Hamburg, Lämmersieth

New construction of the Osterbek main stem

• 1.127 m new construction of a DN 1600 combined sewer in polymer concrete
• Construction of 13 manholes, 2 of them in masonry, 3 as polymer manholes and 8 as polymer tangential manholes
• Construction of a combined sewer overflow structure with corrosion protection
• Enclosure of house/trunk connection pipes
• approx. 800 m open and approx. 400 m closed dewatering with small vacuum filters
• Pre-flooding with DN 800 siphon system with a capacity of approx. 500 l/s
• Construction of a 3.0 m wide open pipe trench with soldier pile wall shoring
• Road construction
• Traffic safety

Length: 1,127 m

Depth: 9.0 m