Part 3: Kellogg: Greenwich Design Development
This last post in our series documenting the design process of our Kellogg project, see Part 1 and Part 2, deals with the design development for Greenwich Bridge. The initial design for Greenwich Bridge included four towers, curving barriers and shaped piers. The towers served as gateway identity elements and were developed on the concept of blades of grass and aeronautic forms.
The walls, patterned in relief based on the concept of wind in the prairie, met the bridge with sloping shoulders. The combination of curves and sloping lines made a dynamic composition.
As the Webb corridor went through a redesign, more information became available about the Greenwich site, including a line of high mast power lines crossing over the bridge. The power line towers visually dominated the bridge towers.
To resolve this competition for visual dominance at the bridge, the towers were replaced with brackets. The brackets, originally designed for Zelta and the other bridges to the east of Greenwich, hold the space, creating a complete form. The other changes during this development process include replacing the hanging curved concrete bridge façade with a cut metal grill, as successfully demonstrated by our Arlington project, and updating the wall patterning to reflect the current design iteration.
The simpler, shorter design unifies the bridge with graceful arches, both in the concrete and metal patterning; and in the barrier and bracket forms. The grills use the base patterning of the concrete wall units as an influence for a more symmetrical design.
Having a strong initial concept allowed us to develop this design to meet the challenges of new site information and a reduced budget. Our design flexibility let us use these changes to introduce successful aspects of our other work to strengthen our design at Greenwich. Knowing when and how to change a design to meet or exceed the demands of a changing project is critical to our practice.