We performed the alternatives analysis and design for reconstruction of the I-94/WIS 65 interchange in St. Croix County. This included design for reconstruction of 2.5 miles of I-94, 0.6 miles of WIS 65, and ramp terminals into roundabouts. The new roundabouts had to accommodate a key business in the north quadrant of the interchange. The County Materials plant fabricates large concrete girders and precast units. The geometrics of the ramp terminals were designed to accommodate the Oversized Overweight (OSOW) delivery vehicles, which required access through the interchange during construction of the project. The design and maintenance of traffic plans also included lowering the profile of I-94 more than 12 feet to improve stopping sight distance along I-94.

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