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Published19/06/2025
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Today21/06/2025
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Deadline15/09/2025
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Opening of tenders15/09/2025
Utilities
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Renovation Balgstuwen (DIG-16838) Text automatically translated in your browsing language Automatically translated
Note: Not all information for this procedure were successfully computed. Please consult linked documents for more details.
The work includes the renovation of 4 bellows strings which are located around or near the Haarlemmermeerpolder. On the maps below the locations of these 4 bellows are shown. The work consists mainly of: Locations Oude Wetering, Leimuiden and Lisse: a) Lifting out the steel bottom box structures. b) Inspecting the steel bottom box structures. c) Inspecting and cleaning the concrete foundation structure, underwater. d) Renovating and preserving the steel bottom box structures. e) Inspecting, repairing and improving the locking mechanism in the locking sleeve. f) Completely renewing the rubber fabric, seals and clamping structures. g) Completely renewing the electrical installation including process automation of bellows and marine control system. h) Completely renewing the pump installation. i) Performing repair of steel sheet piles and renovating and installing a number of bollards. Location of Aalsmeer: The same work as described above, on the understanding that no steel bottom box is present here now. Instead of hoisting out, a completely new bottom box must be manufactured here. The specifications are set out in Annex 5. This describes the scope of the work in detail. Text automatically translated in your browsing language Automatically translated
https://www.tenderned.nl/aankondigingen/overzicht/382929
https://www.tenderned.nl/aankondigingen/overzicht/382929
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