a new section of the ditch with the construction of 7 thresholds inside the RA trough,

· Construction of a frontal causeway with a passage function with a total length of approx. 82 mb,

· Construction of a drain and drain system located in the abovementioned frontal causeway of the tank, consisting of a well / chamber and a pipeline,

· Construction of the overflow system (continuous) in the abovementioned dikes with a bottom edge width of approx. 3.0 m, serving as overflow of surface waters and in emergency situations,

· Construction of local strengthening and sealing of the frontal causeway and construction of local strengthening of slopes of deep-water slopes and sections of ditches on the underside of the reservoir,

· Local superstructure of existing tank slopes

Tank C

· Partial change of location of the RA ditch inside the "C" reservoir - construction of a new ditch trough over a length of approx. 90 m,

· Construction of 6 thresholds inside the RA ditch bed,

· Construction of 3 local trims of the RA ditch inside the "C" reservoir - the so-called "Głęboczków"

· Local superstructure of existing tank slopes,

· Construction of the front leve of the reservoir with a length of approx. 86 m with drainage and drainage system in the form of wells and drainage pipelines with a total length of approx. 23 m, b

· Construction of the overflow system (continuous) in the abovementioned dikes with a width of approx. 6.5 m, serving as an overflow of surface waters and in emergency situations,

· Construction of strengthening and sealing the levee of the reservoir and construction of local reinforcements of the slopes of the deep holes and ditch sections on the underside of the reservoir,

· Cleaning the existing RA ditch inside the tank as part of maintenance work.

Tank D

Partial change of the RA ditch location inside the "D" reservoir - construction of a new ditch trough over a length of approx. 37 m,

· Construction of 3 local trims of the RA ditch inside the "D" reservoir - the so-called "Głęboczków"

· Construction of the front leve of the reservoir with a length of approx. 73 mb along with an outflow and flow system in the form of wells and outflow pipelines with a total length of approx. 22 mb,

· Construction of the overflow system (continuous) in the abovementioned dikes with a bottom edge width of about 6.0 m, which serves as overflow of surface waters and in emergency situations,

· Construction of strengthening and sealing the levee of the reservoir and construction of local reinforcements of the slopes of the deep holes and ditch sections on the underside of the reservoir,

· Local superstructure of existing tank slopes,

· Obtaining land from former dikes,

· Cleaning the existing RA ditch