Wisconsin's Marquette Interchange Completed Early, Under Budget

摘要

The Marquette Interchange renovation, an $810-mil]ion project in Milwaukee, has been completed three months early and is expected to be $15 million under budget. The aging interchange accommodated roughly 300,000 vehicles daily and was the scene of numerous traffic accidents prior to its reconfiguration. On average, three accidents occurred daily as cars weaved across the highway to access on- and off-ramps located on both sides of the highway. The Wisconsin Department of Transportation (WisDOT) requested that the design team streamline the interchange, straighten curves, and place entrances and exits on the right-hand side of the highway to improve safety. It also required that, during the project, at least two traffic lanes be maintained in all four cardinal directions during daytime hours.