📋 Tender Overview
Contract awarded for Renovation of four bellows sluices (dig-18148) lot-0000, title: renovation of four bellows sluices (dig-18148), description: the work involves the renovation of 4 bellows sluices located around or near the haarlemmermeer polder. the work mainly consists of: locations oude wetering, leimuiden, and lisse: a) the hoisting of the steel base box constructions. b) inspecting the steel base box constructions. c) inspecting and cleaning the concrete foundation structure underwater. d) renovating and preserving the steel base box constructions. e) inspecting, repairing, and improving the locking mechanism in the locking tube. f) completely renewing the bellows fabric, seals, and clamping constructions. g) completely renewing the electrical installation including process automation of the bellows sluices and shipping regulation installations. h) renewing or renovating (choice to be determined by hhr) the pumping installations. i) carrying out repairs to steel sheet piles and renovating and placing several mooring posts. location aalsmeer: the same work as described above, with the understanding that there is no steel base box present here. instead of hoisting, a completely new base box must be manufactured here. changes compared to the previous request: the competitive procedure with negotiation was chosen because it was decided to change the scope compared to the previous request. the following items have been changed compared to the previous request: - the ceiling amount, as in the previous tender procedure, has been changed. - awarding will be based on the best price quality ratio (bpkv) - the factory test and test environment for setting up and folding one of the bellows sluices will be eliminated. instead, hhr will go through the design process with the bellows fabric supplier including validation through scale tests, so that the bellows can be procured by the contractor as a provisional item. - the design freedom of the pumping installations will be limited because a definitive design for at least bellows sluice aalsmeer will be provided with the specifications, and for the other locations, hhr will reconsider the replacement of the pumping installation and investigate whether renovation and adjustment of the existing pumping installations can be considered. - for the new base box of the bellows sluice aalsmeer, hhr will provide additional information as an annex to the specifications. - the risk distribution for applying for permits and disruptions will be changed. estimated value excluding vat: 6175000.00 eur.Renovation of four bellows sluices (dig-18148)
