Tenders Are Invited For Construction Of A Retention Reservoir In Zabratówka

The Subject Of The Order Includes Construction And Installation Works. The Scope Of The Order Includes The Construction Of A Drainable Earth Storage Reservoir With An Area Of ​​0.54 Ha And A Water Surface Of 0.48 Ha Along With The Necessary Technical Equipment; A Monk-Type Damming And Draining Device, A 200 Mm Fi Collector Supplying Water From The Ryjak Stream Through A Bottom Intake To The Reservoir. The Location Of The Task Includes Part Of The Plots No. 1024, 1026, 1027/2, 1028/2, 969 Located In The Town Of Zabratówka, Chmielnik Commune. The Scope Of Works Will Include: 1) Construction Of The Tank Canopy By Excavating The Soil And Then Transporting It Outside The Construction Site. The Soil From The Bowl Excavation Will Be Used For Macro-Levelling Of Municipal Property Areas Adjacent To The Reservoir. The Area Of ​​The Canopy Within The Outline Of The Upper Edges Of The Slopes Is Approximately 0.54 Ha. Depth Of The Reservoir From 2.5 To 3.0 M. Depth Of Water In The Reservoir 2.0 M. Slope Slope N = 1:2.5 Within The Monk-Type Damming And Draining Device And N = 1:2 On The Remaining Part Of The Slope. In The Vicinity Of The Monk, On The Waterside Slope, Stairs Of The Sch-3 Type, 1.0 M Wide, Will Be Constructed, Enabling Descent From The Crown To The Bottom Of The Reservoir Bowl. After Shaping And Profiling, The Slopes Will Be Supplemented With Topsoil With A 10 Cm Thick Layer, And Then Sown With A Grass Mixture. Part Of The Slopes At The Level Of The Water Surface Protected Against Water Waves With Openwork Slabs Of Dimensions. 40X60x8 Cm With A 1.20 M Strip. 2) Construction Of A Monk-Type Damming And Draining Device Located On The Western Side Of The Reservoir. The Monk Consists Of: A) A Concrete Stand With External Dimensions 0.95 X 0.80 M, Stand Height 2.50 M, B) A Deckchair Draining Water From The Reservoir To The Ryjak Stream, A Deckchair Made Of 300 Mm Pvc Pipes (Or Identical Ones, E.G. Hdpe), Deckchair Length; 25.0 M, 3) Construction Of A Collector Supplying The Retention Reservoir With Surface Waters Of The Ryjak Stream. The Collector Is Made Of 200 Mm Pvc Pipes (Or Identical Ones, E.G. Hdpe), Collector Length: 181.90 M. A 1200 Mm Concrete Inspection Well Is Planned In The Upper Part Of The Collector (Near The Stream). In The Well On The Collector There Is A Dn 200 Mm Short Cast Iron Flanged Gate Valve Installed To Regulate The Water Flow In The Collector, 4) Construction Of An Indirect Surface Water Intake In The Bottom Of The Ryjak Stream, Where Water Will Be Abstracted For The Purposes Of The Retention Tank. Indirect Surface Water Intake Made Of Perforated Pvc Filter Pipes Diameter 200 Mm, Laid Under The Stream Bottom At A Length Of 3 X 10.0 M. Pipes Laid In A Stone Embankment (Reverse Filter) Along The Stream At Km 1+531 To 1+541. The Scope Of The Order Includes All Works, Materials, Devices And Services Necessary To Perform The Order And Transfer The Facilities For Use In Accordance With Their Intended Purpose - Both Resulting Direct