The structure of this bridge uses double curved arch monotrusses to form a large, graceful S-curve. The bridge's leisurely curves echo those of the park's walkways, extending the park west over Lake Shore Drive. The bridge curves both horizontally and vertically, and creating an urban promenade that is both graceful and dynamic. The double curvature is visually active from all approaches. Its slender, minimal detailing provides excellent views to and from all areas of the bridge: there are no hidden areas. The double curvature provides greater structural dynamism incorporating the simple and unifying structure of its supporting arches. Slender and elegant arches provide the structure for a curving deck that widens at its midspans and projects outwards to create grand balconies. Continuous lighting parallel to the surface of the deck highlights its curves and provides even, low-glare illumination for the entire bridge. The bridge glides gently to rest at either side of its span, with ramps supported on tapering rusticated prairie-stone. The structure, built and galvanized entirely in the factory, is plated in zinc to prevent corrosion. The main arch is white, with a very light gray- green cast to help blend them with the landscape. Continuous stainless-steel shrouds and railings highlight the bridge deck. Natural beige prairie stone- used at the intermediate structural support and the beneath the bridge ramps as they taper into the landscape- help the bridge blend with and extend the park environment.

Structure
This Bridge's lean, muscular and dynamic form is in keeping with Chicago's traditional structural expressiveness. Form, function, and structure are one. The double horizontal and vertical curvature adds inherent structural rigidity and wind resistance. The structural detailing, which uses large steel tube and plate sections, is kept simple and clean. The concrete deck is slightly elevated from the steel structure. This highlights the bridge structure and simplifies maintenance by eliminating hidden cavities and nesting places. The main sections of the bridge will be factory pre-fabricated. They will then be delivered to the site and joined together, using scaffolding at the medians. This will minimize construction downtime, for both Lake Shore Drive and the railroad.

Lighting
Indirect lighting adjacent to the bridge deck highlights the curves of the bridge and provides even, low-glare illumination for the entire bridge. This same light source is used to cast light onto the large steel-plate fins supporting the main arches. These highlight the structure and provide visual drama at night. Energy-efficient color-corrected luminaries are housed in the continuous stainless-steel shrouds at the base of the guardrails. These are protected from vandalism by high-impact plastic lenses, but are readily accessible for maintenance.