Engineering studies – Flood Zones Atlas update, Charente watershed, Charente-Maritime 2026 Tender
Original: Engineering studies – Mise à jour de l’Atlas Zones Inondables sur le bassin versant de la Charente en Charente-Maritime
DDTM 17
In context
This is a contract notice published by a government body covering consulting. Delivery covers France (Europe). It is classified under Water, Climate Adaptation and Engineering and Infrastructure against the sustainability taxonomy rather than matched on keywords.
This tender procures engineering studies to update flood-risk mapping and hydrological modelling for the Charente watershed in France, including river overflow, surface runoff, and groundwater rise scenarios. Bidders should have expertise in hydrology, flood modelling, GIS, and risk assessment.
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About this tender
Le marché porte sur la mise à jour de l'Atlas des Zones Inondables (AZI) du bassin versant de la Charente en Charente-Maritime. L'Atlas de 1998 doit être actualisé par la simulation d'événements hydrologiques. Les objectifs sont : actualiser la connaissance du risque d'inondation, réviser les Plans de Prévention du Risque inondation (PPRi) existants et, le cas échéant, en élaborer de nouveaux, et fournir des informations utiles à la gestion de crise des inondations sur ce cours d'eau. L'étude couvre le risque de débordement du cours d'eau ainsi que le risque par ruissellement. Elle évalue également le risque lié à la remontée de nappes phréatiques et son rôle contributif dans les inondations par débordement ou par ruissellement. La durée d'exécution et les livrables détaillés ne figurent pas dans le texte disponible.
Key requirements
- ✓Hydrological event simulation and flood-risk modelling
- ✓Update 1998 Atlas Zones Inondables with current data and scenarios
- ✓Assess river overflow, surface runoff, and groundwater rise contributions
- ✓Support PPRi (flood-risk prevention plans) revision and crisis management
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How this compares
- Compared with 103 similar tenders (adaptation in France) listed in the last 12 months.
- Similar tenders that state a value range from $28k to $2.2m, with a median of $160k (12 tenders).
- It allows 30 days to respond, shorter than the typical 32 days across 84 similar tenders.
- This is the only similar tender from this organisation listed here in the last 12 months.
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About this sector
Water funding covers supply, sanitation, wastewater treatment, water efficiency, catchment management and flood risk. A large share is public procurement for infrastructure and services, alongside grants for innovation and access in underserved areas. Bidders and applicants are typically assessed on technical capacity, operating experience and community impact.
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