HMR, an engineering studio specialized in design, works management, safety at the site, and safety for the company

Botte on the Trezze Canal


Work execution period: 2002-2008

Client: Consorzio Venezia Nuova

Activities: Works Management, Design Phase and Execution Phase Safety Coordination

Amount:  5.581 million Euros

One of the largest inflows of fresh water to the Venice Lagoon is the Trezze Canal, which receives water from the Adige and Bacchiglione Rivers Reclamation Consortium area through an important system of inverted siphons under the Bacchiglione and Brenta Rivers. The inverted siphon known as “Botte delle Trezze” was built at the end of the 19th century after the definitive deviation of the mouth of the Brenta River from the Venice Lagoon. The interventions required works of sheathing outside the “Botte delle Trezze” and restoration inside one of the culverts, and lastly, the limited local reconsolidation and protection of the bed and banks of the Bacchiglione. Covering slabs over the inverted siphons and deep structures such as paired  micropiles in the riverbed and diaphragms along the banks for confinement both upstream and downstream from the structure were installed. Only after the completion of the works of sheathing, reconfiguration and protection of the Bacchiglione River bed and banks could the internal restoration of culverts be performed. In order for these restoration works to be performed, the culvert was dried by the sealing of both ends. Limited to the section around the inlet and outlet of the culverts set to dry, the eternal facades were also restored. The following operations for the establishment of safety conditions were performed in the second phase:


Piazzale Stazione, 7
35131 PADOVA
P.IVA 02327500282

Tel. 0498 763 688
Fax 0498 763 382

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