On the Noordereiland in the centre of Rotterdam, The Port of Rotterdam Authority is going to renovate 500 metres of quayside on the Maas quay. In December 2015, around 40 metres of it subsided. Investigations revealed that not only the section where the subsidence occurred needed to be repaired, because the quay no longer meets current technical requirements. The original quay dates back to 1892.
Replacing 500 metres of quay is a good solution. Also for the liveability of the residents and businesses on the Noordereiland, because it considerably reduces the chance of flooding.”
— Ronald Paul, Chief Operations Officer at the Port Authority
According to statistics from the Directorate-General for Public Works and Water Management, on average the Noordereiland gets flooded once a year. The island is in an area outside the dykes. Legally speaking, the risk of flooding and any potential consequences are the responsibility of the residents and businesses themselves. However, the Port Authority sees the construction of the 500-metre-long new quay as a chance to reduce the risk of flooding for the inhabitants and businesses and to invest in the living environment. The quay is currently between de New Amsterdam Water Level (NAP) +2.55 and +2.7 metres high. It will be increased to NAP +3 metres. Increasing the height of the current quay will reduce the risk of the Maas quay flooding to once in ten years.
The Port Authority conducted research in 2016 and 2017 into the cause of the subsided section of quay and into the structural status of buildings in the area. The latter was to gain a good insight into the vulnerability of the buildings, so that this can be taken into account during the construction works. This research showed that the structural status of the buildings is often unknown. The Port Authority will not be taking any risks in this area and has adapted the chosen construction method to this circumstance, in consultation with the contractor Hakkers B.V.
The Port Authority started on the design of a new quay in 2016. The initial design for a new quay wall did not satisfy the Municipality of Rotterdam’s buildings aesthetics committee requirements regarding retaining the original look. The Port Authority has produced a new design that satisfies the municipality’s requirements and the relevant safety standards.
The berthing function of the Maas quay will continue. As the current depth in front of the quay varies from NAP -2.5 to -5 metres, this is only suitable for inland vessels with a draught varying between 0.8 and 3.3 metres. This means that the berthing possibilities for inland shipping are restricted.
The original planned new depth was NAP - 5.2 metres, suitable for vessels with a draught of 3.5 metres. However, following investigation into the foundations of buildings on the Maas quay, it has become apparent that a deep quay is not desirable. A decision has therefore been taken to construct a uniform, smaller depth along the Maas quay of NAP 3.65 metres. This guarantees the berth for vessels with a draught of 1.9 metres.
From the start of the construction works, the Maas quay will no longer be available for berthing. The Port Authority aims to realise the construction of the quay section prior to the construction worker’s holiday in 2019. Dredging work will then take place on the Maas quay. The berthing function will be available again from October 2019, depending on the final schedule of the contractor yet to be selected. Until that time, the work area on the water will be indicated with buoyage.
Discussions and agreements with the municipality regarding phasing, parking, wastewater and the look of the new quay have been concluded. On 4 June 2018, the Port Authority received the environment permit (construction) from the Municipality of Rotterdam to replace approximately 500 metres of quay at Maaskade. This was received later than expected. No objections were submitted during the 6-week objection period.
The delay relating to the receipt of the environment permit (construction) has resulted in changes to the proposed planning of the re-construction at Maaskade. The tender procedure had to be delayed, which meant that the final selection of the contractor (award) took place in mid-August instead of mid-July. The Port Authority selected Hakkers B.V. as the contractor to realise the quay wall renovations at Maaskade. Hakkers B.V. has now started preparations for the construction works, which will commence at the end of October. The re-construction is expected to be completed by mid-December 2019.
The re-construction at Maaskade will be carried out in two phases by the contractor, Hakkers B.V. In the first phase the quay wall on the west side of the Maaskade up to Thorbeckestraat will be replaced, between house numbers 156 and 119. In the second phase, construction works will take place on the east side of the Maaskade, between house numbers 116 and 95. As the new quay wall is being raised to New Amsterdam Water Level (NAP) +3 metres, Hakkers B.V. will be installing new rainwater drainage. This is because the water will no longer naturally flow over the quay into the Maas.
Once preparations for the construction works (installing fencing, soundproofing screens and site office, and delivering building materials etc) have been concluded, Hakkers B.V. will start installing auxiliary sheet piling and removing the old quay wall construction. To minimise environmental nuisance, the old construction will be removed using concrete cutting instead of demolition. Hakkers B.V. will also install the new quay construction and anchors. Anchors for the new quay wall will be installed deep underground for extra reinforcement of the construction. The new quay construction will be finished at the end of each phase and existing paving will be re-laid.
The Port Authority and Hakkers aim to minimise hindrance to local residents as far as possible during the Maas quay construction works. However, it will not be possible to totally eliminate inconvenience during the re-construction. That is why there is considerable focus on establishing a safe construction site, introducing hindrance-minimising measures for noise, vibrations, dirt, dust and lighting, as well as a focus on preserving trees and the accessibility of roads, footpaths, parking spaces and buildings.
Communications and accessibility
The Port of Rotterdam Authority and Hakkers B.V. consider timely and clear communications and good accessibility for residents during the replacement of the Maas quay wall to be very important. That is why Hakkers B.V. will be holding a surgery every Thursday from 10.00 am to 11.00 am in the site office at Maaskade (opposite house numbers 155 to 166). In the event of emergency, including fire, theft or unauthorised intrusion on the construction site, Mr Wiechert van der Blom, Hakkers B.V. Site Manager, can be contacted on emergency number 06-51079282. For questions, comments and complaints, Hakkers B.V. can be contacted via firstname.lastname@example.org. For urgent issues, Mr Cornee Schaap, Hakkers B.V. Project Coordinator, can be contacted on 06-53104877.
Residents, companies, inland vessel skippers and other interested parties will be kept informed of the re-construction at Maaskade by the Port Authority and Hakkers B.V. via www.portofrotterdam.com/maaskade, information meetings, Open Days and this newsletter. If you would like to receive this newsletter, please register using the contact form, mentioning the Maas quay project.
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