Pascal Klein

Dipl. Ing. ETH/SIA

Robert Maillart Twin Three-Joint Bridges, Altendorf

Three-Joint Bridges by Bureau Robert Maillart.
Span 40 m. Overall deck width 9 m.
Construction 1940, Repair and Alteration 1995. Structural Assessment 2025.

Authorities:
Canton of Schwyz, Swiss Federal Railways
Design 1940: Bureau Robert Maillart
Redesign 1995: Flückiger & Bosshard AG
Contractor 1940: Prader & Cie.
Contractor 1995: Rüesch AG, Niederurnen

Structural Assessment 2024/2025
General and detailed verification according to SIA 269-2: Existing structures – Concrete structures:
Pascal Klein, Klein Engineering
Gianfranco Bronzini, Conzett Bronzini Partners

Picture: Chriusha / CC-BY-SA-3.0 / Wikimedia Commons

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