The Oakland Bay Bridge which opened last year, connects San Francisco to Oakland via Yerba Buena Island. The Self-Anchored Suspension (SAS) Span is the main architectural element of the eastern portion of the Bay Bridge. It is the largest SAS in the world at 2,047 feet and the first of its kind with a single 525 foot tower. Caltrans retained AECOM to provide construction management, engineering inspection and design services for several San Francisco-Oakland Bay Bridge landmark projects.
Several bridge related world records were set upon completion:
First single tower self anchored suspension bridge
First suspension bridge with no connection between the deck and tower
First tower to use concept of shear links to protect shafts during earthquake
First use of kevlar suspender rope in suspension bridge
First bicycle path on a self anchored suspension bridge
I was able to capture some beautiful shots of the bridge in use during a perfect sunset while flying over the bay area documenting a series of AECOM projects. On the left of the photo you can see the old bridge being dismantled. This deconstruction process itself, is a remarkable engineering task. Shot with a Canon 5D mark III with a 24mm lens, f8 at 1/400th second at 400ISO. I used a circular polarizer filter to cut the slight haze and reflection on the water.
Photo © David Lloyd / AECOM