​​​​​​​​​​​​​​A milestone for footbridges in​ the U.S.

Revestimientos y Estructuras
Superficies; Peso; Corrosión
Acero inoxidable; Dúplex
100 years
designed to last
108 m
long main span
stands for high-strength duplex
Because the bridge is close to the San Diego Bay, high resistance to corrosion was required.
Dan Fitzwilliam
senior bridge engineer, T.Y. Lin International

A milestone for footbridges

JUL. 11, 2013    

​Outokumpu’s duplex stainless steel has been chosen for a key structural element in an iconic pedestrian bridge in San Diego, California. The bridge is slated to stand as a beacon for the nation’s bridge designers and engineers in the use of stainless.

​The San Diego Harbor Drive Bridge joins a large family of pedestrian bridges built with Outokumpu materials and expertise. This includes the Singapore Marina Bay Pedestrian Bridge, the Celtic Gateway bridge in Wales, as well as the Padre Arrupe Bridge adjacent to the Guggenheim museum in Bilbao. Vehicular bridges using Outokumpu duplex include the Stonecutters Bridge in Hong Kong and the Gateway Bridge in Brisbane, Australia.


Project details

Summary: A single-cable self-anchored suspension bridge with a 108 m long main span and featuring a 40 m tall concrete pylon. The pylon is inclined at a 60-degree angle from vertical over the curved, 6 m wide deck, which is suspended along one side only. The main cable anchored to the pylon supports 34 suspenders attached to the deck.

Owner: City of San Diego

Design engineer: T.Y. Lin International, San Diego, California

Architect: Safdie Rabines Architects, California Contractor: Reyes Corporation, California

Stainless steel fabricator: AMECO USA Metal Fabricating Solutions, Cleveland, Ohio


Main cable material: Duplex stainless steel Outokumpu 2205 (EN 1.4462) plate fabricated into pipe
  • Aesthetic appearance
  • Strength
  • Easy maintenance


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