Maintenance of hydraulic and sewerage structures in the SIAVB territory

Summary

The tender covers maintenance of hydraulic structures on the Bièvre River and its tributaries within the SIAVB territory, as well as work to provide access to sewer inspection chambers and structures. Work will take place in Yvelines, Essonne and Hauts-de-Seine. The contract runs for one year from 1 January 2027 and may be extended up to three times. Tenders must be submitted electronically by 11:00 on 10 November 2026. Variants are not permitted, and tenders must remain valid for 90 days. Check the tender documents for the precise exclusion grounds, qualification criteria and compliance requirements.