Curved Roof Trusses for Presidio Parkway Doyle Tunnel in San Francisco, CA.

Albina Co., Inc. recently bent 64 lengths x 30 ft of Tube Steel 6” x 4” x .250” wall for some curved roof trusses for the Presidio Parkway Doyle Tunnel in San Francisco. Over 30,000# of material was bent the hard way to a 52 foot radius. The Presidio Tunnel will have the same arched portal design as the roof that was installed at Battery Tunnel. All of the material was bent to architecturally exposed structural steel standards and as the customer stated during their fabrication and assembly of the parts, “The pictures below will show you how perfect things fit”.