Objectives
Seven Bridges, a master-planned community, desired to make a remarkable statement with its gateway bridge. They aimed to construct the bridge using a unique Mosaic Segmental Retaining Wall (SRW) system.
Solutions
The foundation of the bridge’s meticulous design was a 33-foot-wide corrugated steel culvert. The installation team placed geogrid-reinforced SRWs, with heights up to 15 feet, on sturdy concrete footings to form a seamless structure over a metal arch. SRWs allowed for greater design flexibility and a consistent color through the wall system, which natural stone or alternative materials could not provide for the size of the bridge. The project considered using various options, including boulders from the site, native stone, or molded plastic elements. However, the owners’ desire for a decades-long structure was the driving need to use SRWs — known for their longevity.
Results
Community members and guests enjoy the bridge daily, whether driving out of the property or walking under the bridge to admire the pond. The project earned the prestigious National Concrete Masonry Association’s Award of Excellence, recognizing its excellence in design and execution.
Team & Location
Owner: Central Platte Holdings LLC
Designer: Shafer, Kline & Warren, Inc.
Producer: Midwest Block and Brick
Installer: Barth Development
Project Location: Platte City, MO