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A large-scale project in the heart of Montpellier ...Where the Marseille RD is replacing one of the city’s major feeders. Montpellier’s largest reservoir is located in the university district, fed by the Lez catchment spring, the region’s main resource. In the framework of laying works for Line 5 of the Montpellier tram system, SADE, under the direction of the agent Razel Bec, is replacing one of two feeders transporting water from this reservoir to the city’s secondary reserves. In order to expand its capacity, a 100mm-diameter concrete pipe is to be replaced by a 1,300mm-diameter steel-core pipe along 1,050m and...

SADE in the mountains… Though ski resorts might not be opening back up right away, some will be ready and raring to go for the season because our Regional Divisions are hard at work! Thanks to fast work by our Metz and Lyon Regional Divisions, two resorts’ water systems are being given a major makeover. Water for snow-making machines: no SADE, no snowflakes! In Haut-Rhin, SMMGM (i.e. Markstein Grand-Ballon massif joint development agency) wanted to extend the Markstein ski resort’s snow-making system. To meet this demand and supply 9 new snow-making machines, the Metz Regional Division (Alsace Agency) set up:...

Down at the Blainville-sur-Orne port complex… SADE is building 2 twin XXL lifting stations for the rainwater collection, treatment and discharge project launched by Caen Normandie CCI. Identical and 50/50 These 2 underground concrete structures, located at either end of the platform, are absolutely identical. They are 7.50m high, 6m long and 3.60m wide, and house four 1,600m3/h pumps operated on a 3+1 basis. Each station is sized to lift half the volumes collected on the site up to a nearby retention and containment basin, meaning the 2 stations treat 100% of the rainwater. A tried and tested methodology The...

A new contract for two top projects in Costa Rica Signed on October 6, 2020: a fine victory for SADE Costa Rica, assisted by the Group’s Head Office IT Department Support Division. Aya, which is SADE Costa Rica’s main client, is the state-owned company that manages drinking water and wastewater treatment service for 80% of the country’s population. It recently selected SADE for the biggest network extension project is has ever launched: a gigantic wastewater collection and treatment project for more than a million users in the country’s capital, San José, protecting rivers from WW discharged into the natural environment...

SADE goes troglodyte Caen La Mer intermunicipal authority selected SADE (Rouen Regional Division) to manage a worksite to restructure the rainwater system crossing a giant abandoned underground quarry in Fleury-sur-Orne. A wastewater treatment worksite with multiple challenges. An environmental issue. The gutter-shaped stormwater main crossing the quarry overflows regularly, contaminating both the quarry floor and waters from the regionally-important Bathonian reservoir that rise up into the galleries. To resolve these issues, SADE was tasked with handling the gravity ducting (5mm/m) of this 150m segment. Since mid-June, the Giberville agency team has been setting up and slotting together the 64 concrete...

High-level lifting On a highly technical worksite with a short lead time requiring serious SADE Group resources and wide-ranging know-how. SMAV (Valenciennes Intermunicipal Wastewater Treatment Authority) selected SADE to extend its wastewater treatment network, including renovating 2 building complex connections. This project is the final phase of a major overhaul of the public wastewater treatment network. Its primary aim is to stop discharging wastewater into the La Balhaut stream. And also to reroute it to the River Escaut and reduce demand on the WWTP, which has until now handled 100% of the water from the system. 2 apartment buildings, 1 complex...

SADE Special Works connects Brittany! Intervention in the framework of a colossal project for GRT Gaz. Due for commissioning in 2021, the Landivisiau natural gas-fired combined cycle power station will strengthen the security of electricity supply in Brittany. At present, the region produces only 10% to 15% of the electricity it consumes and is therefore highly dependent on its neighbours. Discover the video of the Landivisiau site To enable its connection to the natural gas supply distribution network, GRT Gaz must lay 22km of 400mm-diameter gas pipeline across the Finistère region. The new network will cross some ten municipalities, starting...

What exactly is the “Motorway of Heat”? Head for northern France to find out! With the construction of a 7.7km section of this 20km-long heating network, SADE is playing a big part in this environmentally-responsible project. Since 2017, Covalys has operated the energy recovery centre in Halluin, a town located in the Greater Lille area. Under the terms of its outsourcing contract, Covalys began building work on a major energy recovery centre extension: a 20km heat distribution network, including a 7.7km section built by SADE. A key component of Greater Lille’s energy climate plan The Halluin energy recovery centre burns...

SADE is designing and building a dewatering system for Eiffage Immobilier The aim of this dewatering system is to transport water from the water table lowering system set up on a gigantic urban redevelopment site in Asnières-sur-Seine, not far from the River Seine (of course), a further 390m to join a wastewater system operated by SEVESC. An overhead system This gravity system features 12m steel tubes (Ø 300 and 400) installed at an average height of 4.5m on hangers designed by SADE Ingénierie. The facility’s 37 hangers, each weighing around 10t, were built on public roads, mainly along Rue Henri...