Wasserstra En Neubauamt Berlin Tender

Contract notice: replacement construction of the steinhavel barrage â € lot 3 lock, weir, fish pass and boat tow The wna berlin plans to replace the lock, adapt the outer harbors, replace the weir, build a new access road including a crossing structure as well as build a new fish pass and build a new system for overcoming the gradients for muscle-powered pleasure craft. the construction of the project is divided into three lots: lot 1: access including culvert structure lot 2: outer harbors lot 3: lock, weir, faa, boat tow and ancillary systems the construction of the culvert structure, the access road during the construction period and the associated landscape protection and landscape construction measures (lot 1) were accepted in september 2020. the construction of the outer harbors, the recreational craft waiting areas, the bank protection and the associated landscape protection and landscaping measures (lot 2) were awarded in july 2020 and are expected to be completed in may 2021. the construction of the lock, the weir, the fish ladder, the boat drag and the ancillary systems as well as the associated landscape protection and landscaping measures are the subject of this tender document, lot 3. the lock and the sheet pile walls of the boat tow will be built in parallel. in order to carry out this work in the planned time frame from 09/2021 to 05/2022, 3 drilling and insertion devices are required in parallel. the weir can only be built after the lock has been completed. main construction work to be carried out: general â € technical processing, execution planning and creation of inventory documents â € set up, maintain, operate and clear the construction site - establish the electrical system landscaping work - preliminary work (clearing of the construction site) â € vegetation-technical work â € tree protection â € protection of species (amphibian protection - length 400 m, deterring breeding birds) â € picking up large mussels manufacture of a fish pass - approx. 350 m 3 concrete / masonry demolition work â € draw approx. 270 m 2 of steel sheet piling â € deliver approx. 650 t of steel sheet piles â € approx. 5,500 m of loosening and replacement boreholes â € install approx. 3,350 m 2 of steel sheet piling - install approx. 970 m 3 of underwater concrete (c 20/25) - install approx. 630 m 3 of unreinforced concrete (c 25/30) â € produce approx. 42 m 3 of reinforced concrete (c35 / 45) â € manufacture and install 76 pieces of precast concrete parts â € create and dismantle approx. 4,500 m 3 of defensive arm filling (gravel sand) â € approx. 2,700 m 2 of gravel base course, create work level and dismantle â € approx. 1,250 m 3 dry excavation pit â € approx. 2,370 m 3 excavation pit dredging â € approx. 650 m 2 base substrate made of armourstones at least 30 cm thick â € manufacture and dismantle approx. 85 t of constructio