Installation de nouveaux écrans antibruit à hauteur de Dison

✓The place of performance is the autoroute sector at Dison; materials from demolitions are to be deposited at the Battice autoroute district.

✓The contract is split into two phases: a 90-calendar-day preparation phase (which must end at least 15 days before the start of works) and a 140-working-day execution phase subdivided into three steps of 40 + 60 + 40 working days, with possible redistribution as long as the total of 140 working days is not exceeded.

✓The contractor must also install and maintain a site office/pavillon for the client’s supervision staff.

✓Such as for award criteria and their weighting, the economically most advantageous tender is determined on the basis of the best quality–price ratio with two criteria: (i) Price, evaluated on the basis of the prices of evaluation (prices of inscription minus any fictive CO₂-related reduction); and (ii) CO₂ ambition level, translated into a fictive price reduction.

✓The bidder may select one CO₂ ambition level: “Non” (0 %) or levels 1–5 with corresponding fictive discounts (2 %, 4 %, 6 %, 6 %, 6 %).

✓To reach higher levels, all lower-level criteria must also be met.

✓The declared CO₂ ambition (specified in annex 5 of the offer) must be achieved at the latest one year after contract conclusion or by provisional acceptance if that occurs earlier; in multi-year contracts, proof must be provided annually.

✓Failure to prove the ambition level leads to specific penalties linked to the fictive discount.

✓Such as for risks and special conditions, the bidder is bound by its offer for 180 calendar days.

✓Subcontracting must be declared in annex 3 with the share and identity of subcontractors; the contract includes a strict electronic registration of presences on site (ONSS/AR 11/02/2014) and an obligation to notify the chosen registration method.

✓A “tous risques chantier” insurance must be taken out by the contractor, covering collapse, civil liability, third-party damage, conception/calculation/execution errors, theft/vandalism, and defective materials, with all stakeholders insured and the contracting authority as indemnification beneficiary; proof of paid premiums must be available, and insurance costs are an enterprise charge.

✓A main guarantee (cautionnement) of 5 % of the initial contract amount and an additional 10 % guarantee on specified items subject to a posteriori technical reception are required, in favour of SOFICO; justification of constitution is sent to the named SPW Director.

✓The contractor bears all general site organisation costs, signalisation, topography, insurance, studies, scaffolding/access, and extra costs for night/weekend/holiday work unless these result from unforeseen decisions of the authority.

✓There are detailed special penalties: such as 10 €/minute for unauthorized lane closures or delayed remediation of signalisation, 1,000 € per breach of general site signalisation/deviation organisation, penalties for failing to inform the PEREX centre of changes, and CO₂ ambition penalties equal to 1.5 times the unrealized fictive reduction, prorated per evaluation moment and shortfall percentage.

✓Plans by the authority are indicative principles and may be adapted on site without price unit changes; the administration reserves the right to significantly change enterprise limits and dimensional characteristics, and the contractor cannot invoke lack of data to escape responsibility.

✓For disputes about attribution, the annex explains the recourse paths before the Conseil d’État (annulation, suspension in extrême urgence) and the non-binding mediation by the Médiateur; here, the legal texts cited (loi du 17 juin 2013, LCCE, AR 19/11/2024) define which rules apply, and in case of conflict the Belgian legal framework governs, with courts of Liège competent for contractual disputes.