159th Street Improvements Win ACEC KS Award

Posted on Wednesday, January 13th, 2016 by
In Accolades, Clients, Projects, Stormwater, Traffic, Transportation Engineering, tagged in Tags: , ,

We recently received an ACEC of Kansas Engineering Excellence Award for our work with the City of Overland Park on the 159th Street improvements between Quivira Road and Antioch Road. The competition recognizes engineering firms for projects that demonstrate a high degree of innovation, achievement and value.

Completed under budget and within schedule, this complex project widened 2 miles of 159th Street from a 2-lane open-ditch road to a 4-lane, median-divided thoroughfare. It also included street lighting and permanent BMPs to improve storm water runoff quality. Utility coordination was also critical to the success of the project.

Our hydrologic and hydraulic engineers completed a detailed feasibility study to determine how the city’s new stormwater and BMP ordinance could be adhered to as part of a major thoroughfare project. The limited space within right-of-way combined with the linear nature of the area proved challenging. Ultimately, the team recommended the design and installation of hydro-dynamic separators, as part of the enclosed storm drainage system. The city is continuing to use the findings from the study on future thoroughfare projects. In addition to the BMP study, our stormwater professionals:

  • Sized four reinforced concrete box culverts,
  • Laid out and sized the enclosed pipe system,
  • Prepared the appropriate permit applications,
  • And developed the stormwater pollution protection plan (SWPPP).

acec award 159th st improvements

We wanted the design to align with the city’s plans and goals. To this end, it included an extra wide median, so future roadway widening could be done within the existing right-of-way and not encroach onto nearby property owners. Provisions were also included for the construction of traffic signals at Quivira Road and Switzer Road.

Significant utility relocation work was required to clear the project corridor for construction. Early completion of preliminary plans was important, so it could be arranged and completed prior to the start of construction.

We provided all design surveys and property descriptions for right-of-way and easement acquisition. The project team’s ability to adapt to the ever-changing field conditions was crucial. A well-conceived construction phasing and traffic control plan helped maintain access during construction, while minimizing impacts to the Blue Valley Schools south of this corridor.

Finally, because the project affects a major, new residential development, the public participation program was vital to keeping developers, builders, and other stakeholders informed of the project and how construction phasing may affect their access.

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