France – Ouvrages d'art et de génie civil – Sanef - Confortement d'ouvrages de traversées hydrauliques (OTH) - 2025/2026 Lot n°7 : A1 - Travaux de réhabilitation de l'ouvrage de traversée hydraulique - PR75

DeadlineJune 18, 2026 at 11:00 AMClosed 27 days ago

AI summary

This tender concerns the rehabilitation of a hydraulic crossing structure (OTH) located beneath the A1 motorway at kilometre point 75. The double steel pipe (1600 mm diameter) suffers from corrosion, overflow issues, and associated sheet pile degradation. Work includes cleaning, relining the main structure, and repairing associated infrastructure including scour protection and masonry.

#civil engineering#hydraulic structures#motorway infrastructure#steel corrosion#pipe rehabilitation#france#sanef
Fit for

Contractors specialising in civil engineering, hydraulic infrastructure rehabilitation, and motorway maintenance works should bid. Firms must demonstrate relevant technical capacity and prior experience.

Key requirements

Suppliers must possess expertise in hydraulic structure rehabilitation, steel pipe relining, corrosion mitigation, and civil works repair. Experience with motorway infrastructure projects and compliance with French construction standards required.

Frequently asked questions

  • What is this tender about?

    This tender concerns the rehabilitation of a hydraulic crossing structure (OTH) located beneath the A1 motorway at kilometre point 75. The double steel pipe (1600 mm diameter) suffers from corrosion, overflow issues, and associated sheet pile degradation. Work includes cleaning, relining the main structure, and repairing associated infrastructure including scour protection and masonry.

  • What are the requirements for suppliers?

    Suppliers must possess expertise in hydraulic structure rehabilitation, steel pipe relining, corrosion mitigation, and civil works repair. Experience with motorway infrastructure projects and compliance with French construction standards required.

  • What type of company should bid?

    Contractors specialising in civil engineering, hydraulic infrastructure rehabilitation, and motorway maintenance works should bid. Firms must demonstrate relevant technical capacity and prior experience.

  • Who is the buyer?

    The buyer is SANEF.

  • When does this tender close?

    Submissions close on June 18, 2026.

  • What is the estimated value?

    The estimated value is 0 EUR.

Le réseau autoroutier SANEF est équipé de nombreux ouvrages de traversée hydraulique. L'un d'entre eux situé sous l'autoroute A1, à hauteur du point kilométrique 75 est constitué d'un double busage en acier de diamètre 1600 mm en passage inférieur vis-à-vis de la section courante. Cet ouvrage étant en acier, il est attaqué par la corrosion. Il est également mis en évidence des problèmes de déversement et de corrosion feuillante des palplanches associées à cet ouvrage ainsi qu'en aval de l'ouvrage, la présence d'affouillements et de maçonneries dégradées Il s'agira donc de nettoyer l'ouvrage, puis de réhabiliter l'ouvrage par chemisage et de procéder à des opérations de réparation pour les ouvrages associés à l'OTH.

Buyer
SANEF
Buyer ID: 63205001900447
30 bd Gallieni Le Crossing, 92130, Issy les moulineaux
Body responsible for review procedures
Tribunal Judiciaire de Nanterre
Buyer ID: 177 801 115 00151
171-191 Avenue Juliot Curie, 92020, NANTERRE

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