Coastal Sand Infrastructure
Braek's replacement pipeline is contracted but not publicly handed over
Grand Port Maritime de Dunkerque concluded a EUR 1,720,365 excluding-VAT contract with Baggerbedrijf de Boer B.V. to remove and replace the submerged sand-discharge line in front of the Braek dike. The tender required service by 31 May 2025, while public project records publish no physical completion or acceptance milestone. A 2018 predecessor award shows the same contractor installed a 1.5 km line intended to support annual nourishment of 0.5 million to 2 million m3.
Baggerbedrijf de Boer holds the replacement contract
BOAMP confirms the 2025 contract, value, contractor, five bids, winning variant and contract date. The corrected tender confirms the service deadline. The official BOAMP dataset controls the separate 2018 predecessor facts. Owner and regional sources explain beneficial reuse and coastal-protection context. Public project records publish no dated removal, installation, testing, acceptance or use milestone, and name no downstream project-specific supplier.
The 2018 award exposes the infrastructure lineage
This small contract controls a recurring coastal-protection interface: maintenance-dredging sand must move from vessel and pumping system through a submerged line to the Braek frontage. The 2025 result identifies the prime, value, five bids and a winning variant. It does not identify the replacement geometry, marine spread, downstream suppliers, installed condition or return to service.
Evidence conclusion
Physical installation and owner acceptance remain unpublished
The 2018 BOAMP record defines the predecessor asset: a 1.5 km original line, an annual nourishment requirement of 0.5 million to 2 million m3, a EUR 1,097,589 award to the same contractor and a five-million-m3 guarantee reference. Those facts explain the operating purpose but cannot be transferred to the replacement design. The current status should remain at contracted award until dated removal, installation, test and owner-acceptance evidence is public.
Outstanding evidence
- Old-line removal and replacement-pipe delivery
- Winning variant and current technical geometry
- Named marine plant, diving, survey and fabrication parties
- As-laid verification, integrity or flow testing and commissioning
- Owner acceptance, first sand discharge and final account
Subject index
Related subjects
These subject pages bring together related projects, technical articles, reports, and evidence methods.
Sources used 6
- Braek submerged sand-discharge pipeline replacement award BOAMP, Published 9 April 2025; reviewed 5 August 2026
- BOAMP 25-39677 award PDF BOAMP, Sent 8 April 2025
- BOAMP 24-88533 corrected tender PDF BOAMP, Sent 26 July 2024
- 2018 Braek pipeline installation award record BOAMP open dataset, Published 22 December 2018; reviewed 5 August 2026
- How to manage sand flows Dunkerque-Port, Historical owner context reviewed 5 August 2026
- Regional integrated shoreline-management diagnostic DREAL Hauts-de-France, 2022 report reviewed 5 August 2026