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Poplar Street Roundabout

Highland, Illinois

The City of Highland decided to widen and improve this 0.9-mile section of the primary north-south route through the City. The pavement had deteriorated and…
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Community Park

Wildwood, Missouri

The City of Wildwood is a community with a commitment to preserving the unique character of western St. Louis County and creating a livable, sustainable…
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IL 13 over Big Muddy River Bridge

Jackson County, Illinois

The structures carrying Illinois 13 over the Big Muddy River were experiencing deep settlement issues. The structure carrying eastbound traffic was constructed in 1954, while the structure…
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Sidewalk Inventory + ADA Transition Plan

St. Charles, Missouri

The City of St. Charles is located along the banks of the Missouri River, with over 400 miles of sidewalks covering 20 square miles of…
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Veterans Honor Parkway

Highland, Illinois

Veterans Honor Parkway is more than a roadway. It is a tribute to Highland veterans who tragically lost their lives while serving their nation. Banners are positioned…
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Stratton Quadrangle Permeable Pavers

Edwardsville, Illinois

At the center of the campus of Southern Illinois University Edwardsville is the Stratton Quadrangle, better known as the Quad. It is the main gathering…
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Main Street Streetscape

Collinsville, Illinois

For decades, the City of Collinsville dealt with deteriorating infrastructure, vacant buildings, and a lack of foot traffic in their downtown business district. In 1997,…
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News

November 20, 2024

Oates Associates Welcomes Blake Wilson

November 15, 2024

Travis Helmkamp Awarded the 2024 APWA John Collins Service Award

September 10, 2024

Roshan Pokhrel Earns Professional Engineer License

We offer engaging and challenging work in a friendly environment.

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Connecting People with Places

We design spaces that you experience every day. From highway overpasses to athletic fields, we solve problems and create constructible and environmentally conscious solutions that focus on the community.

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Why Choose Us?

From transportation to building infrastructure, Oates Associates has you covered. Our professionals are experts in their field, and are immersed in every project they take on, no matter the size. We build trusted partnerships based on integrity and responsiveness. Let us show you what we can do for you.

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ADA Transition Planning

Surveying & Drone Operations

Construction Administration

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