Using the Complete Street Policy to Make Route AA Safer

Using the Complete Street Policy to Make Route AA Safer

Affinis designed improvements to approximately 2,200 feet of Route AA (Main Street) in Grain Valley, Missouri.

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Safety Certifications

Safety Certifications

Safety is always a priority at Affinis. It is particularly important for those working in the field.

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Affinis Engineer Passes on Engineering at Home

Affinis Engineer Passes on Engineering at Home

The Rottinghaus family has a long history with MoDOT.

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Affinis offers civil engineering, surveying, and consulting services. Our dedicated team provides constructible designs with outstanding client service.

Site Development


Our team has extensive experience in all phases of site work and has completed projects that range from the development of raw land to urban in-fill.


Federal Services – Environmental

federal services downtown airport

We offer several environmental services under the federal services umbrella that are actually outside of the federal realm. They are Section 1135 Ecosystem Restoration Projects and Section 14 Streambank Stabilization Projects.


From The Blog

Wednesday, May 18th, 2016
Public Engagement Strategies for Complex Projects

For our public engagement series, we interviewed Affinis co-workers on strategies, best practices, and lessons learned. In the first installment, we’re sharing thoughts from Linda Rottinghaus, PE, ENV SP on complex projects. This post covers her recent work on K-68. Who are the stakeholders on the K-68 project? The stakeholders include property and business owners, the […]



Affinis makes my life easier by putting their expert knowledge of the MoDOT LPA process to work for us to keep our projects running smoothly.

Bob Kee
Public Works Director City of Pleasant Hill, Missouri

The survey looked really good, by the way…..excellent work. It is nice to get a good survey again.

Don Baker, PE
President Water Resources Solutions

(In my) experience with Affinis, their engineering documents are complete, thorough and constructible, thus resulting in a smoother construction phase with minimized needs for change orders.

Hye Jin Lee, PE
Former City Engineer, City of Merriam, Kansas

Building capital improvement projects is always a difficult task due to all of the variable. When we are working with Affinis plans, you know all the bases have been covered. In the past five years, our Affinis plans have been flawless, and the staff is top notch and always there when you need them.

Joe Chick
Former CIP Construction Inspector City of Merriam, Kansas

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