Special Applications: Artistic Merit |
Photo courtesy of WACA
The river-inspired walkways on this bridge in Redmond demonstrate a variety of artistic concrete installation techniques.
Northeast 36th Street bridge |
Location: Redmond
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The Northeast 36th Street bridge is a 480-foot-long vehicle and pedestrian bridge connecting the Overlake neighborhood and Microsoft campuses over state Route 520. The project incorporated several types of concrete installation items, including a Bomanite-imprinted roundabout, Lithocrete hand-seeded walkways with a decorative buff wash, and waved Lithocrete sedimentary walls. The sedimentary walls were poured in layers with a variety of locally harvested rocks, pebbles and other aggregates. The walls and paving effects were designed to represent a meandering river. The roundabout, with its boulders, trees and plants, offers a visual break from the asphalt paving. A major challenge was that construction was scheduled to begin in September and finish in December. Poor weather conditions had to be accounted for every day of the project. Ready-mix concrete was used to create the pedestrian walkway because of its durability, appearance, improvement to job-site cleanliness, waste management and sustainability.
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