Many residents of Raytown, Missouri, including students of a nearby high school, use 83rd Street during their commute to school or work. Approximately 4,500 vehicles, including buses and bicycles, cross the 83rd Street bridge every day.
The bridge spanning White Oak Branch was built in 1970 and had become worn out after years of wear and tear from heavy use and de-icing salts. After multiple rounds of deck repairs were completed over many years to extend the structure’s life, city officials hired Olsson to study whether a more extensive rehabilitation or a full replacement of the 133-foot-long structure was more prudent.
We prepared a preliminary engineering study and presented the board of aldermen a comprehensive rehabilitation solution to extend the structure’s life an additional 30 years and multiple structural replacement solutions that weighed up-front construction costs, life-cycle costs, value, and maintenance considerations. The City of Raytown decided to replace the bridge, and our engineers designed a resource efficient replacement to meet the needs of the community. The new bridge contains two lanes for traffic, striped bike lanes, and a sidewalk for pedestrians, many of whom use the bridge to get to and from school.
Our expert team took this project from programming levels, provided inspection and suggestions for innovative solutions, prepared concept design deliverables through construction bid documents, and provided construction inspection and material testing services for the new bridge.
Design engineering services included bridge and retaining wall design, roadway design, storm drainage improvements, surveying, geotechnical investigation, sidewalk design, environmental permitting, and traffic control.
The city closed 83rd Street near the bridge on March 19, 2018, and the structure was reopened on August 1, 2018, right before school opened so as not to disrupt the students’ commute. The entire community can now enjoy the new, safer bridge for decades to come.
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