Lindenwood Dr. and Brougham Dr. Embankment Improvement
The City of Olathe, Kansas was having downstream flooding along Coffee Creek. To solve it, they decided to create a regional detention area near Lindenwood Dr. and Brougham Dr. with funding assistance from the Johnson County Stormwater Man-agement Program. In addition to managing the stormwater, this project will also support future development in this area.
For this project, our team started by surveying the area. Property acquisition was an important component of this project. Our survey team researched the property maps, obtained ownership information, and when the improvements were determined, developed tract maps to support the project.
After the initial survey was complete, hydraulic modeling was performed to determine the exact improvements which would help meet the project goal. This led to the decision to construct two dams. One dam is at the future alignment of Lindenwood Dr., and the other is at the future alignment of Brougham Dr.
The Lindenwood Dr. dam is comprised of two box culverts, a 5’ x 4’ reinforced concrete box (RCB) and a 9’ x 5’ RCB. Our team provided stabilization basins at both box culverts and designed the embankment to provide for the future roadway on top of the dam. The Brougham Dr. dam has one box culvert that is 12’ x 11’ in size. As with the Lindenwood Dr. dam, the Brougham Dr. dam was designed, so the dam embankment provides for the future roadway on top of the dam. By using the dam em-bankment for the future roadway, the city provided flood protection for these two future roadways, while also providing re-gional detention for flooding relief.
This ACEC Kansas and APWA KC Chapter award winning project has helped move Olathe forward. Not only do these dams protect residents, they also support future develop-ment. The new regional detention basins will allow businesses and residents to move to this area with a smaller investment.
Learn more about the extensive agency coordination this complex project required here.