Interstate 94 & County Hwy. P, Pabst Farms

Oconomowoc, WI

MTJ Roundabout Engineering’s Mark Johnson, serving as a sub-consultant to R.A. Smith National, provided the capacity analysis, final horizontal designs, and peer review for this complex system of four roundabouts that feature single-lane to three-lane entries.

This roundabout corridor serves as primary access to the newly developing “Pabst Farms” mixed-use residential, retail/shopping, and commercial/office development via a new interchange.


  • Four roundabouts in series, two of which were closely spaced
  • Geometrically constrained
  • Interim/ultimate design considerations
  • Closely spaced ramp terminals
  • 2-3 lane entries
  • Lane balance applications

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