Germany - Hydraulic engineering works

Description

Replacement new construction of the Steinhavel barrage - lot 2 outer harbours.
The WNA Berlin plans the replacement of the lock, adaptation of the outer harbours, replacement of the weir, new construction of an access road including a crossing structure as well as the construction of a new fish ladder and a new facility to overcome the gradient for muscle-powered pleasure craft. Lot 2: HarboursLot 3: Lock, weir, FAA and boat passportThe construction of the culvert, the access road and the related landscape protection and landscaping measures (Lot 1) were awarded in September 2019. The construction of the harbours, the pleasure boat waiting areas, the bank protection and the related landscape protection and landscaping measures are the subject of this tender document Lot 2. New pleasure boat waiting areas and bank protection structures will be constructed in the upper and lower harbours. Floating technology is required for this. In order to carry out the work in the planned time frame of 10/2020 to 05/2021, 5 work pontoons will be required in parallel operation.main construction work to be carried outGeneral- Technical processing, implementation planning and preparation of as-built documentation;- Construction site equipment and construction aids;- Construction and dismantling of temporary transhipment points at the discretion of the contractor;- Landscape conservation work;- Preliminary work (clearing of construction site, clearing of 6236 trees and shrubs);- Vegetation work (topsoil protection, approx. 2 900 m2);- tree protection (vegetation protection fence - length 1 240 m, 30x individual tree protection);- species protection (amphibian protection - length 200 m, aversive treatment of breeding birds);- collection of large mussels;- construction of sports boat waiting areas in the upper and lower outer harbour;- pre-drilling of approx. 470 m of pile driving route (up to 8 m deep);- delivery of approx. 650 t steel sheet piling U-section (S 270);- installation of approx. 4 460 m2 steel sheet piling;- approx. 104 x mooring block (bollard, scraper bar, retaining rod) to RiGeW;- 27 m dolphin waiting station with equipment;- 25 pcs. grouting anchors;- 35 m waling (2x U300);- 470 m2 corrosion protection work;- 470 m2 corrosion protection work;- production of waiting points for commercial shipping upper and lower outer harbour- 18 pcs. steel piles delivered and installed;- 18 pcs. Manufacture of equipment (head bollards, friction strips);- 24 m2 corrosion protection work;Manufacture of bank protection in the upper and lower outer harbour- 680 m machine protection demolition and disposal;- 100 m bank protection (pile package/stone fill) demolition;- 260 m pre-drilling (to 10 m deep);- approx. Supply 400 t steel sheet pile walls U-section (S 270);- Install approx. 2,840 m2 steel sheet pile wall;- Producing approx. 550 m pile wall (pile packages);- Producing approx. 1,410 m2 stone fill;- Approx. 6,000 m3 dredging incl. disposal.

Opportunity closing date

10 June 2020

Value of contract

£1m-5m