Rehabilitation of the Weir at the Moselle Lock in Koblenz

The weir was refurbished in several stages. For this purpose, Björnsen Consulting Engineers examined the external and internal structural stability of Piers I–IV and of the spillway sections (bays). For the rehabilitation of Bay 3, the existing invert was replaced and Pier III was extended toward both the headwater and the tailwater. In order to be able to carry out the necessary construction work, it was necessary to create an excavation pit. For this purpose, two temporary box cofferdams were constructed, which were connected to the piers by sheet piles. Subsequently, comparable work was planned for Bay 2.

Our Services

• Structural inspections and stability analyses of Piers I–IV
• Stability calculation for maintenance gates
• Survey program and appraisal
• Rock and concrete testing
• Structural engineering, phases 1–5
• Project planning for pile load test and temporary shoring of piers during construction
• Planning for tailwater scour protection
• Client consultation
• Structural design for Bay 2 on behalf of ARGE Wehrfeld 2
• Geotechnical consulting for Bay 2

Client

Wasserstraßen- und Schifffahrtsamt Mosel-Saar-Lahn